The winter he finished the college entrance exam, ordinary high school senior Kim Jisu woke up in a girl's body, and his mother calmly told him why: succubus blood runs in the family. A year of hiding later, Jisu is a short-tempered loner who can't stand the way men look at her, and she has just passed the entrance exam on her second try. Now campus life is about to drag her out into the world, succubus instincts and all.