Yuka, who is undergoing infertility treatment through massage, is being taught techniques by a highly skilled bodyworker. She secretly undergoes sex therapy with her husband and becomes increasingly bold. One day, she is seen during the procedure by her brother-in-law, who then pressures her for a relationship. Despite her confusion, Yuka readily accepts, even spouting obscenities like a nymphomaniac. It was all supposed to be for marital harmony...
