Age: 19 School: Eunjang High Fighting Style: MMA (All-rounder / Striker) Nickname: Guardian Angel — Appearance: Neat and tidy short-cut style with deep, clear black hair and light bangs. He has refreshing eyes visible through the bangs that slightly cover his forehead. He wears a windbreaker with a mix of white, red, and black over his short-sleeved school shirt and a red undershirt. He always keeps his windbreaker unzipped and school buttons undone, paired with long school trousers. — Personality: Diligent yet easygoing without holding grudges, he has a cool and playful personality that avoids boring tasks. He tries to resolve issues quickly by apologizing for his own small mistakes. He has great chemistry with Park Humin and Guest. — Combat Ability: Looking at his overall fights, he doesn't trade blows head-on; instead, he uses superior evasion and concise, clean counters to take down opponents. He seems naturally athletic, being a fast runner as well.

Age: 19 School: Ganghak High -> Eunjang High Fighting Style: Boxing (Infighter) Nickname: Ganghak Tyrant — Appearance: Black hair in a natural wavy parted perm style. His bangs are naturally swept to the sides, slightly revealing his forehead, and the back hair reaches his nape. He wears round, thin-framed metal glasses. Unlike the Eunjang uniform, he attends school in his Ganghak High uniform (red school jacket and long trousers with a black undershirt). — Personality: Rough, uses a lot of profanity, and is good at sarcasm, but he protects his friends incredibly well. — Combat Ability: As his style is boxing, he lands heavy blows, but he doesn't just use boxing; he utilizes other martial arts techniques too. He is skilled in street fighting, using trips, hooks, kicks, and headbutts.

Age: 19 School: Eunjang High Fighting Style: Slugger, Brawler Nickname: Baku — Appearance: A soft comma hair style with calm, deep chestnut hair naturally parted to the sides. He wears the navy Eunjang school jacket and long trousers with a short-sleeved basketball jersey underneath. — Personality: He can be summarized as the undisputed 'cool guy' of Eunjang. He is cheerful, a social butterfly who gets along with everyone, and possesses a kind nature that protects his schoolmates and refuses to compromise with the Union's injustices. He cannot stand unfairness and prevents fights near Eunjang High. — Combat Ability: He has incredible overall durability and top-tier physical strength. He fights by leveraging his strong physical build in close-quarters combat. He is a hard-puncher with high endurance based on his excellent physique.

Age: 19 School: Eunjang High Fighting Style: Taekwondo Nickname: Gotak — Appearance: A shaggy cut style with deep blue-black hair sticking out roughly in all directions. His sharp and haughty eyes are revealed through irregular bangs that completely cover his forehead and eyebrow line. He wears the Eunjang school jacket over a hoodie, paired with long school trousers. — Personality: Basically playful and loyal. However, he has a hot-tempered side where he loses his cool and ignores the situation when angry, though he has strong mental fortitude. — Combat Ability: His main weapon is kicks that can deliver massive damage in one hit. He is very good at controlling distance.

Age: 19 School: Eunjang High Fighting Style: Strategy, Improvised Weapons, Dirty Fighting Nickname: Ahn Suho's Bodyguard(?) — Appearance: A calm, see-through dandy cut style with subtly glossy black hair falling neatly to the eyebrow line. His gaze is visible through the bangs slightly covering his forehead. He wears a hooded jacket over a short-sleeved school shirt and long school trousers. — Personality: On the outside, he seems timid, blunt, and cold, but he is fundamentally considerate of others. He has a personality that can fearlessly defend himself when bullied and possesses great tolerance. He is the top student in the school. — Combat Ability: He fights based on his superior durability, grit, and innate strategic intelligence. He especially utilizes surrounding objects to fight. His main weapon is a ballpoint pen.

Age: 19 School: Eunjang High Nickname: Jjuntae — Appearance: A neat dandy cut style with deep, dark blue-black hair and straight bangs cut neatly above the eyebrows. He wears round glasses with thin black metal frames. He wears the Eunjang school jacket and long trousers. — Personality: He used to be a timid and fearful loner, but after hanging out with the group, he is no longer a loner.