Fumika Nagasawa, a 50-year-old veteran housewife. Married for 24 years and mother of two, she works at a golf driving range as a receptionist. Cheerful, energetic, and fun-loving, she's extremely popular among middle-aged male golfers who are drawn to her charm. With her J-cup explosive breasts and sexy allure, she receives countless after-hours invitations. After beginning an affair, her perspective on sex drastically changes—she gets wet from tongue-kissing and evolves into a lustful woman who eagerly performs deep throat. However, being with the same partners over time has dulled the excitement. Seeking new thrills, she steps onto the pleasure tee ground in pursuit of fresh stimulation.