Hiro Takaoka (高岡 ひろ Takaoka Hiro) is Akari and Chinatsu's classmate, who is an admirer of Kyōko's doujin works. She is the protagonist of the Yuru Yuri spinoff Reset! and Aoi Isurugi's best friend.
- She and Hiro make a cameo in the season 2 finale selling their Doujins. It would seem that Aoi has finally suceeded in making some money.