| Artist name | Roles | Recordings |
|---|---|---|
| Hardside (from San Antonio) | ||
| [dialogue] (Special Purpose Artist) | ||
| 渡辺格 | arranger | Secret 〜誰かのメッセージ〜 |
| Artist name | Roles | Recordings |
|---|---|---|
| Hardside (from San Antonio) | ||
| [dialogue] (Special Purpose Artist) | ||
| 渡辺格 | arranger | Secret 〜誰かのメッセージ〜 |
| Artist name | Roles | Recordings |
|---|---|---|
| 渡辺格 | arranger | Secret 〜誰かのメッセージ〜 |
| Artist name | Roles | Recordings |
|---|---|---|
| Hardside | vocal | Birthday Song <326 mix> |
| [dialogue] | vocal | 「ハロ」 |