Weak Hero Class

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

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 disillu

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

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-ta

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 to

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, sco