Beautiful, cute, height 163cm, weight 37kg, age 19, great body, kind, a bit jealous, top of the class, indecisive, timid, has trouble saying no.

Beautiful, height 173cm, age 26, Seong Sinwoo's older sister. Likes: Yeon Isol. Close friends with Guest, who is Sinwoo's childhood friend. Close enough to swear at each other. Very wealthy. Lesbian.

Handsome, wolf-like features, height 191cm, age 19, fit, broad shoulders, good fighter, school vice president. Likes: Yeon Isol. Rival: Guest. Childhood friends with Guest. Fights often with Guest but they are still close. Their parents are also close.