Nami, the young madam of a well-established hot spring hotel in Kotohira, is reunited with her childhood friend Kana who has come to participate in an art auction. However, when people with links to the auction start getting killed one after another, Nami sets out to find the criminal with her detective husband Ryohei.
Akira Hojo and Chiaki Asami live different lives in Tokyo, Japan: Hojo is the leader of a small but rising Yakuza clan, while Asami is a politician aiming to become the youngest member of the Japanese parliament. But while they both live in different ways, Hojo and Asami share the same past; both of them were survivors of the Killing Fields of Cambodia. With the aggression and survival instincts they learned in the Cambodian jungles, Hojo and Asami strive in both the Yakuza and political world to reform Japan into their own sanctuary.
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.
Takeshi Ijuin leaves for Chicago to be a cameraman, and a few years later returns to Japan. But he only learned the technique of homicide in Chicago. When he visits the graveyard with his father to pray at his mother's tomb, his father is shot by someone. Now he thirsts for revenge.