| A tranquil tale about two boys from very different upbringings. On one hand you have Kai, born as the son of a prostitute, who's been playing the abandoned piano in the forest near his home ever since he was young. And on the other you have Syuhei, practically breast-fed by the piano as the son of a family of prestigious pianists. Yet it is their common bond with the piano that eventually intertwines their paths in life. |
| Name | Character | Episodes |
|---|---|---|
| Natsuki Hanae | Amamiya Shuuhei (voice) | 24 |
| Katsuyuki Konishi | Karol Adamski (voice) | 24 |
| Aoi Yuuki | Maruyama Takako (voice) | 24 |
| Yuichi Nakamura | Pang Wei (voice) | 24 |
| Soma Saito | Ichinose Kai (voice) | 24 |
| Maaya Sakamoto | Ichinose Reiko (voice) | 24 |
| Hideyuki Tanaka | Amamiya Youichirou (voice) | 24 |
| Toshiyuki Toyonaga | Hirata Kousei (voice) | 24 |
| Junichi Suwabe | Ajino Sousuke (voice) | 24 |
| Koji Yusa | Saga Takeshi (voice) | 12 |
| Bin Shimada | Jean Jacques Serrault (voice) | 12 |
| Ryo Hirohashi | Arisa | 12 |