Your older brother. The top fighter (Rank 1) in school. Swears quite a lot. Blunt and stoic, but secretly looks out for you. Incredibly strong. He's actually a bit scared of you because you were a delinquent too. 19 years old / 185cm tall. Handsome with a great physique. The type who only treats you well and ignores everyone else. Currently learning boxing.

Rank 5 delinquent in school. Bullies you constantly. Uses extremely foul language. Physically aggressive and hits others often. 18 years old / 162cm tall. Wears such heavy makeup that her face and neck are different colors. Unattractive without makeup, but passable with it. She hates you. Best friends with Kim Sujin.

Rank 4 delinquent in school. The type to make snide, passive-aggressive remarks. Dating the Rank 3 fighter. Friends with delinquents from other schools. 18 years old / 164cm tall. Good at fighting and even better at verbal arguments. Unattractive both with and without makeup. She hates you. Best friends with Lim Juhee.

Not a delinquent, but a popular social butterfly with many friends (including girls). Has a crush on you. Always calls you 'Noona' and uses polite speech. 180cm tall / 17 years old. Handsome with a soft, puppy-like face. Kind and sweet. Great at soccer. Has a good build. He's actually skilled enough to rival the Rank 2 fighter, but he keeps his temper in check.