After losing her husband, Anna becomes the caretaker of a boarding house through an acquaintance's introduction. Every day, the male residents are fixated on the caretaker's large breasts and ass, making lustful glances at her while she cleans. One day, a white man arrives, wanting to live at the boarding house. The foreigner, curious about Japanese culture, wants to try wearing a loincloth, so he shows off his huge, protruding penis to Anna and approaches her. Her body, frustrated since the death of her husband, is pounded hard by the white man's huge penis, bringing her to multiple orgasms. Gradually, Anna's lewd desires are released, and she enjoys satisfying the sexual needs of the male residents, feeling intense pleasure as her big breasts become covered in semen.