Rina is an ordinary housewife with a serious husband who works as a medical company employee, 12 years her senior, whom she met during a group date. Gentle by nature, she faithfully supports her hardworking husband. However, she harbors one lingering dissatisfaction—the lack of sexual intimacy, as her husband has never been proactive in bed. As the years pass, this issue has become increasingly apparent, leaving Rina troubled. Having once worked part-time at a stylish bar during her student days, she recently reconnected with old friends, sparking a desire for new excitement.