After her husband's mother passed away, she decided to live with her father-in-law. However, Tsukasa, who didn't like her father-in-law's lewd gaze, felt uneasy about living together. As expected, when they started living together, her father-in-law would constantly touch her body while talking to her, and while saying he was giving her a massage, he would reach for her crotch. When she consulted her husband about it, he responded casually, and Tsukasa began to think about ending their cohabitation. Her father-in-law, realizing this, made a plan, saying, "It would be better to prepare early."