- Naoyuki Ageishi
- (voice)
- Yû Akiba
- Schoolboy
- Ayaka Asai
- Schoolgirl
- Taito Ban
- Schoolboy
- Haruka Fukuhara
- Misuzu Kadenokouji
- Minami Hamabe
- Ruri Ichigyou
- Moeka Hirakuri
- Schoolgirl
- Keigo Hoshino
- (voice)
- Tomoko Ikeda
- Broadcast in the Hall
- Yugo Ikezawa
- (voice)
- Emiri Iwai
- Schoolgirl
- Ryouhei Iwase
- (voice)
- Ryo Kaede Kamitaka
- (voice)
- Yukitoshi Kikuchi
- Library Chairman
- Hina Kino
- Schoolgirl
- Takumi Kitamura
- Naomi Katagaki
- Naoto Kobayashi
- Researcher
- Hina Koga
- (voice)
- Minako Kotobuki
- Yiyi Xu
- Takehito Koyasu
- Kouji Senko
- Rie Kugimiya
- Crow
- Nanami Matsumoto
- (voice)
- Tôri Matsuzaka
- Naomi Katagaki
- Naoya Miyase
- Schoolboy
- Kazuki Nakajima
- (voice)
- Ayaka Nanase
- Schoolgirl
- Shiina Natsukawa
- Schoolgirl
- Shinya Nishiyama
- (voice)
- Takeo Otsuka
- Schoolboy
- Akane Ouchi
- (voice)
- Shinjirô Sakurai
- (voice)
- Fumiya Satô
- (voice)
- Mayu Shirase
- (voice)
- Ayû Shôji
- (voice)
- Soichiro Sugawara
- (voice)
- Ikumi Tachibana
- (voice)
- Reina Takeshita
- (voice)
- Eiichiro Tokumoto
- Researcher
- Takuma Yoshida
- (voice)
- Shoko Yuzuki
- Naomi's Mother
