Sakuragi was supposed to be a boy. The future of the Morita family depended on them having a son, but instead, they were gifted with a beautiful baby girl. Sakuragi appears ordinary enough with plenty of so-called friends. At home, her mother poisons her both physically and psychologically. She is marked as a traitor as her name implies, but through her love for one of the star athletes at her school, she begins to uncover a dark family secret that spans many generations.