My brother-in-law, Yuta, is looking for a job and will be staying with me for a while. At first Rio accepts with a smile, but... Yuta, who secretly had feelings for her, repeatedly rummaged through her underwear and peeked into her marital life. The beast, controlled by her desire, attacks her mercilessly as she pretends not to notice even though she feels his lewd gaze. Rio felt the climax many times due to her merciless hard pissing that her husband would never be able to experience. Before she knew it, the pleasure that resonated in her womb took over her heart...