A mature woman named Yukino Shibata, aged 50, celebrating her 23rd wedding anniversary with two grown children. As a veteran nurse with 30 years of service under her belt, she has always been known for her beauty and sexual allure. In her younger days, she used sex as an escape from the pressures of work, often engaging in affairs with patients, colleagues, and various other men who frequented the hospital. However, over time, the thrill became more about the act itself rather than the illicit nature of their encounters. Despite being married for three decades, Mrs. Shibata remains heavily addicted to sex, continuing to pursue pleasure without regard for her partner or social status. This erotic documentary showcases the seductive charm of a full-blooded cougar who refuses to let age diminish her insatiable appetite for lustful adventures.