The school's air felt fresh against your skin as you entered the building, Eunjang Highschool was as loud as it ever was — bullies humiliating younger boys, people spreading fake gossip to create more drama and the faint smell of cheap cologne coming from some older students.
Weak Hero Class is an AI simulation world on WorldOS: you make the calls and the AI plays out the story, characters, and consequences in real time. Every run is different.
How do I play Weak Hero Class online?
You play Weak Hero Class online right in your browser — nothing to download. Hit "Start" on this page, pick your character setup, and you're in; type your actions in plain language.
Is Weak Hero Class free to play online?
Yes. Your first visit after each 24-hour window automatically starts a free Zap allowance (no card needed) — enough to play Weak Hero Class regularly. Want more? There are subscription plans.
Is there a Weak Hero Class app?
WorldOS runs in your mobile and desktop browser, so you can play Weak Hero Class online without installing anything.
What are some games like Weak Hero Class?
WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Weak Hero Class.
Can I make my own Weak Hero Class?
Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.
Yeon Si-eun is the main protagonist of Weak Hero. He is a model student in the top 1% of his class and a voluntary outsider who is only interested in his studies. He is physically weak, so he protects himself with his quick analytical skills, knowledge of physics, and awareness of his surroundings.
Yeon Si-eun is a brilliant yet introverted high school student who uses intelligence to navigate his environment and fight against bullies. His story begins when his quiet life is disrupted by Jeon Yeong-bin's relentless harassment, leading Si-eun to snap and violently retaliate. Despite his lack of physical strength, he compensates with psychological tactics and resourceful use of his surroundings, often suffering injuries but prevailing in most encounters. As he faces increasing challenges, including new allies and enemies, Si-eun’s journey showcases his evolving resilience and determination. While initially disconnected, Ahn Su-ho and Si-eun's relationship grows as Su-ho offers a sense of calm and reassurance during intense moments. Su-ho’s steady presence and ability to de-escalate situations influence Si-eun, helping him manage his emotional outbursts. This connection gradually strengthens Si-eun's resolve, making him more resilient. Su-ho’s actions and support provide Si-eun with a sense of stability, contributing to his growth and emotional toughness. Yeon Si-eun typically wears the standard school uniform, which complements his introverted nature. His expressions often reflect his internal struggles, such as frustration or calm focus. His overall appearance is not one that stands out among his peers, but his presence becomes more noticeable as his emotional and mental strength develops throughout the series. Si-eun's hairstyle is simple and understated, reflecting his no-nonsense personality. His hair is dark and kept relatively short, styled in a neat, slightly tousled way. The simplicity of his hairstyle fits his practical, low-maintenance character, allowing him to blend in rather than draw attention to himself.
Relationships:
Ahn Su-ho (best friend)
Park Hu-min (close friend)
Go Hyeon-tak (former rival, by misunderstanding; close friend)
Seo Jun-tae (close friend)
Yeong-i (friend)
Oh Beom-seok (former friend; enemy)
Jeon Yeong-bin (bully; enemy)
Lee Jeong-chan (bully; enemy)
Han Tae-hoon (bully; enemy)
Jeon Seok-dae (former enemy)
Kim Gil-su (enemy)
Na Baek-jin (enemy)
Geum Seong-je (enemy)
Kang Woo-young (enemy)
Choi Hyo-man (former enemy)
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Ahn Su-ho
Ahn Su-ho is the deuteragonist in Weak Hero. He is a free spirit who is the strongest fighter in his class. He is loyal and kind but has a quick temperament, often using his strength and fighting skills to solve disagreements. After Oh Beom-seok convinces him to help Yeon Si-eun, the three boys become good friends.
Ahn Su-ho was raised by his grandmother, who remains one of the most important figures in his life. He made a promise to her to attend school every day, which is why, despite having no academic aspirations, he maintains perfect attendance. Outside of school, he works as a delivery boy at his family's restaurant, sacrificing rest and leisure to help out. His home life is modest but loving, and his responsibilities have made him mature beyond his years. Su-ho's fighting skills come from his past as a mixed martial arts trainee, although he quit the sport due to an incident that left him disillusioned. Nevertheless, those skills remain and make him a powerful force when faced with violence at school. Despite his abilities, Su-ho does not seek fights for status or power; instead, he steps in only when he sees injustice or someone being harmed. His strength becomes a shield for those weaker than him, especially his friends. Ahn Su-ho is often seen as carefree and laid-back, but beneath that demeanor lies a fiercely loyal and protective nature. He is deeply empathetic, often placing the well-being of others before his own. While he may appear aloof at first, Su-ho quickly proves that he takes friendship very seriously and expects the same level of loyalty in return. His sense of justice is personal and intuitive; he acts not out of principle or ideology, but from the heart. Though he isn't interested in school politics or fitting in, Su-ho naturally draws people to him through his charisma and honesty. He dislikes bullies and doesn't hesitate to step in when he sees others being mistreated, which makes him both feared and respected among his peers. He isn't quick to trust, but once someone earns his respect, he becomes an unshakable ally. Despite his rough exterior, Su-ho is emotionally perceptive, often picking up on unspoken tensions and helping diffuse them with humor or direct action. He is also deeply protective of his loved ones, willing to go to dangerous lengths for their safety. Ahn Su-ho has a tall and athletic build that reflects his background in mixed martial arts and street fighting. His toned physique is the result of years of physical training, though he doesn't flaunt it—his strength becomes evident only when he fights. He usually sports a relaxed and casual look, often wearing his school uniform slightly undone or paired with a hoodie or jacket, giving off an effortlessly cool vibe. His hair is typically styled in a messy yet stylish cut, sometimes dyed light brown, which adds to his youthful, rebellious charm. Su-ho's facial features are sharp and expressive—his eyes, in particular, stand out for the way they reveal his emotions, from soft concern to burning anger. Despite his rough lifestyle, his skin remains relatively clear, and his overall appearance has a rugged handsomeness that contrasts with his soft-hearted personality. He often has visible bruises or cuts from fights, but he rarely acknowledges them, brushing off concern with a nonchalant attitude. His movements are smooth and confident, and he carries himself with a laid-back swagger that makes him stand out among his classmates. Even when he's relaxed, there's an intensity to the way he observes people and situations, as if he's always on guard and ready to jump in. Su-ho's physical presence plays a big part in his role as a protector—his strength and height make him someone others instinctively look to when danger arises. Whether leaning against a wall with his hands in his pockets or walking into a fight without hesitation, Su-ho's appearance reinforces the image of someone strong, dependable, and quietly heroic.
Relationships:
Yeon Si-eun (best friend)
Yeong-i (friend)
Oh Beom-seok (former friend, archenemy)
Kang Woo-young (enemy)
Lee Jeong-chan (enemy)
Han Tae-hoon (enemy)
Kim Gil-su (enemy)
Jeon Seok-dae (former enemy)
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Oh Beom-seok
Oh Beom-seok is a main character in Weak Hero Class 1. He is a feeble and timid boy who wishes to become strong like the people around him. When he gets intimidated by Jeon Yeong-bin into helping him bully Yeon Si-eun, he later wants to help Yeon Si-eun out of guilt and convinces Ahn Su-ho to come along.
Oh Beom-seok grew up in an orphanage. At some point, he was adopted by politician Oh Jin-won solely to improve his approval rating. However, after his adoption, Beom-seok began suffering physical and emotional abuse from his adoptive father at home.
As a teenager, he attended Mungang School, where he was bullied by other boys. One day after school, Beom-seok was cornered by Kim Hui-jun and other students, who gathered around to assault him with punches and kicks. Hui-jun then warned Beom-seok not to tell his father anything. In June 2022, Beom-seok transferred to Byuksan School. After class, Jeon Young-bin went to Beom-seok's desk to chat. Upon learning about his old school, Jeon Young-bin asked if he knew someone named Han Ji-won, but Beom-seok denied it. In silence, he watched Yeon Si-eun drive Yeong-bin away from his desk. Looking at the boy, Beom-seok noticed a mark around his neck. The next morning, Jeon Young-bin told Beom-seok that one of the teachers wanted to see him. However, it was nothing but a lie to get him out of the classroom. Yeong-bin revealed that he knew about his troubles at Mungang School, and promised to keep the incident secret in exchange for a "favor": sticking a fentanyl patch on Yeon Si-eun. During the exam, Beom-seok stuck the patch on the boy's neck, claiming he was swatting away an insect.
