JK Fuuzoku Gakuensai - Episode 1

The protagonist of the hentai is an ordinary middle-aged Japanese man who works in an office. One day he meets an unusually slutty young girl from a private female academy, who gives him an unusual VIP card for the "cultural female pleasure festival". This premium card is rumored to be valid across the entire campus and allows its holder to get absolutely any sex service from any local girl.