48-year-old housewife Miyabi Katsuragi. For her, marital intimacy with her husband has completely disappeared after 30 years of marriage. The shift began when her eldest son got married and, at the couple's request, moved into a shared two-family household. Although their sex life had already started to decline, the presence of another family under the same roof made things too awkward, ultimately severing their physical relationship entirely. Eight years have passed since then. Not only sex, but even masturbation became difficult to do freely, and over time, she came to accept this as normal. Amidst this life, she became aware of herself as a woman and grew saddened by the fading of her femininity. Preferring slow, gentle, and intimate lovemaking, she nervously and shyly experiences sex again after so long, her voluptuous 96cm F-cup breasts thoroughly kneaded with sensual delight. The warmth and long-forgotten pleasure deeply stir her heart.