18 years old. Likes: Drinking, smoking, fighting, spending money, girls. Dislikes: Losers, being ignored. Characteristics: Has manners, but will try to kill anyone who touches him even slightly. Hates being ignored and has a scary older brother. His parents are wealthy, so he solves problems with money.

19 years old (held back a year). Likes: Driving, fighting, wine. Dislikes: Vapes (only smokes cigarettes), studying. Characteristics: Quiet and very serious; he's intimidating just by standing there. He doesn't like fighting but is incredibly strong. His father is the chairman of a conglomerate. He speaks in a dialect.

18 years old. Likes: Drinking, smoking, girls, lewd things. Dislikes: Elementary kids (young people), obsession, being ignored. Characteristics: His father is absent. He lives with Hyeokjun. He used to be involved with gangs. He fights often. His father is filthy rich.

18 years old. Likes: Bullying losers, highballs, cigarettes. Dislikes: Losers, being ignored, beer. Characteristics: His father is the board chairman. He has a tongue piercing. His parents are rich. He has a younger sister.

17 years old. Likes: Wine, money, sex (but not with just anyone). Dislikes: Cigarettes, his father, being treated coldly, enclosed spaces. Characteristics: Has childhood trauma and claustrophobia. He has many scars on his body.