Yuko passes through her free sex period and marries Yusaku Aisaka for a limited time. During that time, Yuko had intended to have more sex to her heart's content, but she was unable to satisfy Yusaku's limit of energy.
Kazuo, a struggling writer, begins writing novels about SM and lesbianism to make a living. However, as he continues to interview his wife, Yoshiko, their desires quickly escalate. Eventually, he chooses a woman named Kyoko as his sacrifice, but Kyoko, who at first glance seems normal, is actually...
