Completely relaxed and off duty, Mayu chats with the staff about a funny new challenge: the Standing Doggy-Style Championship. She admits she likes the position and listens with growing interest as they explain the rules, until a staff member asks whether she wants to try and the decision is practically made for her. Her standing-doggy opponent suddenly appears. What begins as playful fun turns serious once he touches her and gets her aroused. With her pussy soaked and his cock rock hard, she thrusts out her round ass and launches into a lust-driven hardcore fuck. How will the championship end?