Satsuki, who lives with her daughter and son-in-law, strives to ensure their harmony. However, she is troubled by her daughter's increasingly harsh behavior toward her son-in-law. Even today, when her son-in-law made a small compliment on Satsuki's cooking, her daughter became upset, creating an awkward atmosphere. Late at night, Satsuki headed to the kitchen to find her son-in-law sitting there with a dejected expression. He revealed that there was something bothering him more than cooking. He was reluctant to speak, but finally revealed that he and his daughter were not having sex. Satsuki made up her mind, saying, "I'm sorry, my daughter. Just for today, just for today, I'll make it up to you," and rubbed and licked her son-in-law's crotch. A few days later, Satsuki asked her if they were going to have children, but she skillfully evaded the question. Her son-in-law couldn't forget Satsuki's body, and despite having a daughter, he began to desire her. Satsuki replied, "No, that was just a special time," but Satsuki kissed him and began to fondle her. Although she is reluctant, her body begins to react, lightly soiling her underwear. As her son-in-law teases her, her body begins to open up, and just as she thinks he will insert himself, her daughter calls for him. Satsuki is relieved, but she realizes that she is not completely satisfied and is still aching...