| Artist name | Roles | Recordings |
|---|---|---|
| 本田晃弘 | arranger | HEAVENS DIVIDE, HEAVENS DIVIDE (short ver.) |
| ZYX (Japanese girlpop group) | ||
| 関戸剛 | ||
| 坂上真清 | arranger, Irish harp / clàrsach, mandolin, wind chime | Wondering |
| Artist name | Roles | Recordings |
|---|---|---|
| 本田晃弘 | arranger | HEAVENS DIVIDE, HEAVENS DIVIDE (short ver.) |
| 坂上真清 | arranger, Irish harp / clàrsach, mandolin, wind chime | Wondering |
| Artist name | Roles | Recordings |
|---|---|---|
| ZYX | vocal | 行くZYX! FLY HIGH |
| 関戸剛 | vocal | Journey's End |