Weak Hero Class

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

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 b

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,

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 i

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

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 Seo