When Si-eun began to feel unwell, he stood up and left the room, drawing everyone's attention. Some time later, Si-eun removed the patch from his neck and looked at Beom-seok. He tried to explain himself, but Si-eun stood up and went after Yeong-bin. Beom-seok watched Si-eun attack Yeong-bin from his seat. The following day, during lunch, he overheard some students talking about Si-eun and Ahn Su-ho. After school, Beom-seok approached Si-eun and tried to strike up a conversation about which prep school he should attend, but Si-eun saw through his intentions and made it clear he would not accept his apology. After seeing Si-eun being taken away by Yeong-bin and a group of students, Beom-seok ran to the classroom and woke Su-ho up. He explained what was happening, but Su-ho pointed out they weren't close enough for him to go save Si-eun. Beom-seok then offered money for him to go help. Su-ho got up and hurried him along to go after Si-eun. Beom-seok saved Si-eun when Yeong-bin tried to attack him with a glass bottle. After the fight, Su-ho invited the two of them to get something to eat. When they arrived at the restaurant, Beom-seok told Si-eun he would pay for the meal. Su-ho then asked them to help him run the restaurant, since he had arrived late to work. Beom-seok helped the owner in the kitchen and received praise from her. He sat down with Su-ho and Si-eun and was invited to come back to the restaurant more often. That night, Beom-seok followed Su-ho on a social media platform. He looked through his posts before typing a message asking him to follow back, but ended up changing his mind and deleted the text. On the weekend, Beom-seok went to a snooker club with Su-ho and Si-eun, who had been tricked with the promise that they were going to work on a school project together. After spending the day at the snooker club, Su-ho invited the group to go out. Beom-seok accepted, but Si-eun declined because he wanted to study. Beom-seok tried to convince him to come by saying he would pay for everything, but Si-eun remained firm in his decision. Beom-seok then went out with Su-ho. The next morning, Beom-seok was playing a mobile game with Su-ho when Yeong-bin appeared, asking to speak with the group. He begged for Si-eun and Beom-seok to speak with his lawyer. Even though Su-ho didn't believe the teenager's act, Beom-seok told Si-eun they should at least consider his request. After school, Beom-seok, Si-eun, and Su-ho followed Yeong-bin to a parking lot, where Kim Gil-soo demanded ₩15 million from the trio within three days. Beom-seok helped Su-ho after he was cut by Gil-su for standing up to him. On the third day, Beom-seok revealed to Si-eun and Su-ho that he had managed to get the ₩15 million. When questioned, he lied and said he had sold his father's watch. However, Su-ho refused his money and suggested they report Gil-su to the police. Si-eun came up with a plan to lead the police to Gil-su's hideout so they could arrest him. Su-ho decided to go with Gil-su to the hideout. Worried, Beom-seok argued with Si-eun for letting him put himself at risk alone. Beom-seok went to Gil-su's hideout after Yeong-i revealed its location. Upon arriving, he found Gil-su fleeing with Su-ho, who was unconscious. He then handed over the money and demanded they return his friend in exchange. Beom-seok was tied up and taken to an abandoned amusement park. When Su-ho woke up, Beom-seok was relieved to see he was alright. Su-ho asked Beom-seok what he was doing there, and he replied that he had been worried and decided to go after him. Si-eun appeared, making Gil-su nervous by suggesting that the police would arrive soon. Gil-su then released Beom-seok and Su-ho. However, Gil-su and his group returned after finding Si-eun's phone, which was playing a police siren sound. Beom-seok then watched the fight unfold. At the police station, his father's assistant told Beom-seok and Si-eun that no report would be filed. When left alone with the suited man, Beom-seok asked whether he had spoken with his father. The man ignored the question and told him to get up. Beom-seok was taken to another room, where the man instructed him to beat Gil-su without any consequences. Gil-su taunted Beom-seok, saying that Su-ho and Si-eun saw him as nothing more than a "doormat" and insisted he hit him. However, Beom-seok ignored the taunts and left the room. While getting ready, Beom-seok visited Su-ho's social media profile again. He noticed Su-ho was following Yeong-i and clicked on her profile, seeing countless photos with Su-ho and Si-eun. On the way to the restaurant, Beom-seok hung back behind Su-ho and Yeong-i as they talked about what to do for Su-ho's birthday. He tried to join the conversation and asked when the celebration would be, which turned out to be on Saturday. At the restaurant, Yeong-i pulled Su-ho to a table while Beom-seok stayed behind to place the order. He watched the two of them chat with Si-eun when he arrived, staring at them. That night, the group went to a karaoke bar. Beom-seok, clearly irritated, watched Su-ho sing with Yeong-i. He stepped out of the room to grab some drinks when bullies from his old school spotted him. Beom-seok hid in a room and waited for them to move away before leaving. When he returned to his group, Beom-seok found Yeong-i talking on his phone with the bullies. He quickly snatched the phone from her hand and ended the call, calling her "crazy" for answering his phone without permission. Yeong-i dared Beom-seok to hit her — an offer that tempted him — but Su-ho stepped in and asked Beom-seok to stop. After the two of them left, the bullies showed up in the room and started taunting Beom-seok, but Si-eun told them to talk another time. When the group left, Si-eun asked who they were, but Beom-seok replied they were "nobody." The next day, Beom-seok received a visit from Si-eun and Su-ho. When they complimented his family, Beom-seok clarified that he was adopted. He then explained what had happened the night of the karaoke. Su-ho assured him he would make the bullies apologize. That night, Beom-seok, Su-ho, and Si-eun returned to the karaoke bar where the bullies were. Su-ho ordered them to apologize to Beom-seok. Despite the bully apologizing, Beom-seok didn't believe his words and instead asked to be allowed to hit him. Beom-seok slapped the boy but received a slap back. Furious, Beom-seok grabbed a microphone and lunged at the boy, only to be stopped by Su-ho, who dragged him out of the room. Outside, Beom-seok accused Su-ho of never truly seeing him as a friend, but only as a "lapdog" who should follow his orders. Su-ho pointed out that he had skipped work to help him, but Beom-seok brushed off the gesture and asked if he should pay him for it. Su-ho pinned Beom-seok against the wall, demanding he repeat himself, but Si-eun made him let go. Beom-seok walked away, but Si-eun followed and asked if he was alright. Beom-seok was chased by his former bullies. While fleeing, he ran into other students from his class at Byuksan. The group then took the bullies to a parking lot and beat them up while Beom-seok watched. When one of the bullies threatened Beom-seok, he lunged at him and attacked him with kicks. Tae-hoon encouraged Beom-seok to keep going. Afterward, Beom-seok went to a nightclub with Tae-hun and the other classmates. He picked up his phone and unfollowed Su-ho on social media. He then took the initiative and went over to a table where some women were sitting, inviting them to drink with his group. Hungover, Beom-seok went to school the next day. Si-eun asked if he had been drinking, but he ignored him and went over to Tae-hoon and the others, reminiscing about what had happened the night before. During a class, Si-eun pulled Beom-seok aside to talk. He suggested they speak with Su-ho so they could patch things up. However, Beom-seok rejected the idea, pointing out that Su-ho always looked down on him. That night, Beom-seok went out with Tae-hoon and Jung-chan again. At the nightclub, he ran into Yeong-bin and met Kang Woo-yeong. The next day, while smoking with Jung-chan and the others, Beom-seok mentioned that one of the girls wanted to meet him. Back in the classroom, Beom-seok gathered his things and moved to sit at the back with the other group. During lunch, Beom-seok and the other delinquents tried to cut the line to get a meal. However, Su-ho called the group out, demanding they go to the back of the line. While the others complied, Beom-seok challenged Su-ho. His former friend gave him one last chance, but Beom-seok kept refusing. Su-ho then shoved Beom-seok to the ground. He got up and left the cafeteria with the delinquents. While listening to the group complain about Su-ho, Beom-seok volunteered to pay someone to "take care of" Su-ho. After school, Beom-seok met with Woo-yeong and offered him ₩1 million to attack Su-ho on his birthday. To give Woo-yeong an advantage, they cut the brakes on Su-ho's motorcycle, causing him to injure his leg. At school the next morning, Beom-seok stared at Su-ho's injured leg. As he was leaving the room, Su-ho caught Beom-seok's attention and told him to forget about him. On Su-ho's birthday, Beom-seok tried to get in touch with him, but his calls weren't going through. He sent Yeong-i a message asking to meet, under the pretense of wanting to give Su-ho's gift. The two then met at a café. Yeong-i apologized for the last time they had seen each other and offered to help him patch things up with Su-ho. Beom-seok, however, made it clear he didn't need her help. While walking home, Beom-seok received a call from Si-eun, who asked him to leave Su-ho alone. Upon returning home, Beom-seok spent the night hiding inside a wardrobe. That night, Beom-seok's father entered his room and began beating him, screaming furiously at him. After kicking and cursing at him, the man declared he didn't care about his life and demanded he never again claim to be his son. When he left the room, Beom-seok quietly said he hadn't asked to be adopted. Worn out, Beom-seok decided to leave home. His father's secretary tried to stop him, but Beom-seok pushed him aside. He got into a taxi and asked the driver to get him out of there as fast as possible. During the ride, Beom-seok turned his phone on and received a flood of messages, including ones from Su-ho. He called the boy, who demanded he stop hiding. Beom-seok then called Woo-yeong. Beom-seok met with Kang Woo-young and the other delinquents at a gym. When Su-ho arrived, he confronted Beom-seok for having involved Si-eun and Yeong-i. He apologized for having insulted him and demanded he apologize to the two of them, but Beom-seok refused. Su-ho then punched Beom-seok. After Woo-yeong defeated Su-ho in combat, leaving him dazed, Beom-seok climbed into the ring and kicked his body, causing him to lose consciousness. To his shock, Jung-chan announced that Su-ho wasn't breathing. Beom-seok knelt beside Su-ho's body and called out his name, but got no response. His father's assistant led him out of the gym while Beom-seok kept screaming for Su-ho, begging him to wake up. Oh Beom-seok grew up in an orphanage. At some point, he was adopted by politician Oh Jin-won solely to improve his approval rating. However, after his adoption, Beom-seok began suffering physical and emotional abuse from his adoptive father at home.
As a teenager, he attended Mungang School, where he was bullied by other boys. One day after school, Beom-seok was cornered by Kim Hui-jun and other students, who gathered around to assault him with punches and kicks. Hui-jun then warned Beom-seok not to tell his father anything. In June 2022, Beom-seok transferred to Byuksan School. After class, Jeon Young-bin went to Beom-seok's desk to chat. Upon learning about his old school, Jeon Young-bin asked if he knew someone named Han Ji-won, but Beom-seok denied it. In silence, he watched Yeon Si-eun drive Yeong-bin away from his desk. Looking at the boy, Beom-seok noticed a mark around his neck. The next morning, Jeon Young-bin told Beom-seok that one of the teachers wanted to see him. However, it was nothing but a lie to get him out of the classroom. Yeong-bin revealed that he knew about his troubles at Mungang School, and promised to keep the incident secret in exchange for a "favor": sticking a fentanyl patch on Yeon Si-eun. During the exam, Beom-seok stuck the patch on the boy's neck, claiming he was swatting away an insect.
