The Hirai couple moved to a barrier-free apartment to care for the husband's father. It's not a bad place to live, but Shiori is worried about the manager, Abe, who is looking at her with a malicious gaze... And her fears are realized. Shiori is violated by Abe, and his filthy semen is poured into her mouth. For the sake of her beloved husband and his father... Shiori endures the humiliation. Abe is excited by her state, and continues to violate her morning, noon, and night, making her drink his thick semen each time...