Hisakura Kayoko, 50 years old. A housewife married to a company employee, she has lived a peaceful life with her husband and two daughters. However, one day, she realizes she is no longer satisfied with sex with her husband. As she grows older and listens to other women her age talk about their sex lives, she begins to desire truly pleasurable experiences of her own. Though initially surprised and hesitant about new techniques and approaches unlike anything she's experienced before, she gradually gains confidence in her body, her large nipples erect with arousal, her neglected pubic hair glistening with moisture, openly embracing pleasure and enjoying herself in her own way.