Nishino Miyuki, a 42-year-old married woman working in Tokyo, is a dedicated professional and loving mother to her three adorable children, living a happy family life. However, she has been enduring a sexless marriage, struggling with her increasingly sensitive body and rising sexual desire after each childbirth. Her nipples, in particular, have become remarkably sensitive after giving birth, and she has even started lactating. Coming across an AV actress recruitment site, she decided to seek new pleasures for her sensitive nipples and her long-unstimulated pussy, arriving here today to embark on this journey.