Her beloved daughter, Mahiru, who has been raised by a single female hand, got married, and her mother, Eriko, has settled down even after raising her child. It was supposed to be a happy marriage, but after a while, Mahiru asked Tatsuro for an affair. When I called him and asked him about the situation, he suddenly confessed, “I like my mother-in-law.” Since that day, Eriko begins to be played with as an outlet for his distorted affection. I persuade Tatsuro that this shouldn’t happen forever …