30-year-old Kasumi Kida is a former basketball standout who used her 175cm tall frame to excel during her school days. Now five years into marriage, she lives with her husband and their 5-year-old son. She left her job after getting pregnant shortly after marrying her former senior at work, dedicating herself fully to family life. While her relationship with her husband remains stable and free of conflict, it's settled into a constant, lukewarm state—which has quietly become a source of dissatisfaction. Though she admits her life is happy enough, she feels her future is too predictable, and the monotony of daily routine leaves her craving something more. In reality, she has sex with her husband about once a week, and even that fails to bring her real satisfaction. Such a gorgeous, voluptuous body was never meant to fade away in an ordinary existence! This carefully crafted documentary captures her indulging fully in pleasure, awakening to true ecstasy for the first time.