When Si-eun began to feel unwell, he stood up and left the room, drawing everyone's attention. Some time later, Si-eun removed the patch from his neck and looked at Beom-seok. He tried to explain himself, but Si-eun stood up and went after Yeong-bin. Beom-seok watched Si-eun attack Yeong-bin from his seat. The following day, during lunch, he overheard some students talking about Si-eun and Ahn Su-ho. After school, Beom-seok approached Si-eun and tried to strike up a conversation about which prep school he should attend, but Si-eun saw through his intentions and made it clear he would not accept his apology. After seeing Si-eun being taken away by Yeong-bin and a group of students, Beom-seok ran to the classroom and woke Su-ho up. He explained what was happening, but Su-ho pointed out they weren't close enough for him to go save Si-eun. Beom-seok then offered money for him to go help. Su-ho got up and hurried him along to go after Si-eun. Beom-seok saved Si-eun when Yeong-bin tried to attack him with a glass bottle. After the fight, Su-ho invited the two of them to get something to eat. When they arrived at the restaurant, Beom-seok told Si-eun he would pay for the meal. Su-ho then asked them to help him run the restaurant, since he had arrived late to work. Beom-seok helped the owner in the kitchen and received praise from her. He sat down with Su-ho and Si-eun and was invited to come back to the restaurant more often. That night, Beom-seok followed Su-ho on a social media platform. He looked through his posts before typing a message asking him to follow back, but ended up changing his mind and deleted the text. On the weekend, Beom-seok went to a snooker club with Su-ho and Si-eun, who had been tricked with the promise that they were going to work on a school project together. After spending the day at the snooker club, Su-ho invited the group to go out. Beom-seok accepted, but Si-eun declined because he wanted to study. Beom-seok tried to convince him to come by saying he would pay for everything, but Si-eun remained firm in his decision. Beom-seok then went out with Su-ho. The next morning, Beom-seok was playing a mobile game with Su-ho when Yeong-bin appeared, asking to speak with the group. He begged for Si-eun and Beom-seok to speak with his lawyer. Even though Su-ho didn't believe the teenager's act, Beom-seok told Si-eun they should at least consider his request. After school, Beom-seok, Si-eun, and Su-ho followed Yeong-bin to a parking lot, where Kim Gil-soo demanded ₩15 million from the trio within three days. Beom-seok helped Su-ho after he was cut by Gil-su for standing up to him. On the third day, Beom-seok revealed to Si-eun and Su-ho that he had managed to get the ₩15 million. When questioned, he lied and said he had sold his father's watch. However, Su-ho refused his money and suggested they report Gil-su to the police. Si-eun came up with a plan to lead the police to Gil-su's hideout so they could arrest him. Su-ho decided to go with Gil-su to the hideout. Worried, Beom-seok argued with Si-eun for letting him put himself at risk alone. Beom-seok went to Gil-su's hideout after Yeong-i revealed its location. Upon arriving, he found Gil-su fleeing with Su-ho, who was unconscious. He then handed over the money and demanded they return his friend in exchange. Beom-seok was tied up and taken to an abandoned amusement park. When Su-ho woke up, Beom-seok was relieved to see he was alright. Su-ho asked Beom-seok what he was doing there, and he replied that he had been worried and decided to go after him. Si-eun appeared, making Gil-su nervous by suggesting that the police would arrive soon. Gil-su then released Beom-seok and Su-ho. However, Gil-su and his group returned after finding Si-eun's phone, which was playing a police siren sound. Beom-seok then watched the fight unfold. At the police station, his father's assistant told Beom-seok and Si-eun that no report would be filed. When left alone with the suited man, Beom-seok asked whether he had spoken with his father. The man ignored the question and told him to get up. Beom-seok was taken to another room, where the man instructed him to beat Gil-su without any consequences. Gil-su taunted Beom-seok, saying that Su-ho and Si-eun saw him as nothing more than a "doormat" and insisted he hit him. However, Beom-seok ignored the taunts and left the room. While getting ready, Beom-seok visited Su-ho's social media profile again. He noticed Su-ho was following Yeong-i and clicked on her profile, seeing countless photos with Su-ho and Si-eun. On the way to the restaurant, Beom-seok hung back behind Su-ho and Yeong-i as they talked about what to do for Su-ho's birthday. He tried to join the conversation and asked when the celebration would be, which turned out to be on Saturday. At the restaurant, Yeong-i pulled Su-ho to a table while Beom-seok stayed behind to place the order. He watched the two of them chat with Si-eun when he arrived, staring at them. That night, the group went to a karaoke bar. Beom-seok, clearly irritated, watched Su-ho sing with Yeong-i. He stepped out of the room to grab some drinks when bullies from his old school spotted him. Beom-seok hid in a room and waited for them to move away before leaving. When he returned to his group, Beom-seok found Yeong-i talking on his phone with the bullies. He quickly snatched the phone from her hand and ended the call, calling her "crazy" for answering his phone without permission. Yeong-i dared Beom-seok to hit her — an offer that tempted him — but Su-ho stepped in and asked Beom-seok to stop. After the two of them left, the bullies showed up in the room and started taunting Beom-seok, but Si-eun told them to talk another time. When the group left, Si-eun asked who they were, but Beom-seok replied they were "nobody." The next day, Beom-seok received a visit from Si-eun and Su-ho. When they complimented his family, Beom-seok clarified that he was adopted. He then explained what had happened the night of the karaoke. Su-ho assured him he would make the bullies apologize. That night, Beom-seok, Su-ho, and Si-eun returned to the
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Na Baek-jin
Na Baek-jin is the main antagonist in the Weak Hero Class 2. He is the head of Yeo-Il High School and the leader of the Yeongdeungpo Union. He grew up poor and abused by his stepfather, his teachers, and his classmates.
At some point in the past, Na Baek-jin became friends with Park Hu-min. He was bullied by other boys, but Hu-min would always show up to save him. He would also take Hu-min to his house, where the two would play together. Over time, Hu-min taught Baek-jin how to fight.
A year later, Baek-jin encountered his bullies again and beat them severely. Hu-min witnessed the scene and immediately pulled his friend away, pointing out that the boy could die. Baek-jin, however, didn’t care, arguing that he had learned how to defend himself from him.
During his high school years at Yeoil High School, Baek-jin began working with Choi Chang-hee and founded the Association, using the organization for money laundering. He invited Hu-min to join because he didn’t want to grow apart from his friend, but Hu-min rejected the offer.
Baek-jin also donated the money he earned from the Association to an orphanage. At school, Baek-jin was awarded for his performance on an exam. Later, he went to talk to Choi Hyo-man after he failed to steal phones from Eunjang High School for the Association. The boy announced he would no longer follow his orders and, along with his gang, attacked him. Baek-jin easily defeated them and, while choking Hyo-man, wished him luck on his next attempt. While reviewing his test, Baek-jin was visited by Si-eun, who declared the hospital where Ahn Su-ho was staying off-limits. Baek-jin agreed on the condition that Si-eun stopped associating with Hu-min. Later, Baek-jin met with Geum Seong-je to discuss his plan to attract Hu-min’s attention.
Not long after, Hu-min arrived at Baek-jin’s office as planned. Once again, Baek-jin invited him to join the Association, promising it would become legitimate after graduation. However, Hu-min called him an “idiot” for not understanding why he refused. Baek-jin laughed and asked if Hu-min himself wasn’t the real idiot. Realizing the implication, Hu-min asked what he had done. Baek-jin then asked how Go Hyun-tak was doing. After Seong-je was released from the police, Baek-jin took him to one of the group’s hideouts and asked what he had told authorities. Seong-je claimed he had lied, but realizing Baek-jin didn’t care about him, he announced he was leaving the Association.
The next day, after school, a man got Baek-jin’s attention with a car horn. When he approached, the man said “the director” wanted to see him. Baek-jin brushed it off, saying he’d go later. The men tried to fight him, but he easily defeated them and repeated that he’d go later.
Back at the bowling alley, Baek-jin was told that Chang-hee was waiting in his office. His boss reprimanded him for drawing attention and warned him to be more careful. Later, Baek-jin called Hu-min again and gave him an ultimatum. After Hu-min agreed to work for the Association so his family and friends would be left alone, Baek-jin instructed him to deliver a message to the “Gorilla of Seoknam.”
After completing the task, Hu-min returned to the bowling alley, where Baek-jin welcomed him into the Association. At his hideout, Baek-jin paid Hu-min for his work, saying it was to help his father pay fines. Later, he instructed Hu-min to steal a motorcycle.
That night, Baek-jin met Si-eun at the bowling alley. Si-eun asked about his true intentions regarding the Association and Hu-min. Baek-jin ignored the question and handed over his phone, showing a video of Seo Jun-tae and Hyun-tak searching for incriminating files in his hideout.
After provoking him, Baek-jin said he preferred to “eliminate” every possible variable. Si-eun tried to leave, but Baek-jin blocked the exit. Si-eun attempted to attack him but was disarmed. Hu-min arrived and took Si-eun away.
Baek-jin followed them. After Si-eun left, Hu-min demanded that Baek-jin pretend not to know him and leave him alone. Baek-jin punched him, and Hu-min struck back. They exchanged blows before Hu-min walked away. At the bowling alley, Baek-jin discovered that although he had the file, a page was missing. That night, he spoke with Jun-tae on the phone, mocking him by saying the police could do nothing without evidence. Jun-tae countered by asking why Baek-jin seemed nervous.
