Saori married a younger man. They get along well, but she wasn't satisfied with her husband's nighttime activities. Then she started living with her husband's father, her father-in-law. Her father-in-law was kind and considerate to Saori, and it seemed like a good cohabitation relationship. One night, Saori was making love with her husband, but he came before she was satisfied and fell asleep snoring. Saori was not satisfied, but she had no choice but to rest. Then, she felt some hands rustling around and playing with her. Surprised, she turned over the covers and saw her father-in-law. She tried to scream, but her father-in-law covered her mouth, whispered in her ear that she wouldn't be satisfied with what she did with her son, and fingered her. Her father-in-law's skillful technique made her cum for a moment, but just as her husband was about to wake up in his sleep, his father-in-law quickly left the bedroom. The next day, after sending her husband off to work and doing the housework, her father-in-law hugs her from behind and torments her as if it were a continuation of the day before. Even though she says she doesn't want to, her body gradually responds to her father-in-law's caresses, and finally Saori is penetrated by her father-in-law's penis. At night, Saori wonders whether to tell her husband about her father-in-law, but she can't bring herself to do it. The next day, her husband is off work and he plays games all day long. He is in his own world with headphones on. In that situation, her father-in-law begins to rape Saori again. Her father-in-law plays with her and torments her as he pleases, and Saori is made to cum again by her father-in-law. Her father-in-law doesn't stop even after she cums, and he is persistent and relentless. Unlike her husband, he is strong and does it over and over again. When her father-in-law tells her that he will teach her more, Saori naturally replies, "Yes." A few days later. After making sure that her husband is asleep, Saori leaves the bedroom and goes to her father-in-law. Saori said to her grinning father-in-law with a shy and pleading look on her face, "Dad, I can't help but feel a tingling sensation down there..."