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...