Sumire, a housewife who is lonely and has no way of knowing what to do with her husband, is comforting herself alone even though she knows she will never be satisfied... One day, a man named Ando appears to be selling a massage service, and Sumire is persuaded to invite him into her house. He uses oil to massage her, and eventually he uses it on her sensitive nipples. Despite her intention to refuse, Sumire body accepts Ando's caresses, and her crotch, which is already soaked with oil, is violently stirred up, bringing her to orgasm... Then, wanting more pleasure, Sumire calls Ando herself later...