Later, Baek-jin met Chang-hee, who complained about police pressure and threatened to kill him if he returned. At school, Baek-jin heard Hu-min challenge him to a final confrontation outside. At the orphanage, Baek-jin was thanked for his donation. When asked how he obtained so much money, he ignored the question and said he would rest before leaving. Back in Seoul, Baek-jin gathered the Association members in an open field. When Eunjang students arrived, he ordered his men to kill them all.
During the fight, Baek-jin defeated many students with ease before facing Hu-min. Hu-min praised his skills but criticized him for using them for crime. Hu-min deliberately targeted Baek-jin’s arm, but despite the pain, Baek-jin defeated him.
After his victory, Baek-jin declared Eunjang part of the Association and challenged anyone who opposed him.
When Si-eun appeared, they fought. Like Hu-min, Si-eun targeted his leg. Baek-jin realized their strategy was to weaken him by attacking different parts of his body. Despite this, he defeated Si-eun as well. However, it was a setup. Before he could react, Hu-min attacked him from behind. Baek-jin fell to the ground, defeated. Na Baek-jin is a powerful fighter with unmatched strength. Even without using force, he has an intimidating presence that prevents others from challenging him. He is a strong, charismatic leader who achieves success. He makes quick decisions, allowing him to complete tasks efficiently. He also has a very high level of academic intelligence, nearly achieving a perfect score on an exam. Trained by Park Hu-min, Baek-jin became an excellent fighter. He could easily defeat opponents physically stronger than him. He demonstrated strong reflexes, skillfully dodging attacks. Even when outnumbered, he defeated Choi Hyo-man and his gang without injury. During the fight against Eunjang, he overwhelmed many students, even breaking one’s hand. His powerful punches left both Yeon Si-eun and Park Hu-min staggering and bleeding. According to Si-eun, Baek-jin is a “model student” at Yeoil High School with multiple scholarships. He also excelled in an exam by the Korean Educational Institute, missing only one question, which earned him recognition from his school.
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Park Hu-min
Park Hu-min, also known as "Baku", is the deuteragonist of Weak Hero. Currently a first year at Eunjang High School. He is considered by many to be the strongest in the school. A talented and powerful fighter, Hu-min is infamous for his physical strength.
As a child, Park Hu-min became friends with Na Baek-jin and constantly saved him from other boys who bullied him. Hu-min also visited Baek-jin's house frequently, where the two would play basketball together.
To help Baek-jin defend himself against his bullies, Hu-min taught him how to fight. One day, Hu-min found Baek-jin beating one of his bullies, who was lying bloody on the ground. Hu-min pulled Baek-jin away, scolding him for his behavior and pointing out that the boy could die. Baek-jin, however, declared that he didn't care.
At some point, Hu-min met and became friends with Go Hyun-tak. When his father drank, Hu-min would spend the night at Hyun-tak's house. According to Hu-min, Hyun-tak ended up getting hurt because of him.
In high school, Baek-jin invited Hu-min to join the Association, but he rejected the offer. Still suspended from school, Hu-min found Choi Hyo-man and his gang tormenting Go Hyun-tak, Seo Jun-tae, and Yeon Si-eun. Playing the opening theme of the anime Slam Dunk, Hu-min asked his friend if he recognized his cosplay. Hyun-tak, however, laughed at his appearance and mocked his hair. Hu-min ignored Hyun-tak's taunts and went after Hyo-man, attacking him with a basketball. With Hyo-man knocked down, Hu-min turned to Si-eun and praised his courage. Hu-min walked up to Hyun-tak and asked if he was alright. However, his friend complained that because of his suspension, the basketball team wouldn't be able to enter the tournament. Hu-min's panic was interrupted when one of the delinquents tried to attack him. Hu-min grabbed the boy's fist and twisted it. He calmly approached another boy and applied pressure to his shoulder, making him scream in pain. He then threw both boys against another who tried to advance on him. With the group defeated, Hu-min scolded them for bullying while wearing the school uniform. Upon hearing Hyun-tak apologizing to Si-eun, Hu-min tried to make him apologize more politely, but Si-eun turned his back and walked away. At Eunjang School, Hu-min greeted students as he walked down the hallways. In the classroom, he listened to Hyun-tak complain about their team having to play against a school he considered "bad." Hu-min pointed out that a professional plays against everyone, regardless of their skills on the court. Si-eun appeared with Jun-tae, calling them to the principal's office. Hu-min and the group learned they would be required to do volunteer work to make up for the fight they had been involved in. After leaving the room, Si-eun asked Hu-min to stop touching his head. He ignored the warning and cheerfully ruffled Si-eun's hair.
The next day, Hu-min flirted with some girls at the Seoul National Museum of History. During lunch, he boasted about having gotten one of their numbers. However, upon calling the number, Hu-min discovered it didn't exist. During a game with Hyun-tak, some chopsticks fell on Si-eun, staining his clothes. Hu-min asked Jun-tae to move the chopsticks away from Si-eun, pointing out that he liked to "stab people with them." While heading to the bathroom, Hu-min bumped into Geum Seong-je, who revealed he had met "a strange person." Hu-min then found Si-eun and asked if he had met any strange person. Before the boy could answer, Hu-min apologized for what had happened.
After the volunteer work ended, Hu-min took Hyun-tak and Jun-tae to his father's restaurant. While talking about Si-eun, Hu-min called him and asked if he had gotten home. While exercising, Hu-min received a call from the police informing him of an incident involving his father. He ran to the restaurant, where he found him in an argument. Before some boys got into the police car, one of them told Hu-min that Na Baek-jin "missed him." Immediately, Hu-min answered a call from Baek-jin, who arranged a meeting for the next day. At Eunjang, Si-eun revealed to the group that he had met Baek-jin and told them to leave him alone. Hu-min accepted his orders without question. After school, Hu-min said goodbye to the group, claiming he had a "date with a girl." He then went to Baek-jin's bowling alley. His old friend once again invited him to join the Association, an offer Hu-min rejected once more, declaring that he "hated" him and his criminal activities. Baek-jin then asked how Hyun-tak was doing. Hu-min left Baek-jin's office but was confronted by some Association members outside. Despite being alone, Hu-min managed to defeat them with ease.
Hu-min was able to find the rooftop where his friends had been taken by Seong-je. He saw Si-eun lying on the ground, bloodied, and ran to his side, asking if he was alright. The boy called him "Su-ho" before passing out. Hu-min took Si-eun to his home, where he tended to the boy's injuries. Curious, Si-eun asked Hu-min about his relationship with Baek-jin. He then revealed they were childhood friends. Hu-min called Baek-jin and admitted he had lost.
The next morning, Hu-min and his group waited for Si-eun at the entrance of Eunjang. After spending the day together, Hu-min received another call from the police informing him that his father had been arrested. At the police station, Hu-min received a message from Baek-jin demanding he join the Association so that his friends and father would be left alone. When the same boys from the night before left the police station, Hu-min went after them and beat them up. As the days passed, Hu-min began missing school. When questioned by his father, Hu-min claimed he was sick. Furious, his father called him a "little piece of trash" and complained about the cost of supporting him. Hu-min stood up and yelled back at his father, but chose to leave the house. While walking through Seoul, he received a call from Baek-jin, who gave him an ultimatum.
As proof of his loyalty, Hu-min was instructed to find the "Seoknam Gorilla" and deliver a message from Baek-jin. After beating the boy up, he handed over his phone so he could talk to Baek-jin. After completing his task, Hu-min went to the bowling alley, where Baek-jin welcomed him into the Association. Gathered with other Association members, Hu-min was provoked by a boy. Despite taking two punches to the face, Hu-min remained motionless. Then, with a single blow, Hu-min left his opponent dazed. He began beating him before being restrained by the other members. Hu-min met with Baek-jin, who handed over the payment for his first activity for the organization. Disappointed, Hu-min asked his old friend how he had ended up that way before leaving.
At home, Hu-min was instructed to steal a motorcycle. That night, he went to the bowling alley, where he found Si-eun talking with Baek-jin. To his shock, Hu-min discovered that Jun-tae and Hyun-tak were going to be attacked by the Association. He asked Si-eun to go help them, assuring him he would be fine. Baek-jin appeared asking about the motorcycle, but Hu-min revealed he hadn't stolen it. He announced he was leaving the Association and demanded they never come after him again. Both threw punches that sent each other staggering back. Hu-min arrived at Daesung Motors just in time to save Jun-tae and Hyun-tak from Do Seong-mok and Baek Dong-ha. When an Association member riding a motorcycle hit him in the head, Hu-min punched the individual's helmet, shattering the visor and knocking him off the vehicle. Upon learning that Si-eun had been hospitalized, Hu-min, Jun-tae, and Hyun-tak rushed to the hospital to visit him.
At the hospital, Si-eun's mother asked Hu-min and his friends to leave and let her son rest. The next day, Hu-min sat down to have lunch with his father. The man revealed that Si-eun had visited him the day before and criticized him for being a terrible father. Jin-cheol praised Hu-min's friends, which made Hu-min start to cry out of guilt over Si-eun's hospitalization. That night, Hu-min and Hyun-tak were informed by Seong-je that Jun-tae was in danger. The two went to Daesung Motors, where they found him injured and unconscious. Before leaving, Hu-min thanked Seong-je for saving Jun-tae. The next morning, Hu-min went to Yeoil School and challenged Baek-jin to a fight, demanding that if Eunjang won, the Association would be disbanded. He then called Hyun-tak and informed him about the event.
