| Seiyuu | Role |
| Kishou Taniyama | Seiji Sawamura |
| Mai Nakahara | Midori Kasugano |
| Yukari Tamura | Shiori |
| Rie Kugimiya | Kouta Shingyouji |
| Yuuji Ueda | Shuichi Takamizawa |
| Hirofumi Nojima | Osamu Miyahara |
| Reiko Takagi | Takako Ayase |
| Atsuko Yuya | Rin Sawamura |
| Takahiro Yoshimizu | Nishida-sensei |
| Sayaka Ohara | Haruka Kasugano (Midori's Mother) |
| Chiwa Saitou | Seiji Sawamura (as a child) |
| Mikako Takahashi | Rin Sawamura (as a child) |
| Shinji Kawada | Shiori's Father |
| Yuki Masuda | Shiori's Mother |