Ayane, who met the doctor Yuji on a marriage site and got married quickly, had been worried about her life as newlyweds because of their differing schedules. One day, her husband's father fell ill, and Ayane had to stay at her in-laws' house to take care of him. She behaved impeccably as a member of a prestigious family, but eventually discovered the family's penchant for masochism. As Ayane began to accept the family's hidden sufferings as one of them, her latent sadism started to awaken.
