Yuko Akizuki, a 54-year-old housewife from Saga Prefecture. Her hobby is playing women's volleyball, and she hasn't had sex with her husband in over 15 years—so long that she's nearly forgotten what it's like to discuss intimacy at all. However, last year, after hearing a close friend from her volleyball group boast about becoming secret lovers with a younger man, Yuko felt a long-dormant passion stir deep within her body. From that moment on, her suppressed desires began to awaken, and she found herself increasingly drawn to browsing dating sites and social media. Craving new excitement unavailable in her hometown of Kyushu, Yuko grew eager to share her experiences with her volleyball friends, and her determination to take on this bold new challenge continues to grow stronger every day.