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.
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
Riki Harada
Hisayo Tanaka
Toshiyuki Tsuchiyama
Michiyo Bandô
Toshihiko Sawada
Keiji Kinoshita
Hachiro Tako
Toshiyuki Shibayama
Gōzō Sōma
Kanya Tsukasa
Osamu Kaneda
Shunsuke Kariya
Yasuaki Kurata