 Gen HoshinoSenpai (voice) | Senpai (voice) |
 Kana HanazawaThe Girl with Black Hair (voice) | The Girl with Black Hair (voice) |
 Hiroshi KamiyaDirector of School Festival Operations (voice) | Director of School Festival Operations (voice) |
 Ryuji AkiyamaDon Underwear (voice) | Don Underwear (voice) |
 Kazuya NakaiSeitarō Higuchi (voice) | Seitarō Higuchi (voice) |
 Yuhko KaidaHanuki (voice) | Hanuki (voice) |
 Hiroyuki YoshinoGod of the Old Books Market (voice) | God of the Old Books Market (voice) |
| SSeiko NiizumaKiko (voice) | Kiko (voice) |
 Junichi SuwabeNise-Jōgasaki (voice) | Nise-Jōgasaki (voice) |
 Aoi YukiPrincess Daruma (voice) | Princess Daruma (voice) |
 Chikara HondaBookstore Shopkeeper Gabi (voice) | Bookstore Shopkeeper Gabi (voice) |
 Ami KoshimizuNaoko (voice) | Naoko (voice) |
| SSōichi NakaokaKōsaka (voice) | Kōsaka (voice) |
| KKentarō KokadoVice-Captain of the School Festival Executive Committee / Parrot (voice) | Vice-Captain of the School Festival Executive Committee / Parrot (voice) |
 Nobuyuki HiyamaJohnny (voice) | Johnny (voice) |
 Kazuhiro YamajiTodo (voice) | Todo (voice) |
 MugihitoRihaku (voice) | Rihaku (voice) |
 Hiroshi YanakaChitoseya (voice) | Chitoseya (voice) |
 Hiroshi NakaDirector Akagawa (voice) | Director Akagawa (voice) |
 Tatsumi IshiharaElderly Scholar (voice) | Elderly Scholar (voice) |
 Daisuke HaradaKeifuku Electric Railway Study Group Student (voice) | Keifuku Electric Railway Study Group Student (voice) |
 Yuusuke SudaFake School Festival Executive Head (voice) | Fake School Festival Executive Head (voice) |
 Daiki HamanoGuide (voice) | Guide (voice) |
 Kazuhiro ImamuraStaff Member (voice) | Staff Member (voice) |
| YYoshiyuki ShinichiStaff Member (voice) | Staff Member (voice) |
 Shinichiro UchidaWaiter (voice) | Waiter (voice) |
 Takaaki TorashimaStudent (voice) | Student (voice) |
 Fukushi OchiaiBarker (voice) | Barker (voice) |
 Yuya HiroseSophistry Member (voice) | Sophistry Member (voice) |
 Takahiro ShimadaSophistry Member (voice) | Sophistry Member (voice) |
