Wife Reiko was once famously known in her hometown as a promiscuous girl, but has since transformed into a devoted, selfless wife dedicated to her husband. One day, she's persistently approached by a street recruiter, who turns out to be Tatsuya, her former classmate with whom she used to indulge wildly. Unable to refuse his request, she begins working at a delivery health service, gradually awakening the long-forgotten pleasures of her nymphomaniac past. Yielding to Tatsuya's escalating advances, he takes her roughly just like in the old days. Fearful of her husband finding out, Reiko nonetheless sinks deeper into the pleasure of being repeatedly taken by dominant S-men, surrendering herself to their training and creampie-filled encounters.