That night, Hu-min visited Si-eun again. Si-eun's mother apologized for her attitude the last time they had seen each other, explaining that she had been on edge. When Si-eun woke up, his mother left to call the doctor. Si-eun tried to get up, but Hu-min suggested he stay lying down. Si-eun, however, insisted he let him go see Su-ho. The next day, Hu-min and the students of Eunjang School met with the Association members at the designated location. Before the fight began, Hu-min asked Hyun-tak to leave Baek-jin to him. During the fight, Hu-min took on numerous Association members before reaching Baek-jin. As planned by Si-eun, Hu-min struck Baek-jin's arm repeatedly. The two managed to land solid punches on each other. Despite Hu-min's efforts to stay on his feet, he eventually went down. Some time later, Si-eun appeared and faced Baek-jin, this time targeting his leg. He managed to bring Baek-jin down, giving Hu-min enough time to get up and land another punch in Baek-jin's face. With the Association's leader defeated on the ground, Hu-min announced that the fight was over. A few days later, Hu-min, Jun-tae, and Hyun-tak followed Si-eun to the hospital after Su-ho woke up from his coma. Park Hu-min is a spontaneous and extroverted person who never backs down from a good fight. He is deeply compassionate, cares greatly about his friends, and frequently gets angry or worried on their behalf. He never hesitates to help them. When away from conflict, Hu-min displays a very relaxed and carefree attitude, preferring to hang out with his friends rather than focus on studying.
In combat, although Hu-min shows no hesitation, he is not openly cruel or ruthless like other characters. However, when enraged, Hu-min's personality changes drastically, showing little to no mercy and inflicting tremendous damage on his opponents. Park Hu-min proved to be extremely skilled in hand-to-hand combat. He managed to defeat numerous Association members on his own on two separate occasions, despite being outnumbered. When Hu-min was punched by one of the Association members, he remained motionless and showed no sign of discomfort. During his duel against Na Baek-jin, Hu-min, although he lost, managed to leave him injured.
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Yeong-i
Yeong-i is a courageous runaway who got involved with a dangerous gang of delinquents. She is bold and not shy around men, sometimes even joking about dating Yeon Si-eun. After her gang is dissolved, she stays with Ahn Su-ho for a while and starts working part-time at a restaurant. As she becomes closer friends with Si-eun and Su-ho, she becomes the target of Beom-seok's spiraling emotions
Little is known about Yeong-i's past life. However, she was a homeless girl who was taken in by Kim Gil-su. Having no choice, she was forced to participate in his illegal operations.[1] According to Jeon Seok-dae, he was the reason Yeong-i became involved with Gil-su, but the reasons were never explained. Yeong-i was present while Seok-dae forced another minor to sign a contract with Gil-su. Then, the group met Seok-dae's cousin, Jeon Yeong-bin. Upon noticing the boy staring at her, Yeong-i teased him.
Later, Yeong-i accompanied the group of delinquents to Byuksan School, where Seok-dae planned to teach Yeon Si-eun a "lesson" at his cousin's request. The group took Si-eun to an alley, where Seok-dae asked her to watch the entrance. Yeong-i complained about what they were doing and left to fulfill his role, warning him that Gil-su was calling. Yeong-i was present at a meeting with Gil-su, who reprimanded the group for getting beaten up during their shift. After explaining what had happened, Gil-su sarcastically asked if they had been beaten up by the same person they were hired to beat up. Yeong-i looked at Seok-dae and commented that the situation didn't seem so bad. Gil-su ignored her comment and demanded she be quiet. In a store, Yeong-i tore off a piece of lipstick and put it in her bag. Upon seeing Si-eun, she waved shyly. When a sales assistant appeared, Yeong-i went to Si-eun, pretending they were together so she could leave the store. As it was raining outside, Yeong-i insisted that Si-eun take her home since she didn't have an umbrella. Yeong-i took Si-eun to a restaurant, where they ate together. Before leaving, she saved her number on his cell phone.
In a store, Yeong-i took a piece of lipstick and put it in her bag. When she saw Si-eun, she waved, embarrassed. When a sales assistant appeared, Yeong-i went to Si-eun, pretending they were together so she could leave the store. As it was raining outside, Yeong-i insisted that Si-eun take her home, since she didn't have an umbrella. Yeong-i took Si-eun to a restaurant, where they ate together. Before leaving, she saved her number on his cell phone.
Yeong-i was present when Kil-su confronted Si-eun and Ahn Su-ho, demanding that they pay him ₩15 million to cover the treatment for Seok-dae's arm, which “they” had broken. She stared at Si-eun for a few moments before looking away.
Some time later, Yeong-i met with Si-eun at a coffee shop. She explained everything she knew about Gil-su, including his illegal operation and blackmailing of minors. Yeong-i then decided to work with Si-eun to take down Gil-su and free herself from him.
The next day, Yeong-i followed Gil-su and his gang outside Byuksan School, where Si-eun and Su-ho studied. When Su-ho “surrendered” so they could talk business, he suggested they go to his hideout. Yeong-i told Gil-su that some of them should stay behind to wait for Si-eun. Her plan was approved, and Gil-su left her and Seok-dae behind. When Si-eun showed up, she revealed the location of the hideout so that the police could go there. To Yeong-i's shock, Seok-dae handed over his credit card and suggested hiding. While following Seok-dae, she answered a call from Si-eun. Yeong-i asked Si-eun to download a location app to track her. When asked where she was going, she admitted she didn't know, but advised him to bring the police as well. After ending the call, Yeong-i called out to Seok-dae and declared she would go with him. The two went to an abandoned amusement park. Upon arriving, Seok-dae asked her not to say anything. She then watched as Gil-su attacked Seok-dae. Having seen enough, she screamed for him to stop. When Gil-su resumed beating Seok-dae, Yeong-i attacked the man and stole his pocket knife, threatening the other gang members who were trying to advance. After recovering, Gil-su went after Yeong-i. While choking her, he blamed her for making Seok-dae change. She tried to escape with Seok-dae, but he decided to stay and turn himself in. Yeong-i met Si-eun outside the police station and asked about Seok-dae. The two then went to visit Su-ho in the hospital. She asked if she could sleep there, which Su-ho agreed to. He then praised her for her bravery, making Yeong-i laugh. She then sarcastically asked if he had fallen for her. When Su-ho denied it, Yeong-i grabbed Si-eun's arm and declared she was already "his." Su-ho laughed, commenting that they made a "strange little couple." Su-ho invited Yeong-i to go out with him, Si-eun, and Oh Beom-seok. While walking to the restaurant, Yeong-i asked Su-ho what they would do for his birthday, suggesting they rent a hall to celebrate. However, Su-ho chose something simpler. When they arrived at the restaurant, Yeong-i pulled Su-ho to a table while Beom-seok placed the orders. That evening, the group went to a karaoke bar, where Yeong-i and Su-ho sang a duet. After Beom-seok left the room, his phone had started ringing, so Yeong-i answered it and told the caller where they were. When the boy returned, Yeong-i told him his "friends" had called. Beom-seok snatched the phone from Yeong-i's hands and ended the call, yelling at her for going through his things. Yeong-i challenged Beom-seok to hit her, but Su-ho stepped in to try to calm them down. Yeong-i declared she didn't need that "lunatic" and left. While setting things up for Su-ho's birthday, Yeong-i asked Si-eun to take a photo of her in front of balloons that read "HAPPY BIRTHDAY." While waiting for Su-ho to arrive, Beom-seok sent Yeong-i a message asking to meet. She asked Si-eun if they hadn't had a falling out with the boy. When asked why she wanted to know, Yeong-i simply brushed it off and left, claiming she was going to a convenience store.
Yeong-i met Beom-seok at a café, greeting him cheerfully. She apologized for what she had done the night of the karaoke and offered to help him patch things up with Su-ho. However, Beom-seok declined her offer and declared he didn't need her help. Upon spotting Yeong-bin at the back of the establishment, she asked what he was doing there.
Yeong-i was then kidnapped by Beom-seok and a group of delinquents, and taken to a building under construction. While waiting for Su-ho to arrive, Beom-seok asked Yeong-i what she was giving Su-ho in exchange for shelter, but she ignored his question. When Si-eun appeared, the two tried to flee but were chased by the delinquents. While Si-eun dealt with the bullies, Yeong-i managed to escape and call the police. Yeong-i explained everything that happened to the police in detail. However, Si-eun declared that he had injured himself. Surprised, Yeong-i insisted he tell the truth, but Si-eun chose to lie in order to protect Beom-seok. He also asked her not to tell Su-ho anything.
At work, Su-ho confronted Yeong-i about her disappearance the previous night. She apologized and stepped away to continue working. The following day, Su-ho asked Yeong-i which hospital Si-eun was staying at. Realizing he already knew the truth, Yeong-i revealed that he had been discharged. Su-ho said the fault was his and turned to leave. Yeong-i called after him and asked him not to do anything.
That night, Su-ho was late to work. Yeong-i tried calling him but got no answer. She then called Si-eun and revealed that Su-ho knew the truth. She theorized that Su-ho might have gone after Beom-seok. The two searched for Su-ho but couldn't find him anywhere. After learning about Su-ho's condition, Yeong-i, in tears, called Si-eun to inform him of the situation. Upon meeting him at the hospital, Yeong-i broke down again as she said Su-ho would not wake up from his coma. The following day, Yeong-i went to Beom-seok's house. She threw herself in front of his car and confronted him, calling him a coward for being the cause of Su-ho's coma. Beom-seok then got out of the vehicle and accused her of being the one truly responsible for everything that had happened. After that, Yeong-i, overcome with guilt, decided to leave. Yeong-i proved to be a fun-loving girl who enjoys making jokes. She is also honest about her feelings and quite courageous, not being afraid to confront people even if they were physically stronger than her. Despite having helped (against her will) Kim Gil-soo with his illegal operations, she showed great discomfort with what they were doing.
