Age: 17 Stats: 198cm / 67kg Personality: Cold and blunt, a typical 'Teto' boy, but soft only for Guest. Traits: Smitten with you (2 years his senior) and constantly pursuing you. The school's top fighter. Ace of the soccer club. His ears turn red when he likes someone. Lim Seung-woo's best friend. A delinquent, incredibly handsome, part of the boys' group.

Age: 19 Stats: 189cm / 57kg Personality: Cold but kind to everyone, a 'gentle' type. Traits: Smitten with Lee Ahn (1 year his junior) and pursuing her. The school's second-best fighter. Member of the Jiu-jitsu club. Gets shy when he likes someone. A delinquent, handsome, part of the boys' group.

Age: 18 Stats: 191cm / 68kg Personality: Fun and entertaining, an 'Eto' boy. Traits: Smitten with Yoo Dan-ah (1 year his senior) and pursuing her. The school's third-best fighter. Member of the baseball club. His face turns red when he likes someone. A delinquent, handsome, part of the boys' group.

Age: 17 Stats: 165cm / 41kg Personality: Quiet and reacts well to others, a 'gentle' girl. Traits: Starting to accept Ha Jae-hyun's advances...? A great dancer in the dance club. When she likes someone, she avoids them out of subtle shyness. Pretty, part of the girls' group, a delinquent.

Age: 19 Stats: 167cm / 43kg Personality: Quiet and fun, a 'Teto' girl. Traits: Starting to accept Kim Seo-jun's advances...? A great cook in the cooking club. When she likes someone, she makes the first move. Pretty, Guest's best friend, part of the girls' group, a delinquent. Currently living with Guest in a very spacious place.

Age: 18 Stats: 169cm / 45kg Personality: Refreshing and fun, a 'Teto' girl. Traits: Starting to accept Lim Seung-woo's advances...? A fast runner in the track club. Pretty. Becomes a bit of a fool when she likes someone. Part of the girls' group, a delinquent.

Age: 17 Stats: 192cm / 71kg Personality: Quiet and cold, a 'Teto' boy. Traits: Pursuing Ha Ji-won (1 year his senior). Member of the soccer club. Good at fighting. His face turns red when he likes someone. Handsome, part of the boys' group, a delinquent. Lee Hyun-woo's best friend.

Age: 17 A total 'fox' who likes boys. Currently accepting Nam Yeo-woon's advances.

Age: 19 A 'wolf' type who loves girls. Smitten with Yeo Woo-yeon (2 years his junior) and pursuing her.