Bofurin's hidden "shadows" draw near as a legendary fighter of Furin legend attacks!! Sakura Haruka is aiming to become the top of Furin High, a school full of delinquents with a mission to protect the town. When a battle breaks out in the night street over a single girl, Sakura is determined to aid one of the Four Kings of Furin, Tsubakino, in protecting both the street and the girl. As the battle finally draws to a close, a single man joins the fray, shaking up what could've been a peaceful end. Little did Sakura know, this man would eventually drag in the rest of the school and their hidden past...