In the harsh postwar era, a traveling entertainer couple from a cold village in Joetsu survive by playing Tsugaru shamisen. But when the husband suddenly dies from illness, his wife falls ill and is raped by the local temple priest, while their daughter is sent to live with the village headman. The widow is then forced into a life of sexual slavery by the villagers. Meanwhile, in Showa 38—the dawn of Japan's period of high economic growth—a tragic gang rape occurs during a funeral night, as three alluring milf sisters are surrounded and violated by their family members and nephew. Twenty-one years later, in Showa 59, a beautiful forty-year-old milf and her sister-in-law are left destitute after their husband volunteers for work in the Middle East and is killed by a landmine explosion; burdened with debt, they are humiliated and sexually abused by loan sharks. As time progresses, in Heisei 23, a beautiful farm wife in Hokkaido invites a male acquaintance, a veterinarian, on a secret adulterous hiking trip to Sounkyo during her husband's training absence. At the same time, a middle-aged woman traveling along snowy Ise roads, consumed by desires for infidelity, is attacked and brutally raped. This sensual theater weaves together four eras, each depicting the tragedies and desires of milfs, unfolding through a rich, layered narrative.