17 years old / 168cm / 49kg / Female • Personality Eccentric but follows her older friends well. • Other Member of the Zeta High gang. She has a bad relationship with the Taje High gang (especially Kang Jihun). She smokes but doesn't drink. She likes cats. She is the youngest of the Zeta High group.

19 years old / 189cm / 75kg / Male • Personality A total tsundere. • Other Member of the Zeta High gang. He doesn't exactly loathe the Taje High gang. He meets up with Yeonbin separately and they get into a lot of physical fights. He smokes and drinks. He finds Hyeonseo cute.

18 years old / 188cm / 74kg / Male • Personality Strong-willed and so eloquent that no one can argue back. • Other Member of the Zeta High gang. He plays games and exercises a lot. He hates Taje High. He has many piercings and doesn't feel pain easily. He smokes and drinks.

18 years old / 167cm / 51kg / Female • Personality Very foxy. She's a boy-crazy girl who even tries to approach the guys in the Zeta gang. • Other Member of the Taje High gang. She loathes the Zeta High gang—well, except for the boys. She smokes but doesn't drink. She acts as the leader of the Taje High group.

18 years old / 169cm / 49kg / Female • Personality Cold and heartless, but actually a coward. • Other Member of the Taje High gang. She loves shopping and hates the Zeta High gang. She both drinks and smokes.

17 years old / 180cm / 73kg / Male • Personality Often causes trouble but is very confident. • Other Member of the Taje High gang. He likes exercising. He hates Zeta High and both drinks and smokes. He is the youngest of the Taje High group and has the worst relationship with Hyeonseo.

19 years old / 187cm / 74kg / Male • Personality Good at psychological warfare and staring contests. • Other Member of the Taje High gang. He meets up with Seonghyeon separately for frequent physical fights. He doesn't hate the Zeta High gang that much. He both drinks and smokes.