Relationships:
Yeon Si-eun (friend)
Ahn Su-ho (friend)
Jeon Seok-dae (close friend; brother figure)
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Go Hyun-tak
Go Hyun-tak, also known by Gotak is a tritagonist in Weak Hero. He a member of Baku's Gang, often seen as the second in command, and a first-year at Eunjang High School.
At some point, Go Hyun-tak met and became friends with Park Hu-min. When Hu-min's father drank, the boy would spend the night at Hyun-tak's house. Hyun-tak was also a professional taekwondo athlete. However, because of his friendship with Hu-min, Hyun-tak became a target of the Union. One night, he was ambushed and attacked by Geum Seong-je, who left him seriously injured. The attack ended up tearing the ligament in Hyun-tak's knee, preventing him from competing again. While listening to his teammates talk about Hu-min's suspension, Hyun-tak, frustrated that they couldn't participate in the tournament, decided to appeal to the teacher to reverse the decision. On the way, he heard some students saying that Choi Hyo-man had "gone crazy." Curious, Hyun-tak followed the other students. He found Hyo-man beating Yeon Si-eun and called the bully out, challenging him to a fight. Hyo-man, however, made up an excuse and left. Hyun-tak told Si-eun he could thank him, but was ignored. As Si-eun left the room with Seo Jun-tae, Hyun-tak sarcastically asked if he was "rude or just a little punk" for not thanking him. Si-eun then coldly thanked him for the help. Later, Hyun-tak overheard some students talking about rumors regarding Si-eun, but he didn't believe what he was told. The next morning, Hyun-tak watched Hyo-man talk to Si-eun. Curious, he questioned the delinquent's intentions. The boy taunted Hyun-tak and said he was looking for help to kill him and Hu-min. Furious, Hyun-tak tried to attack Hyo-man but was held back by the other basketball team members.
Some time later, a student from Eunjang School told Hyun-tak that Si-eun wanted to fight him. After school, Hyun-tak found Si-eun and Jun-tae, confronting him about the apparent challenge. Jun-tae tried to explain the misunderstanding, but Hyun-tak threatened to kill him. Hyun-tak taunted Si-eun for having "ruined" a boy's life. Angered, Si-eun went after Hyun-tak and the two began to fight. Hyun-tak dodged Si-eun's attacks as he tried to stab him with a pen. Eventually, Hyun-tak disarmed Si-eun, but he recovered the pen and slashed his jacket. Then, Hyo-man and his gang appeared and attacked both of them. Hyun-tak ended up falling to the ground, but Hu-min appeared and attacked Hyo-man. After mocking Hu-min's appearance, Hyun-tak complained about his suspension, revealing that the team had been banned from participating in the basketball tournament. After Hu-min drove off Hyo-man and his gang, Hyun-tak apologized to Si-eun, acknowledging that he had misread the entire situation. Unsatisfied with Hyun-tak's apology, Hu-min made him bow. He straightened up and scolded Hu-min, who laughed at the situation.
The next morning, Hyun-tak mocked Hu-min's IQ test score. The two were interrupted by Si-eun and Jun-tae, who called them to the principal's office. The teacher informed them they would be doing volunteer work to make up for the fight. Angered, Hyun-tak accused Hyo-man and his gang of being the ones mainly at fault, but the teacher cut him off and said he didn't care. As they left the room, Hyun-tak apologized to Si-eun once more.
During the volunteer work, Hyun-tak watched Hu-min flirt with some girls. During lunch, Hyun-tak mocked Hu-min again, this time teasing him about the nonexistent number he had gotten from one of the girls. After the volunteer work ended, Hu-min invited them to have dinner together, offering to pay for the meal. Hyun-tak, however, assured Si-eun and Jun-tae that Hu-min wouldn't actually do it.
During dinner at Hu-min's father's restaurant, Hyun-tak told his friend about Jun-tae's good deed of returning the stolen phones. At school, Si-eun announced to Hyun-tak and the others that he no longer wanted to hang around with them. Offended, Hyun-tak told the boy they hadn't invited him to anything. On the way out, Hyun-tak talked with Jun-tae about Si-eun's decision. Hu-min then said goodbye to the two, saying he was going on a date. Hyun-tak asked if he was going to meet Na Baek-jin, but Hu-min denied it and said it was with a "girl." While walking home, Hyun-tak and Jun-tae were ambushed by Seong-je and some Union members. Hyun-tak instructed Jun-tae to run. Hyun-tak fought Seong-je on a rooftop but, despite his efforts, was defeated and knocked to the ground. At school, Hyun-tak spent time with his friends. While resting, he commented that the Union had gone "quiet." After Hu-min assured them he had "taken care of everything," Hyun-tak asked if he had met with Baek-jin, but he denied it.
Some time later, Hyun-tak and Jun-tae went to Si-eun's house. While Jun-tae played basketball on his own, Hyun-tak talked with Si-eun about his decision to study abroad. He confessed that he had much to thank Si-eun for, as well as to apologize for. Si-eun asked about Hu-min, but Hyun-tak assured him his friend would be fine, pointing out it wouldn't be the first time he had gotten into trouble. Hyun-tak then got up to play with Jun-tae. Worried about Hu-min, Hyun-tak, Si-eun, and Jun-tae went to look for him at his home but couldn't find him there. They looked for Hyo-man at Eunjang School, who provided information about the money laundering operation Baek-jin was involved in. Hyun-tak suggested they do something, but Si-eun assured him he had a plan and asked them not to get into trouble. Going against Si-eun's request, Hyun-tak and Jun-tae went to Daesung Motors. They waited for Hu-min to show up, which never happened. Hyun-tak then decided to break into the building despite Jun-tae's protests. The two found records of motorcycles stolen by the Union, but were cornered by numerous organization members. Hyun-tak managed to defeat some of them, but was no match for Baek Dong-ha and Do Seong-mok. He swung a metal pipe through the air to keep the Union at bay while Jun-tae opened the front door. The two then fled. On Jun-tae's suggestion, the two hid under a truck. Hyun-tak praised Jun-tae for the idea, but it wasn't long before they were found by Dong-ha and Seong-mok. Hyun-tak tried to fight them off but ended up losing once again. Hu-min appeared and saved them, knocking out both delinquents. After the fight, Jun-tae informed the group that Si-eun was in the hospital. Hyun-tak, Hu-min, and Jun-tae rushed to the hospital and saw Si-eun bedridden. Some time later, Si-eun's mother appeared to inform them that her son's condition was stable. She asked the group to leave and let Si-eun rest.
The following night, Hyun-tak and Hu-min were informed by Seong-je that Jun-tae had been captured by the Union. The two rushed to Daesung Motors, where they found him unconscious on a sofa. Hyun-tak carried Jun-tae out, but the boy insisted he could walk. He explained that he had gone to the police to report the Union with the only page of the file he had. Hyun-tak laughed and called him a "little nutcase."
The next morning, Hu-min challenged Baek-jin to a decisive fight. Hyun-tak used the school intercom to recruit allies to join the fight. That night, the three returned to the hospital. Upon seeing Si-eun awake, Hyun-tak asked how he was doing. The day before, Hyun-tak and the group scouted the location of the fight. The next day, the students of Eunjang School made their way to the site. While walking, Hyun-tak asked Jun-tae where Si-eun was. When Jun-tae decided to go after Si-eun, Hyun-tak realized the Union must have done something to him and wished him good luck. During the fight against the Union, Hyun-tak faced Seong-mok. He was knocked down by the boy, who advised him to "stay on the ground." However, Hyun-tak got up and resumed the fight. Hyun-tak managed to defeat Seong-mok with a kick to the face and looked down at his fallen opponent, visibly surprised by his victory. After Hu-min was defeated by Baek-jin, he challenged someone else to face him. Hyun-tak began walking toward Baek-jin, dragging his injured leg, but Si-eun appeared and accepted the challenge in his place.
With the Union disbanded following Baek-jin's defeat, Hyun-tak and his friends continued studying at Eunjang School. A year later, the group attended Baek-jin's funeral, who had died of mysterious causes.
Some time later, Hyun-tak and the group followed Si-eun to the hospital, where they watched him reunite with Ahn Su-ho. Go Hyun-tak is impulsive and hot-tempered. Despite his explosive attitude, Hyun-tak is extremely attentive and caring toward his friends. As a former professional taekwondo athlete, Go Hyun-tak has a remarkable command of martial arts. He is considered the second-best fighter at Eunjang School by the other students, ranking just behind Park Hu-min. Although professionally trained, Hyun-tak proved to have difficulty fighting after his knee ligament was torn, as noted during his fight against Geum Seong-je. Despite this, he remains an excellent fighter, having managed to defeat numerous Union members as well as Do Seong-mok.
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Seo Jun-tae
Seo Jun-tae is a secondary character in Weak Hero Class 2. He is a first year student at Eunjang High School and is in Class 1-5. Jun-tae is Yeon Si-eun's closest friend in Eunjang.
Little is known about Seo Jun-tae's past. However, since he started attending Eunjang School, he became one of the targets of Choi Hyo-man's bullying. Unable to defend himself, Jun-tae was forced to follow Hyo-man's orders, such as stealing the phones of other Eunjang students. While running through the Eunjang hallways with a bag, Jun-tae left drinks and snacks on his bullies' desks. Upon entering Class 2-4, Jun-tae accidentally bumped his bag into Yeon Si-eun. Seeing the boy staring at him, Jun-tae apologized. He continued with the deliveries when one of the bullies called his attention, scolding him for giving him the wrong order. Frightened, Jun-tae apologized and swapped the drink. After noticing that Si-eun was the only student whose phone hadn't been stolen, Jun-tae approached him and asked the brand of his device. Si-eun, however, ignored his question and walked away. Later, Jun-tae showed Hyo-man the records of stolen phones. He ended up being beaten by Hyo-man, who accused Jun-tae of thinking he would lose to Si-eun in a fight. The bully demanded he steal Si-eun's phone by the next day.
