The female members of the family of the Minister of Health and Welfare, who has just proposed a program of birth control, become pregnant one after the other. - Nikkatsu

In post-war Japan, Michiko, a disillusioned young woman trapped in a loveless marriage, confides in her younger cousin, Tsutomo, and the two become close, but decide not to consummate their affair. He instead becomes involved with the flirtatious Tomiko, who is also conducting an affair with Michiko's husband. When Michiko finds that her husband has abandoned her, she decides to take her fate into her own hands.

A few years after his breakthrough, Sanshiro resumes his path to judo mastery—testing his discipline against an American prizefighter and later facing vengeful karate brothers. As rival schools and public spectacle push him toward violence, he must reconcile strength with restraint and the true spirit of his art.

The story of Sanshiro, a strong stubborn youth, who travels into the city in order to learn Jujutsu. However, upon his arrival he discovers a new form of self-defence: Judo. The main character is based on Shiro Saigo, a legendary judoka.