Eri Sonozaki, a 35-year-old housewife. Married for nine years and mother to one child, she has been unable to find satisfaction in her sex life with her husband and has previously used dating apps several times. Yet she never encountered a man who could truly satisfy her, always longing to cross into that uncharted territory of pleasure. She says, "I can orgasm through masturbation, but I've never been properly brought to climax by a penis. Sex feels good, of course, but I feel like I haven't experienced true pleasure yet—and that's really frustrating (laughs)." Hoping to make today her "first vaginal orgasm anniversary," witness her as she is repeatedly and intensely penetrated, finally reaching that long-awaited moment.