Miho finds her marriage has grown cold. She recently realized that her relationship with her husband has been failing, yet out of consideration for his hard work, she continued maintaining their marriage through cooking, housework, and having sex once a month. Their communication has nearly disappeared, and she carried out these duties more out of obligation than desire. Still, she somehow managed to find personal satisfaction and pleasure in bed. Thinking about how her husband truly felt brings a painful ache to the heart.