Yoko, a housewife struggling with infertility, learns from her husband one day that their neighbor is a chiropractor specializing in infertility treatment. Urged by her parents, Yoko decides to try the treatment. As her sexual sensitivity is awakened by skilled, obscene techniques, Yoko's body rapidly begins to release its sexual instincts. Her natural eroticism blooms from pleasures she could never experience with her husband, but...