In the middle of the night, Riko wakes up sensing a presence and sees her uncle rummaging through the dresser for underwear. His behavior is suspicious and full of excuses, but his gaze is fixed on Riko's panties. When the owner-girl says, "Let me feel better..." and demands selfish service, the uncle-pet eagerly shakes his head. What was supposed to end with licking escalates into a situation where he fucks her thoroughly and fills her up. Furious, Riko plans to make him carry out the orders she gives, even as he devours her more in the bath...