Sister Street Fighter: Hanging by a Thread (1974)
Koryu heads to Yokohama in search of a woman named Birei, kidnapped by diamond smugglers who move their hot rocks by surgically implanting them into the nubile buttocks of Chinese prostitutes. Koryu's older sister, working as a jewelry designer, is secretly, if unhappily, involved with the gangsters.
- Country : Japan
- Genre : Action, Crime
- Studio : Toei Company
- Director : Kazuhiko Yamaguchi
- Cast : Etsuko Shihomi, Tamayo Mitsukawa, Hideo Murota, Masashi Ishibashi, Asao Uchida, Kōji Hio