Rui, a beautiful wife with an outstanding figure, was living a life of bliss with her husband, who has a well-paid job as a site supervisor. However, her husband's work caused significant delays in the construction schedule, and the construction client demanded damages. To protect her cornered husband, Rui offers her body to the client. The client, who had gotten a taste for Rui's excellent vagina, wanted more of her body, and in front of her husband, he seduced Rui by dangling money in front of her. And so the busty wife became a human toilet.