Three years into marriage as a full-time housewife, she enjoys a stable relationship with her slightly older husband, having sex once or twice a month—an arrangement that seems perfectly normal to outsiders. In reality, however, she has never experienced an orgasm. After confiding in a former coworker, she's advised to try sex toys. If she can climax with a toy, maybe she can with her husband too—hope swells in her chest. A few days after receiving her purchase from a popular online retailer, she begins experimenting. On her fifth attempt, she finally reaches orgasm through toy masturbation. That same evening, she tries sex with her husband, but fails to climax again. Torn by this dilemma, she throws herself into daily self-pleasure, yet remains unsatisfied. Nothing compares to the real thing—she craves the genuine sensation. With her pendulous big tits swaying, she heads to Shinbashi, the "salaryman paradise," to meet a man. What happens next awaits in the main feature!