The Yukino couple come to a friend to borrow money because their company is struggling with financial difficulties. In exchange for the interest-free loan, the friend asks the wife to help with the housework. Rio agrees, not knowing that the wife has an incredibly perverted sexual fetish. As soon as the husband returns home, he is sexually harassed, but when he is given the opportunity to borrow money, he is creampied without being able to refuse. From then on, the serious wife is not allowed to refuse any kind of sexual harassment and is transformed into a lewd woman as she is immersed in pleasure every day.