Hisae lives a happy life with her husband, but her peaceful days are shattered when she reunites with her former classmate, Narusawa. The long-buried nightmare of being used as a sex slave by Narusawa and his friends resurfaces. Threatened with exposure of her past to her husband, Hisae is forcibly raped. As Narusawa's former accomplices reappear, she is gradually drawn into the pleasure of abuse. A story where trembling fear, despair, and pleasure intertwine deep within her soul.