| Seiyuu | Role |
| Ayako Kawasumi | Otoha Sakurano |
| Saori Gotou | Karen Sonomiya |
| Shizuka Itou | Eika Ichijou |
| Junji Majima | Rei Hizuki |
| Ryoko Shiraishi | Takumi Hayami |
| Yui Horie | Nanae Fujieda |
| Kumiko Higa | Ranko Mikogami |
| Kishou Taniyama | Ryouhei Tachibana |
| Keiji Fujiwara | Souya Tougou |
| Ayumi Tsuji | Elise von Dietrich |
| Hitomi Nabatame | Yuko Aki (Episode 9) |
| Akiko Kimura | Kiriko Suou (Episode 2, 6, 9) |
| Junichi Suwabe | Jin Hizaki |
| Miyuki Sawashiro | Yuuki Sakura (Episode 1) |
| Toru Ohkawa | Otoha's Grandfather (Episode 1 & 4) |
| Haruka Tomatsu | Yayoi Makihara (Episode 1 & 2) |
| Yuuichi Nakamura | Matsuzaka (Episode 1) |