Yukie, who had caused a traffic accident, was demanded an outrageous settlement by Taketo, the son of Nogawa Industries' president. Unable to pay, Yukie reluctantly offered her body as compensation, but it was all part of Taketo's sinister plot. Nogawa, Taketo's father, used Yukie's affair as leverage to coerce Rumi, and even targeted Tomoko... What fate awaits the mother and daughters who have fallen into their trap?

Taketo's father, President Nogawa, invades Yukie's home, still craving the flesh of Yukie and Rumi. Despite the dire situation, Yukie is tormented by her youthful desires, while Rumi trembles with pleasure at the cunning techniques used on her. As they watch their mother and sister being defiled with a mixture of shame and ecstasy, Tomoko also begins to stir with lust. Is this the fate of those who are bound by lascivious blood?

The humiliation inflicted upon Yukie and Rumi knows no bounds, and eventually, even Tomoko loses her virginity to President Nogawa's schemes. The sisters, now completely enthralled by sex, indulge in each other's bodies, seeking even greater pleasure. Amidst this debauched feast, Yumi, President Nogawa's secretary, plots her revenge against him...