Momoko has been married for three years and is living happily with her husband, Keita, who is five years younger than her. One day, his father-in-law, Tadanori, who was living a retired life, suddenly came without any contact. Tadanori, who had been keeping an eye on Momoko for a long time, took advantage of Keita's absence and started messing around with Momoko. Tadanori begins to grope Momoko's body, saying that it's her "fertility treatment" for Momoko who can't have children. Momoko's sensitive body, even though she knows it's wrong, reacts to her fear.
