| Artist name | Roles | Recordings |
|---|---|---|
| riya (Japanese female singer) | ||
| 茶太 | ||
| 霜月はるか | vocal | I hope so... -whereabouts- |
| Artist name | Roles | Recordings |
|---|---|---|
| 霜月はるか | vocal | I hope so... -whereabouts- |
| Artist name | Roles | Recordings |
|---|---|---|
| riya | arranger | 少女の幻想 ZTS Remix |
| 茶太 | arranger | anesthesia |