54-year-old Chihiro Sasaki had long feared that with menopause approaching, her life as a woman was coming to an end, leaving her with a deep regret—she still wanted to enjoy sex. After discovering adult videos featuring women in their 50s and 60s, she found the courage to take a bold step forward. Having rarely engaged in masturbation before, her dormant female body is slowly and carefully awakened, with pleasure gradually spreading from deep within her dry petals. Through this process, she rediscovers the mechanisms and mysteries of her own body, uncovering a newfound pleasure she never knew existed.