The Maccherone organization is out to get a priceless national treasure. But when they see third-generation cat-burglar Lupin as an obstacle, countless assassins are sent to kill him on sight and kidnap his girl Fujiko! Can Lupin get the loot before the Maccherone gang, rescue Fujiko, and stay alive at the same time?

Saotome Mondonosuke, "Hatamoto" (direct servant of the shogun), a handsome man with a scar on his forehead in the form of a crescent moon, a favorite of the shogun. He is a master of martial arts, who owns the style of Moroha-ryu seigan-kuzushi (fencing), Yoshin-ryu tai-jutsu (the art of fighting without weapons) and even military science, but in the era of Genroku (1688-1704) all these skills are not in demand, and this brings boredom to Mondonosuke. To dispel boredom, this so-called "bored gentleman" walks around the city, and when he hears about some incident, he rushes to the place and defeats evil with his invincible swordsmanship. Mondonosuke has a 17-year-old sister, Kikuji (Yukiko Kashiwagi), and Kikuji's lover, Kirishima Kyoya (Takao Kataoka), becomes his right hand.

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.

1965 Nikkatsu youth film.