Risa (Yui Hatano), a chaste wife troubled by sexlessness, was pressured by her parents to have a grandchild. One day, she accessed an infertility treatment site. A therapist visited her. "Be even more charming than you are now!" As her senses were stimulated, Risa, who offered up her chastity, quickly became addicted to the obscene training procedures. She kept telling herself that it was all for her husband...
