Surrounded by her obedient daughter, Mai, and her loving husband, Fumie is regarded by those around her as a good mother and a good wife, but she has a secret that she cannot tell anyone. It all started with an affair she committed with a younger man, Akira, several years ago. Since then, Fumie has been thinking about young men even when she is held by her husband. Unaware of Fumie's true nature, Mai often brings her boyfriend, Yuta, to her house. One day, Yuta visits Fumie's house by himself, but...