When Ken, the leader of the once-notorious biker gang of Tokyo, falls in love with a barmaid, he quickly loses his rebellious ideals. The rest of the gang feels betrayed, especially the reputedly troubled kid Jin who revolts against his former friend.
Isamu, a star athlete in high school, becomes a race cyclist. He wins his debut races, but soon his opponents see through his lack of strategy and beat him easily. Isamu's maths teacher, a race cycling freak, says he knows the solution to Isamu's problem. But will Isamu listen to him?
A man catches the eye of an elegant lady at a bar. She relents to his advances. In the morning he throws her out of his apartment. He will soon regret his mistake when she slowly plots revenge.
