After three years of marriage, the Oishis were beginning to want a child. However, they were not blessed with a child. Then, a flyer for a "fertility treatment salon" found its way into their house, and Kaori, the wife, decided to go, on a whim... During the massage, Kaori's vagina was carefully stimulated to the depths, and her whole body was dominated by pleasure, and she accepted the stiff, erect penis. From then on, Kaori became addicted to the obscene treatments that were repeated at the salon, and continued to visit frequently...