One day, when his aunt Rie comes to visit for the first time in a while, his nephew Fumio, who loves pro wrestling, asks her if he can use a move on her, but instead, his aunt uses a groin hold and he ejaculates. Feeling embarrassed about Rie, Fumio vows to get revenge, and when he finds an opportunity, he sneaks up on Rie from behind, applies a move from behind to immobilize her, and then he attacks his aunt's ripe body...