At the Eunjang principal's office, one of the teachers handed Jun-tae the bag containing the phones of Class 2-4 students. In the bathroom, Jun-tae momentarily hesitated to steal Si-eun's phone but decided to do it anyway. After the other students recovered their devices, Si-eun asked where his phone was. Jun-tae insisted he didn't know. Feeling guilty, Jun-tae caught up with Si-eun and offered to pay for half of a new device. However, Si-eun interrupted him, revealing he was aware of what he had done and called him a "coward."
The next day, Jun-tae was sexually abused by Hyo-man. After class, Jun-tae admitted to Si-eun that he had stolen his phone and begged him to teach him how to fight so he could become braver. Using Newton's third law as an example, Si-eun refused, saying that "without an action, there will be no reaction." The following morning, Jun-tae decided to return the stolen phones to all the students. In Class 2-4, Jun-tae heard Hyo-man call out his name. The boy used a piece of bread as a mouthguard while being beaten by Hyo-man. Jun-tae fell to the ground, spitting out the blood-soaked bread. Si-eun ended up intervening after Hyo-man tried to attack Jun-tae with a chair. Jun-tae watched both Si-eun and Go Hyun-tak fight Hyo-man, who gave up and left. Si-eun helped Jun-tae to his feet and the two left the room. Rather than going to the infirmary, to avoid an endless cycle of assault, Jun-tae took Si-eun to a "hideout" where he tended to his injuries. After school, Jun-tae caught up with Si-eun and handed him some medicine to help him.
During the meal the next day, Jun-tae was pleased to learn that the medicine had helped Si-eun. Later, Jun-tae was talking with Si-eun when Hyo-man appeared, informing them that Hyun-tak wanted to fight Si-eun. Upon returning inside the building, Jun-tae ended up being taken by some members of Hyo-man's gang for a "new mission." Jun-tae was locked in the closet of the Eunjang basketball team's room and was found by Si-eun.
After school, Jun-tae and Si-eun were confronted by Hyun-tak, who had been manipulated by Hyo-man into believing Si-eun was trying to challenge him to a fight. Jun-tae stepped in to try to explain the situation, but Hyun-tak interrupted him and threatened him. He watched the two of them fight. Jun-tae also watched them fight Hyo-man and his gang, who were confronted by Park Hu-min. After Hu-min drove off Hyo-man and his gang, Jun-tae thanked him and ran after Si-eun. While waiting for a bus, Jun-tae tried to console Si-eun after Hyun-tak taunted him by saying he had "ruined" a boy's life. Si-eun dismissed his efforts and agreed with Hyun-tak's statement.
The next day, Jun-tae and the group were sent to the principal's office after being reported by Hyo-man and his gang. To make up for the fight, they would be required to take part in volunteer work. While watching Hu-min and Hyun-tak play basketball, Jun-tae told Si-eun about the Union. On the weekend, Jun-tae and Si-eun took part in the volunteer work. They dressed up in costumes and took photos with a child. During lunch, Jun-tae listened to Hu-min and Hyun-tak talk about some girls. After the shift ended, Hu-min invited the group to have dinner. Jun-tae accepted the offer and asked Si-eun if he was coming too, but he declined the invitation.
At dinner, Hyun-tak told Hu-min about Jun-tae's good deed. The boy was praised by both of them, receiving compliments for his courage. Jun-tae explained that he had decided to take action after being inspired by Si-eun. At school, Si-eun revealed he had met Na Baek-jin and told the group to leave him alone, to Jun-tae's surprise. The boy ran after Si-eun, pointing out there was no truth to what he had said. Later, Hyun-tak asked Jun-tae if he knew anything about Si-eun. He denied it but claimed he possibly knew the reason Si-eun wanted to distance himself from them.
Jun-tae and Hyun-tak were ambushed by Geum Seong-je and some Union members. Hyun-tak instructed Jun-tae to run. Following the order, Jun-tae fled from the crossroads, being chased by two teenagers. Jun-tae managed to lose them and hid, overhearing them talk about Si-eun. Worried, Jun-tae called Si-eun and asked if he had arrived at his tutoring class safely. However, he ended up being found by the Union members. Jun-tae assured Si-eun he would be fine and insisted he go home. Eventually, Jun-tae was captured by the Union members and taken to a rooftop, where he watched Hyun-tak face Seong-je. Jun-tae tried to help him but was easily subdued. One of the Union members called his efforts to help Hyun-tak "cute" before throwing him to the ground, beside Hyun-tak. Not long after, Si-eun appeared and defeated Seong-je. At school, Jun-tae spent time with his friends. A few days later, he and Hyun-tak went to Si-eun's house. He played basketball on his own while Hyun-tak talked with Si-eun, but eventually Hyun-tak joined the game.
Before Si-eun, who was going to study abroad, boarded a plane, Jun-tae called him and assured him that Su-ho's coma was not his fault. Worried about Hu-min, Jun-tae and the group went to look for him at his home but couldn't find him there. The next day, the group looked for Hyo-man to find out more about Baek-jin's money laundering operation. Hyun-tak wanted to take action, but Si-eun assured him he had a plan and asked them not to do anything. Hyun-tak ignored Si-eun's request and went to Daesung Motors, with Jun-tae tagging along. Scared, Jun-tae suggested they listen to Si-eun, but Hyun-tak insisted on doing something to save Hu-min. The two broke into Daesung Motors to look for the records of the stolen motorcycles. Jun-tae managed to find the file, but just as they were leaving, the two were ambushed and attacked by the Union. Hyun-tak tried to fight them off, but there were too many to defeat alone. He created a distraction that allowed Jun-tae to escape, before Hyun-tak ran after him shortly after. The two hid under some small trucks, but were eventually found and beaten by the Union members, who took the files from Jun-tae. Hu-min appeared and saved them, driving the delinquents off. Jun-tae received a call and informed his friends that Si-eun was in the hospital. The three visited Si-eun, but his mother threw them out. The next day, Jun-tae decided to go to the police with the only page he had managed to steal from the file. However, without sufficient evidence, the authorities claimed they couldn't do anything. After leaving the police station, Jun-tae was captured and beaten by Union members. He spoke with Baek-jin over the phone, demanding he leave his friends alone. As soon as the call ended, the Union members resumed attacking him. Seong-je intervened and saved Jun-tae's life.
Some time later, Hu-min and Hyun-tak appeared and took Jun-tae away. While being carried by Hyun-tak, Jun-tae insisted he could walk and asked to be put down. Hyun-tak asked why he had been captured. Jun-tae then explained what had really happened.
A few days later, Jun-tae and the group visited Si-eun again and were relieved to see him awake. Together with the group, Jun-tae scouted the location of the fight against the Union. On the day of the battle, Hyo-man and the Eunjang delinquents decided to help the other students. Jun-tae made it clear he would not forgive him for the bullying he had suffered at his hands, but acknowledged they needed his help. On the way, Hu-min asked where Si-eun was. Jun-tae discovered he had gone to the bowling alley and decided to go after him.
Upon arriving at the bowling alley, Jun-tae found Si-eun injured. He tried to help him leave, but the "Seoknam Gorilla" appeared to finish his job. He went after the delinquent but was easily shoved to the ground. Jun-tae struck him with a bowling ball and jumped on the boy's back. The "Seoknam Gorilla" managed to shake Jun-tae off by throwing himself against the wall. Finally, Si-eun got up and knocked out the "Seoknam Gorilla." Si-eun wanted to take Jun-tae to the hospital, but he assured him he was fine and insisted he go help Eunjang in the fight.
After the Union was disbanded, Jun-tae and the group attended Baek-jin's funeral, who had died mysteriously following his defeat.
Not long after, Jun-tae, Hu-min, and Hyun-tak followed Si-eun to the hospital to see Ahn Su-ho, who had woken up from his coma. Initially, Seo Jun-tae was a boy who was submissive toward his bullies, following their orders without hesitation to avoid suffering the consequences. After meeting Yeon Si-eun, however, Jun-tae began to grow braver.
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Geum Seong-je
Geum Seong-je is a major antagonist and member of the Union in Weak Hero Class 2. He is a student at Kanghak High School. As Na Baek-jin's right-hand man, Seong-je is known for his brutality and loyalty to the gang. His presence intensifies the conflicts faced by Yeon Si-eun.
He is an "adrenaline junkie" who enjoys fighting for the sake of it, rather than for any other purpose like revenge or justice. Unlike other characters, Seong-je is not motivated by a sense of justice, but rather by the thrill of the fight itself. Seong-je has dark curtain cut hair that is layered, and is of medium length (bangs reaching his eyebrows). He has pale skin, is slim, tall, and wears half-rimmed glasses. Seong-je is described as being playful, not taking things too seriously, and having an air of arrogance and attitude around him. He enjoys inflicting pain, to the point of sadism, and is often shown smiling gleefully when beating up others. Seong-je has incredible physical strength, durability, and speed. He primarily uses Boxing-like punches (in-fighter-out-fighter hybrid), and uses grounded kicks efficiently, rather than flashy ones. He can clinch, grapple minimally, and his style is influenced by street MMA
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Jeon Yeong-bin
Jeon Young-bin, is the cousin of Jeon Seok-dae and an antagonist in Weak Hero Class 1. After feeling humiliated by Yeon Si-eun winning first place in a mathematics competition, Young-bin decided to get his revenge by bullying the boy. However, his constant attacks resulted in a brutal response from Si-eun that landed Young-bin in the hospital. This ultimately led Young-bin to resent Si-eun.
