Shizuku, a wife, begins living with her father-in-law at her husband's request, "I want you to live with my father-in-law, who is not in good health." However, Shizuku has always disliked her father-in-law, who has sexually harassed her whenever they meet. However, once they start living together, Shizuku finds that her father-in-law is in good health, and when they are alone, he makes advances on her. Furthermore, she says, "I understand the position of my son, who works at our company..."