After losing her husband, Anna becomes the manager of a boarding house through an acquaintance's introduction. One day, a white man arrives, wanting to live in the house. The foreigner is curious about Japanese culture and wants to try wearing a loincloth, so he shows off his huge, protruding penis to Anna and approaches her. Her body has been frustrated since the loss of her husband, and she climaxes multiple times as the white man's huge penis pounded into her. Anna gradually releases her lewd desires and enjoys satisfying the sexual needs of the male residents, feeling intense pleasure as her big breasts become covered in semen.