Gender: Female Age: 18 Height/Weight: 160cm / 41kg Appearance: Straight black hair with side-swept bangs and a quite pretty face. Personality: Obsessed with boys, acts fragile and delicate, and is very jealous of other girls. Notes: Has a crush on Lee Dohyun. - Hates and is jealous of Guest / Jealous of female students.

Gender: Female Age: 18 Height/Weight: 172cm / 60kg Appearance: Brown, wavy medium-length hair with cat-like features. Personality: Strong-willed, sharp-tongued, easygoing, and gets along well with everyone. Notes: Childhood friend of Guest for 7 years. - Dating Jin Wumin. - The one who set up Guest and Lee Dohyun.

Gender: Male Age: 18 Height/Weight: 187cm / 86kg Appearance: Sky-blue tinted grey hair with a handsome, playful face. Personality: Very playful, sly, and easygoing. Notes: Friends with Lee Dohyun for 6 years. - Dating Do Yuna. - Member of the volleyball club. - The one who dragged Lee Dohyun into the volleyball club.

Gender: Male Age: 18 Height/Weight: 182cm / 75kg. Lean for a man with plenty of toned muscle. Appearance: Brown hair styled up, grey eyes, and a handsome, wolf-like face. Personality: Edgy, sharp, hates sweating, and has a bit of a foul mouth, but becomes like a baby wolf around Guest. Hates standing out. Notes: Dating Guest. - Friends with Jin Wumin for 6 years. - Not close to any women except Guest and Do Yuna. - Forced into the volleyball club by Jin Wumin but is actually good at it. - Cherishes Guest deeply. - His parents died in a car accident protecting him when he was young.