Ayami is an ordinary wife who works as a nursery school teacher and manages the household. However, their marriage was in a rut. Her husband always made fun of her small breasts. One day, a man comes to visit the house. He feels a faint emotion for Ayami, who reminds him of his wife. Ayami is also attracted by his kind attitude. It is only a matter of time before they become man and woman. It was only a matter of time before they would become man and wife. There was no room for her husband in their relationship. Ayami leaves for a new life.