Mika works as a housekeeper in a motherless, single-parent household. Unable to resist Mika's busty breasts and voluptuous body, the perverted father and son put their plan into action. When Mika's son, Satoshi, cries, Mika accidentally breaks a necklace he pretended was a keepsake from his late mother, forcing him to apologize with her body to his angry husband. Feeling sympathy and guilt for the motherless father and son, Mika alternates between providing sexual services to both father and son. The father and son's demands gradually escalate, and they even summon a male relative to have sex with Mika, doing whatever they want with him. Deep throating, spanking, and toy play, the men's desires are fulfilled, and she climaxes repeatedly, apologizing.