At some point, Jeon Young-bin attended Mungang School, where he became best friends with Han Ji-won. Eventually, he was transferred to Byuksan High School.
After his cousin, Jeon Seok-dae, ran away from home, Young-bin spoke with his mother, who had visited his residence looking for her son. In June 2022, Young-bin was congratulated by the teacher for placing second in the Internal Mathematics Competition. Later, he threw a shoe at Yeon Si-eun's head. Despite having "apologized" for what happened, Si-eun warned Young-bin to watch himself. Noticing that the boy didn't feel intimidated, Young-bin decided to taunt him by saying that everyone considered him an "arrogant" person. Si-eun paid no attention and instead suggested he use his time to study.
The next day, Young-bin and his class exercised during Physical Education class. After class, Si-eun confronted Young-bin, demanding he leave him alone. Han Tae-hun pinned Si-eun against a machine and began choking him. Young-bin approached the boy, who was running out of air, reminding him that he needed to show more "respect" when speaking to people. When Tae-hun hesitated to continue choking him, Young-bin threatened to kill him if he let Si-eun go. Some time later, the teacher appeared and Tae-hun released Si-eun. Young-bin pulled Si-eun close and told the teacher they were just "fooling around." He then whispered in his ear to go along with his story, reminding him that it could jeopardize his chances of getting into college. Si-eun then agreed that they were just "fooling around." The next morning, Young-bin, Lee Jeong-chan, and Han Tae-hun greeted the new student in their class, Oh Beom-seok. Si-eun appeared and drove Young-bin away from his desk, where he had been sitting. Young-bin took a defensive stance, ready to go after Si-eun, but ended up changing his mind after Ahn Su-ho demanded they be quiet.
That night, Young-bin and his friends went to a nightclub. When Jeong-chan brought up his problem with Si-eun, Young-bin complained about the boy, wondering how he could get to him. Jeong-chan then suggested messing with his grades. Not long after, Seok-dae appeared with a package of drugs. Young-bin followed him and asked about the effects of fentanyl. Before leaving, his cousin advised him to be careful. Young-bin then received a message from Ji-won.
The next day, Young-bin took Beom-seok out of the classroom. He revealed that he knew about his bullying at Mungang School and made him a proposition: stay silent in exchange for a "favor." During an exam, Beom-seok then stuck the fentanyl patch on Si-eun, who felt ill and had to go to the bathroom. During the exam review, Si-eun noticed he had gotten only one question wrong. He stood up and attacked Young-bin, tying a curtain around his head to choke him while beating him with a book. With a broken nose, Young-bin was admitted to a hospital. He remained silent while listening to his mother reprimand Si-eun, threatening to transfer him to a reform school. When Si-eun revealed the fentanyl patch, Young-bin protested, asking if he had any proof of his involvement. Si-eun then showed the fentanyl package in Young-bin's bag, leaving the boy speechless. Some time later, Young-bin overheard his mother speaking with the teacher about a transfer to keep the incident quiet.
The next day, Young-bin received a visit from Seok-dae and asked him to get back at Si-eun. Later, Young-bin and Seok-dae, along with a group of delinquents, waited for Si-eun outside Byuksan School. After Si-eun was knocked down by his cousin, Young-bin began stomping on his hand, but was knocked down by Su-ho. While Seok-dae kept Su-ho busy, Young-bin tried to attack Si-eun with a glass bottle, but Beom-seok knocked him down by shoving him with a motorcycle helmet. The two then stopped fighting. Si-eun once again demanded he leave him alone. At the hospital, Young-bin was surprised to see Seok-dae there and asked what had happened to his arm. Kim Gil-soo then turned around, blaming Young-bin for what had happened and asking him for a favor.
The next morning, Young-bin returned to Byuksan to collect his things. He approached Si-eun and asked if they could talk. In another room, Young-bin knelt in front of Si-eun and Beom-seok and begged them to speak with his lawyer. His performance didn't convince Su-ho, but Beom-seok told Si-eun they should accept his request.
Later, Young-bin took Si-eun, Su-ho, and Beom-seok to a parking lot, where Gil-su demanded they pay ₩15 million within three days. Young-bin watched the confrontation from a distance, smiling as he saw Gil-su threaten them. After starting at Jiseong School, Young-bin became friends with Kang Woo-young. One night, he went to a nightclub with his new friends, where he ran into Tae-hun and Jeong-chan again. He also greeted Beom-seok, who had stopped hanging around Si-eun and Su-ho. Curious, Young-bin asked Beom-seok what had led him to distance himself from the two.
A few days later, Young-bin and Woo-yeong met with Beom-seok again, who was asking someone to beat up Su-ho on his birthday. Upon hearing Tae-hun and Jeong-chan mention Woo-yeong's loss to Su-ho in a tournament, Young-bin suggested they should "help him." That night, the trio cut the brakes on Su-ho's motorcycle. On the weekend, Young-bin watched Beom-seok in his unsuccessful attempt to get in touch with Su-ho, suggesting that perhaps he had been blocked. That night, the group kidnapped Yeong-i after she was tricked by Beom-seok. They sent a message to Su-ho, but it was Si-eun who showed up to rescue her. Si-eun managed to knock Young-bin down and grabbed the crowbar he had been using. Frightened, Young-bin crawled backward. After Si-eun was knocked out by Woo-young, Young-bin took advantage of the situation to attack Si-eun with the crowbar while he was at his weakest. After learning what had happened to Si-eun and Yeong-i, Su-ho ambushed Young-bin and attacked him. The boy desperately said he didn't know where Beom-seok was. Eventually, Beom-seok made contact and spoke with Su-ho, who still dislocated Young-bin's fingers, making him scream in pain. At his school, Young-bin noticed the other students in his class staring at him and asked what had happened. Si-eun then appeared and grabbed Young-bin's head, slamming it against his desk before throwing him to the ground. Frightened, Young-bin crawled backward. Si-eun asked where Woo-yeong was, but Young-bin didn't understand his question. Si-eun then used a pen to stab his shoulder, making Young-bin scream in pain. Young-bin insisted he had not been involved in the incident with Su-ho, blaming Beom-seok for everything that had happened. Si-eun declared he didn't care and punched Young-bin. Jeon Young-bin is a cowardly and two-faced person who doesn't care about the well-being of others. His arrogant and conceited attitude generally gets him into trouble with other people. Despite putting on a tough act, Young-bin is a fearful coward who is easily frightened and panics when he loses control of a situation. After Yeon Si-eun threatened to beat him with a crowbar, Young-bin ran to hide behind Kang Woo-yeong, but as soon as Woo-yeong disarmed Si-eun and knocked him down, Young-bin took advantage of the situation to attack him at his most vulnerable.
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Kang Woo-young
Kang Woo-young is a friend of Jeon Young-bin and a recurring character in the Weak Hero Class 1. After losing a fight to Ahn Su-ho during a martial arts competition, Woo-young trained relentlessly to become strong enough. In 2022, he found the opportunity to get his revenge on Su-ho after receiving an offer from Oh Beom-seok. At some point before 2022, Kang Woo-young faced Ahn Su-ho in a martial arts competition but ended up losing to his opponent. In 2022, Woo-young became friends with Jeon Young-bin after he transferred to Jiseong School. At a nightclub, Woo-young was introduced to Oh Beom-seok by Yeong-bin. The next day, Beom-seok met with Woo-yeong to ask him to beat up Su-ho. Before anything else, Woo-yeong asked how much he would receive in return. Beom-seok then offered him ₩1 million. Woo-yeong laughed and accepted the offer, scheduling the fight for Saturday, which would be Su-ho's birthday.
On the weekend, Beom-seok and his group kidnapped Yeong-i to get Su-ho's attention. However, Yeon Si-eun showed up in his place to rescue her. After Si-eun defeated Yeong-bin, Woo-yeong scolded him for having used a weapon. He then beat Si-eun up, calling him a "coward." As he was leaving, Woo-yeong asked Beom-seok for his money, commenting that he would keep his word another day. While training at a gym, Woo-young received a call from Beom-seok. Not long after, Su-ho showed up to confront him. Woo-young challenged Su-ho, who first declared he needed to "warm up." He then beat and defeated some bullies who were at the establishment. Su-ho then climbed into the ring. Woo-young began recording the match, billing the fight as a "rematch."
During the fight, Woo-young kicked Su-ho's injured leg, mocking his injury. He continued attacking him and managed to corner him against the ropes, but Woo-young ended up going down from a hook to the chin. Su-ho moved in to finish him off, but was knocked down by outside interference. Seizing the opportunity, Woo-young kicked Su-ho in the face, sending him to the ground, dazed. Beom-seok and the other bullies climbed into the ring to kick his unconscious body. Woo-young then picked up his phone and stopped the recording.
However, the bullies' attack caused Su-ho to stop breathing, to everyone's shock. Woo-young, Lee Jeong-chan, and Han Tae-hun were instructed by Park to lie about what had happened.
While training at Jiseong School, Woo-yeong dodged a sneak attack from Si-eun, who was seeking revenge for what had happened to Su-ho. Woo-young disarmed Si-eun and once again called him a "coward" for attacking him with a weapon, declaring that he knew how he thought. The two continued fighting, but Si-eun got the upper hand after using a weight to strike Woo-young's foot. Frightened, the boy crawled backward and accused Beom-seok of being responsible for everything. Si-eun paid no attention to his statement and broke Woo-young's foot regardless, making him scream in pain.
Kang Woo-young proved to be a determined person who was focused on his goals, training relentlessly to become a professional UFC fighter. However, he does not have good sportsmanship, having become obsessed with Ahn Su-ho for years after losing to him in a fighting tournament.
Kang Woo-young has dark brown hair, black eyes and fair skin.
