Sawaki is released from prison after serving eight years for murdering a rival gang leader in order to obtain the land rights to a landfill for the Kotaki clan and he discovers that the world has changed significantly in that time. The police have forced the disbanding of all yakuza groups in and around Tokyo and most of the former yakuza have moved on to legitimate jobs. Sawaki is disgusted that his yakuza brothers have abandoned their codes of honor and are abusing their newfound power in the legitimate business world to exploit the poor. Sawaki feels partly responsible for making them so powerful and enabling their corruption, so he decides to follow his traditional code of honor to save the residents of a small town where his former lover lives.

Sonny Chiba's first martial arts film, a partially fictionalized judo biopic based on prominent judoka Shiro Saigo (Chiba), the second student of judo founder Jigoro Kano (Naoki Sugiura). Akira Kurosawa’s Sanshiro Sugata is based on the same character and shares some scenes, but Judo for Life focuses more on the martial arts philosophy and training, including scenes depicting how the protagonist learned his famous cat-like landing, coined the term judo, and trained with Tsunejiro Tomita (Hideo Murata). There’s also a slight yakuza film influence. The port street ambush scene is found in both films, but in Judo for Life it’s not Kano but a travelling yakuza that jumps out of the rickshaw. Entertaining and beautifully old fashioned, one does however with there were more shades of gray between good and evil, and a stronger ninkyo-like moral / honour conflict.

1962 Japanese movie

Minami mistakenly kills a gangster associate of his named Brother. Almost as soon as the murder takes place, the body of the deceased man is gone, prompting Minami to conduct a search. While looking, he finds a mysterious isolated hotel where he decides to take a rest. Not only are the front desk clerks a bit strange, but even the ambiance feels unusual. Minami soon realizes he may have gotten more than he bargained for.

Coal miner Isamu Oba is forced to quit his village and leave his mother and siblings behind. Mining buddy Ichiro accompanies him to Tokyo, and the pair enjoy several "fish-out-of-water" sequences before finding employment at a boxing gym with trainer Sawada and his spunky sister Tomoko. The boys also find part time night jobs as roving minstrels in the club district courtesy of benevolent gang boss Asakawa. Of course, they run afoul of boss Karasawa's cruel gang. Karasawa also has it in for Asakawa, and this indirectly throws a spanner into the works as far as Isamu's burgeoning success as a kickboxer. When Asakawa's HQ is burned to the ground by Karasawa's men, Asakawa tries to kill Karasawa - which, of course, leads to his own gruesome death. Isamu goes on the rampage with his sword, wiping out Karasawa and men.

In 1970s-era Japan, three children, Kazuma Kiryu, Akira Nishikiyama, and his younger sister, Yuko Nishikiyama, are raised together in Shintaro Kazama's Sunflower Orphanage. In the summer of 1980, Yumi Sawamura, a young girl whose parents were accidentally shot and killed during a gang's shootout, joins them in the orphanage. Following a yakuza tradition, the honorable Kazama secretly raises orphans whose parents he has directly or indirectly killed. In return, the children love him as a father and he eventually inducts the teenage Kiryu and Nishikiyama into the Dojima Family, a Tojo Clan affiliate of which he is a senior officer.