A sweeping erotic anthology follows troubled widows and mature women across four eras. In December after Japan's defeat in World War II, a traveling couple and their young child survive by playing Tsugaru shamisen in remote Joetsu villages. When the husband dies suddenly, his sickly widow is assaulted by the priest who shelters her; her daughter is placed with a village headman, and the widow becomes a nun before being enslaved by adult villagers. In 1963, three voluptuous mature sisters are gang-assaulted on the night of a funeral by lust-crazed adult relatives, including an adult-nephew role. In 1984, after a husband dies on a land mine while serving with a foreign legion in the Middle East, his beautiful wife in her forties and her sister-in-law are violated by moneylenders over his debts. Finally, in Hokkaido in 2011, a dairy farmer's wife invites a veterinarian acquaintance on an adulterous climbing trip to Sounkyo, while another mature wife seeking an affair is attacked during a snowy journey through Ise.