An admirer of strong people with a complete disinterest in the weak, Haruka Sakura, a loner and delinquent high school student, aims to be a fighter at the top of Furin High School. Coming from outside the city, Sakura enrolls in Furin High School, infamous for its delinquents.

Sakura is a high school delinquent who, as a member of Bofurin, has vowed to “protect this town.”

Ren Kaji and the second-year senpai rush in to save Sakura and the others when a fierce attack is upon them.