Kiriko loses a bet and has to sign up for a very tough sexual fight where there are no rules, only the opponent's orgasm. She will only have 3 rounds to win, but in the first round they hit her, immobilize her and she cums embarrassingly. Later, in the second round, she manages to win by making her opponent cum inside her, but in the last round she loses. After losing, they tie her up, electrocute her and several people in the arena take a turn to make her receive a blowjob from them and fill her mouth and face with semen.