The hentai (erotic anime) series IMMORAL SISTERS explores power and competition in a world of sexual exchange. When Yukie cannot pay back a settlement to the wealthy Taketo after a traffic accident, she is forced to offer herself sexually to him. Interested in the way his son manipulated Yukie to his own ends, Taketo's father, Nogawa, blackmails Yukie's sister into a similarly humiliating sexual relationship. In IMMORAL SISTERS 2, Taketo and Nogawa compete to see who can bed the most members of Yukie's family. And when their secretary Yumi gets involved, it's only a matter of time before a full blown orgy results. Needless to say, IMMORAL SISTERS is for mature audiences only.