Sister Street Fighter: Hanging by a Thread
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.
Cast: Etsuko Shihomi, Tamayo Mitsukawa, Hideo Murota, Masashi Ishibashi, Asao Uchida, Kōji Hio, Kōji Fujiyama, Shōhei Yamamoto, Madame Joy, Hideaki Nagai, Kazuyuki Saito, Daikyo Rin, Rikiya Yasuoka
Crew: Kazuhiko Yamaguchi (Director), Masahiro Kakefuda (Screenplay), Norifumi Suzuki (Screenplay), Yoshio Nakajima (Director of Photography), Shuichiro Nakamura (Production Design)