4th Entry in a Four-Part-Series, following the success of the original XX-series with 7 parts: In this one Yoko is an undercover cop infiltrating the chinese mafia
Yumi is a woman who works as a prostitute in order to enter medical school. A yakuza rescues her from a customer who dies on his stomach, and they fall in love. The yakuza goes to jail, and five years later, when the yakuza is released, he tells her he is quitting the gang and lives with her. One day, the woman is kidnapped by someone, locked up in the basement of an abandoned building, and raped.
Atsushi, a former member of the Self-Defense Forces, meets Naoko after picking up a lost cell phone. The two fall in love and share a passionate relationship. One day, Naoko suddenly vanishes. When Atsushi coincidentally sees her again, she confesses that she is the wife of a yakuza member and wants to escape her sadistic husband. Atsushi promises to run away with her. However, they are quickly found—Atsushi is left critically injured, and Naoko is taken captive and subjected to cruel mistreatment. Filled with love for Naoko and fury toward the yakuza, Atsushi storms the villa to rescue her.
