Anzu has been a member of the swim club since she was a student, and now she has been appointed as the club's advisor. She's passionate about coaching the all-boys swim team, but the boys' eyes are focused on her ample breasts. If a weak nerd can do that, he must be pretty good ...... Her bathing suit is stripped off, exposing her breasts, and she is then gang-raped and forced to orgasm ......!