A new beauty with a plump I-cup bust, Umino Mao, comes to get her first massage. As the kind massager loosens up her body, her tension gradually eases and she starts to relax... But as soon as she lies on her back, the massager's hands casually reach out to Mao's chest and other sensitive areas. The massager's hands continue to work harder and harder on Mao, who is flustered by the suddenness of the situation, while offering words of reassurance. By the time he starts to play with her crotch, she is so sensitive that she can no longer resist. Before she knows it, Mao has reached for the massager's penis and is accepting the massager with her lotion-covered body. She becomes addicted to the massage in a different way.