 | Gen Hoshino als Senpai (voice) |
 | Kana Hanazawa als The Girl with Black Hair (voice) |
 | Ami Koshimizu als Naoko (voice) |
 | Aoi Yuki als Princess Daruma (voice) |
 | Hiroshi Kamiya als Director of School Festival Operations (voice) |
 | Chikara Honda als Bookstore Shopkeeper Gabi (voice) |
 | Hiroyuki Yoshino als God of the Old Books Market (voice) |
 | Junichi Suwabe als Nise-Jōgasaki (voice) |
 | Kazuhiro Yamaji als Todo (voice) |
 | Kazuya Nakai als Seitarō Higuchi (voice) |
 | Mugihito als Ri Haku (voice) |
 | Nobuyuki Hiyama als Johnny (voice) |
 | Ryuji Akiyama als Don Underwear (voice) |
 | Seiko Niizuma als Kiko (voice) |
| Sōichi Nakaoka als Kōsaka (voice) |
 | Yuhko Kaida als Hanuki (voice) |
| Michiru Oshima | Original Music Composer |
| Kenji Shimizu | Executive Producer |
| Masaaki Yuasa | Director |
| Masaaki Yuasa | Storyboard Artist |
| Shizuo Kurahashi | Foley Artist |
| Hiroshi Ohno | Art Direction |
| Nobutake Ito | Character Designer |
| Nobutake Ito | Supervising Animation Director |
| Noriko Ozaki | Producer |
| Makoto Ueda | Screenplay |
| Izumi Murakami | Key Animation |
| Shinichi Uehara | Art Direction |
| Shinya Oohira | Key Animation |
| Shinya Oohira | Storyboard Artist |
| Norio Matsumoto | Key Animation |
| Eunyoung Choi | Line Producer |
| Eunyoung Choi | Storyboard Artist |
| Abel Góngora | Animation |
| Juan Manuel Laguna | Animation |
| Koji Yamamoto | Executive Producer |
| Shingo Natsume | Storyboard Artist |
| Eriko Kimura | Sound Director |
| Batiste Perron | Director of Photography |
| Ho Pyeon-gang | Second Unit Director |
| Daiji Horiuchi | Executive Producer |
| Tomihiko Morimi | Novel |
| Katsuhiro Nakano | Sound Editor |
| Katsuhiro Nakano | Sound Mixer |
| Shigeto Tsuji | Key Animation |
| Kunihiko Hamada | Key Animation |
| Akari Saitoh | Editor |
| Natsuko Shimizu | Key Animation |
| Tetsuro Kaku | Key Animation |
| Akihiro Arai | Executive Producer |
| Keiji Ota | Executive Producer |
| Junnosuke Ito | Producer |
| Lucille Briand | Color Designer |
| Alice Tiroille | Color Designer |
| Chie Nishihara | Key Animation |
| Kanchi Suzuki | Key Animation |
| Takayuki Hamada | Animation Director |
| Takayuki Hamada | Key Animation |
| Takuya Saito | Key Animation |
| Yuko Matsui | Key Animation |
| Eiko Yabuki | Key Animation |
| Shoko Nishigaki | Key Animation |
| Yasumi Ogura | Key Animation |
| Takuya Hasegawa | Sound Editor |
| Jorge García Bastidas | Sound Re-Recording Mixer |
| Akira Honma | Key Animation |
| Tomohisa Shimoyama | Animation Director |
| Tomohisa Shimoyama | Key Animation |
| Hirokazu Ishino | Key Animation |
| Momoka Aiso | Key Animation |
| Kouji Ishida | Key Animation |
| Matsu Ishi | Key Animation |
| Maiko Kobayashi | Key Animation |
| Kenta Miya | Key Animation |
| Azusa Okazaki | Key Animation |
| Hiroaki Otsuji | Key Animation |
| Nozomi Tachibana | Key Animation |
| Daiki Ogawa | Foley Editor |
| Yusuke Nakamura | Character Designer |
