Takuma Ōta was a perverted anal maniac to the extent that he secretly filmed girls in the school restrooms and ranked their anuses. to the point of secretly filming girls' anuses in the school restrooms and rating them. One day, Shizune Yukihira, the school's idol, discovers his secret…! Having learned the main character's secret, Shizune says—— “C-could you please ○○ my anus?!” She utters words beyond imagination. How far will Shizune's anal ○○ level rise?! The young lady, whom he had thought was very cute and innocent, is going to be ○○ like an anal maniac!! Translated with https://laratranslate.com