A young married woman suffering under her husband's strict control begins an affair with a man she meets one day. This man imposes rigid rules on her—monitoring her every move, forbidding skirts above the knee like a school uniform code, and prohibiting contact with other men. As this oppressive lifestyle continues, her marriage becomes suffocating and their relationship grows strained. Having never found a way to free herself since getting married, Ena Satsuki turns to an affair site to start secretly dating men. Her suppressed emotions finally explode, and the pleasure she experiences through infidelity becomes unforgettable. This intense desire drives her deeper into forbidden passion.