Oki secretly casts evil glances at Momoko, a married woman in the neighborhood, but he accepts that reality is not what it seems and calls a delivery health girl... The girl who shows up is Momoko, who has started working in the sex industry without her husband's knowledge in order to repay her parents' debts. They are both surprised, but Oki, who has always had a lust for her, takes the opportunity to form a relationship with her. After that, Oki continues to visit as a customer, and Momoko accepts him and continues to have sex with him. As she serves him, she begins to feel her own sexual desire growing, and realizes that there is no turning back...