Ogawa Kinichi is being hunted by the yakuza of Kameyama Kogyo, and is also noticed by Kanto Masashi, a reckless university student. He takes refuge in an automobile factory where Sasai, a legendary Koshikan alumnus, works, but the students of Kameyama Kogyo start hunting Koshikan. In addition, the detective from the juvenile section, Okochi, also begins to make his move...

Tsubasa, the leader of a motorcycle gang in Chiba, must fight to protect her high school sister.