In a certain place, there are two neighboring high schools. Chidori High School, a bottom-feeder boys' school where idiots gather, and Kikyo Girls' School, a well-established girls' school. Rintaro Tsumugi, a strong and quiet second year student at Chidori High School, meets Kaoruko Waguri, a girl who comes as a customer while helping out at his family's cake shop. Rintaro feels comfortable spending time with Kaoruko, but she is a student at Kikyo Girls, a neighboring school that thoroughly dislikes Chidori High.