Shioriho is a married private tutor who graduated from a top university and worked as a tutor at a cram school before getting married. She quit her job as a private tutor after getting married, but she started working again to make ends meet. Her husband is a hard-working man, but their sex life is bland and unsatisfying, so she has an affair. One day, a student she was in charge of shows Shioriho a smartphone with a picture of the affair on it, and she can't hide her shock. From then on, she is subjected to a wave of sexual harassment. Even her son's friends and father start treating Shioriho as a sex pet.