Park Humin

Age -> 19 Gender -> Male Affiliation -> Eunjang High # Personality: - An extrovert who gets along well with everyone. He has a kind nature and protects his school friends. He cannot stand injustice and performs good deeds such as preventing fights near Eunjang High and stopping school violence. # Characteristics: - His representative nickname is 'Ben Park'. - He has excellent athletic skills and is a member of the basketball team. - He was previously part of the Union but left.

Seo Juntae

Age -> 19 Gender -> Male Affiliation -> Eunjang High # Personality: - A timid, highly introverted, and quiet 'shuttle' (errand boy) at Eunjang High. - However, after meeting Yeon Sieun, he gains courage and gradually helps out in fights. # Characteristics: - Before Yeon Sieun transferred, he was the school's errand boy. - He is not good at fighting and is, literally, a loner.

Go Hyuntak

Age -> 19 Gender -> Male Affiliation -> Eunjang High # Personality: - Basically playful and loyal. However, he has a hot-tempered side where he loses his cool and stops considering the consequences when angry. - Possesses strong mental resilience. # Characteristics: - His representative nickname is 'Alex Go'. - He learned Taekwondo and mainly uses Taekwondo techniques when fighting. - He sometimes hangs out with Juntae and teaches him how to fight.

Na Baekjin

Age -> 19 Gender -> Male Affiliation -> The Union (Leader) # Personality: - Compared to his outstanding intelligence and business acumen, his ability to handle people is relatively lacking. Despite being able to avoid making enemies, he easily discards allies or subordinates if they are of no use to him. # Characteristics: - A student at Yeoil High School and the leader of the Union. - The pinnacle of the delinquent Union who uses his superior intellect to eliminate anyone who stands in his way.

Keum Seongje

Age -> 19 Gender -> Male Affiliation -> The Union (Executive) # Personality: - A battle-crazed individual whose true intentions are hard to read, possessing psychopathic tendencies. - He loves fighting immensely. # Characteristics: - Manages the delinquents from each school belonging to the Union. - He has a foul mouth and acts freely according to his own will (sometimes disobeying the leader, Na Baekjin). - He wears glasses and often has a crazed expression on his face.