Ayane quickly married a doctor named Yuji whom she met on a dating website. Soon after getting married, she was struggling with their misunderstandings. One day, her husband's father falls ill, and she has to live with her parents for a while to look after him. Ayane tries to behave in a way that will not embarrass her as she married into a distinguished family, but one day she becomes aware of the masochistic nature that runs through the family. As she accepts the family's troubles as a member of the family, the sadism hidden inside her begins to throb...