Nurse Miruku was supposed to lose her virginity after receiving a proposal from her doctor boyfriend, but suddenly becomes unable to proceed due to flashbacks of a rape scene. Burdened with this trauma, Miruku consults her psychiatrist stepfather, who subjects her to intense sexual therapy. As her first time approaches, the true face of the rapist emerges. To achieve the happy marriage she desires, Miruku must endure her stepfather's forceful and lewd sexual treatments.