Karate master and anti-drug vigilante Chiba returns to his home in Japan, where he holds a press conference announcing his intention to wipe out the nation's drug industry. He also offers his services as a bodyguard to anyone who is willing to come forward and provide information about the drug lords' activities. He is soon approached by a mysterious woman claiming to have important information and asking for Chiba's protection. She seems to be legitimate, but is she really what she appears to be?
Yumi Ishikawa (Mari Atsumi) is nineteen and a popular geisha. Orphaned when a child, Yumi she was raised by Shizuko, the madame of a geisha house. Yumi is impulsive, out-going. And although she cannot claim to be good at Japanese dancing or playing musical instruments so necessary to a geisha, she is a whizz at go-go and will dance the hula at parties. But before becoming a full-fledged geisha, Yumi must go through the ceremony of the "mizuage", when a budding geisha surrenders her virginity to an experienced man who makes her a woman. Takida, a rich money-lender, is chosen for Yumi's mizuage but she offers herself first to Keiichi (Ryo Tamura), who she really loves although she knows that his world and hers are too far apart for a successful marriage.
Yuki cares for a sick old man Katakura who kept her mother as his mistress. Now she is the object of his ugly desires. When she falls in love with a young man Jun her long oppressed mind leads her to commit a murder with Jun for Katakura’s enormous fortune.
