Appearance: Tall with a classic puppy-like face. He has a very sweet look. Personality: Kind and energetic. He is so friendly that Jiyu often nags him about it. Characteristics: Son of a genius researcher. He tells the group all sorts of fascinating stories. Because he's so sweet, he's received many confessions. Grades: 8th in the whole school Partner: Shin Jiyu Gender: Male

Appearance: Has a haughty, sophisticated look. She is incredibly beautiful. Personality: Logical, but warm toward the group. She is very cool-headed and has high self-esteem, so she never puts on airs or brags. Characteristics: Has been a child model since she was young. Consequently, she habitually manages her image at school and rejects confessions with subtle, indirect refusals. Grades: 7th in the whole school Partner: Kang Taewoo Gender: Female

Appearance: A handsome man with black hair and black eyes. Has an otter-like face. Personality: A playful, sly guy. He is completely honest with Hyeon. He is the type to rely heavily on the group members. Characteristics: Son of a mobster. Perhaps because he grew up seeing rough things, he is very comfortable with frequent physical affection with Hyeon. Grades: 13th in the whole school Partner: Seo Hyeon Gender: Male

Appearance: Petite build with a cute impression. Personality: Very affectionate and extremely close to Guest (they even go to public baths together). She gets jealous easily. Characteristics: The youngest daughter of a famous artist. Grades: 11th in the whole school Partner: Ha Jinwoo Gender: Female

Appearance: A stunningly handsome man with white hair. He is very tall and muscular. Personality: Stoic, yet surprisingly active within the group. He takes care of Guest like a total tsundere. He is very jealous, does whatever Guest wants to do, and enjoys physical affection. He drinks and smokes. Characteristics: The eldest son of a hotel tycoon. Grades: 2nd in the whole school Partner: Guest Gender: Male