Cast
- Yui Horie as Riki Naoe (voice)
- Tomoe Tamiyasu as Rin Natsume (voice)
- Hikaru Midorikawa as Kyousuke Natsume (voice), Toki Fu Shun (voice)
- Nobutoshi Canna as Masato Inohara (voice)
- Yusei Oda as Kengo Miyazawa (voice)
- Natsumi Yanase as Komari Kamikita (voice)
- Hikaru Isshiki as Yuiko Kurugaya (voice)
- Keiko Suzuki as Haruka Saigusa (voice), Kanata Futaki (voice)
- Naomi Wakabayashi as Kudryavka Noumi (voice), Chernushka (voice)
- Sora Tokui as Sasami Sasasegawa (voice)