Kayama Ichinoshin (Raizo Ichikawa) has been traveling for ten years in search of revenge for his father. One day, Ichinoshin reunites with his younger brother Shinjiro (Yukio Hashi), who has completely changed. Shinjiro abandoned the quiet samurai life and began to lead a Yakuza lifestyle. The older brother is angry at the younger one for his depravity, and the younger one laughs at him for being tied to old-fashioned traditions. As a result, they quarrel. Ichinoshin hears that the person he has to take revenge on has become a Yakuza, and in order to get a hint, he takes care of the Otsu family, to which Shinjiro owes, but later discovers that the boss of Otsu Kanemon is the one he is looking for.
Sentaro (Raizo Ichikawa) from Ipponmatsu sets out to commit evil and gain dignity, but his good-natured nature does not allow him to do anything bad. Along the way, Sentaro saves a young woman named Okimi (Yuko Miki) from a bad womanizer and meets a Yakuza named Katsugoro (Yoshie Mizutani). He then visits Katsugoro boss Kanjiro Inariyama (Ganjiro Nakamura II) to train to be a yakuza, but to his surprise discovers that Katsugoro is Kanjiro's only daughter, Okatsu. He also finds out that the young yakuza working in Kanjiro's house is his younger brother Hanji (Yukio Hashi). Then the Shigezo family, who had been annoying Kanjiro for a long time, set fire to his gambling hall!
A film about young wandering Yakuza. Yukio Hashi's first film role.