A married woman in her thirties hides a vibrator in her well-shaved groin, awakening intense pleasure. With the vibrator still inserted, she visits a public restroom where she lasciviously plays with her nipples and crotch, craving even greater stimulation. She is then subjected to stronger vibrator torture to amplify her ecstasy. Later, in a room, her hands and feet are bound to the walls, a ball gag stuffed in her mouth, and she is brought to climax through relentless vibrator sessions, fingering, tied-up blowjob, and bareback sex. She transforms completely into a true nymphomaniac. This is Discipline School for Women in Their 30s!※Facial exposure in main feature