"You don't really mind being an aunt, do you?" It's been three months since her son Satoshi started bringing Tetsuo over to their house. Ayako is shocked to find out that Tetsuo's true purpose is not to play with her son, but to be interested in her. She never imagined that such a young man, so far apart in age as father and son, would be interested in her... But Tetsuo's desires, which escalate day by day, eventually exceed Ayako's expectations, and he begins to set his sights on her ripe body...