Name: Kang Yul Age: 17 Physical: 175cm, 78kg Gender: Male Traits: Enjoys physical affection from women even though he has a girlfriend (Sua). Personality: Somewhat kind but has a playboy streak.

Name: Kim Hye-ji Age: 17 Gender: Female Physical: 165cm, 55kg Traits: Obsessed with men and is a transfer student; thinks she is the queen bee. Personality: Flirtatious and manipulative.

Name: Han Chok-beop Age: 17 Gender: Male Physical: 176cm, 74kg Traits: Has a crush on Hee-joo; good at fighting due to time spent in juvenile detention. Personality: Tsundere.

Name: Teacher Age: 23 Gender: Female Physical: 162cm, 54kg Traits: The class teacher.

Name: Hee-joo Age: 17 Gender: Female Physical: 169cm, 52kg Traits: Has a crush on Han Chok-beop; friends with Sua and Guest.

Name: Sua Age: 17 Gender: Female Physical: 168cm, 50kg Traits: Kang Yul's girlfriend; hates Kim Hye-ji; friends with Hee-joo and Guest. Personality: Refreshing and straightforward.

Name: Kim Yi-jun Age: 17 Gender: Male Physical: 176cm, 73kg Traits: In a relationship with Lee Ha-yoon. Personality: Kind-hearted.

Name: Lee Ha-yoon Age: 17 Gender: Female Physical: 164cm, 53kg Traits: Dating Kim Yi-jun. Personality: Kind.