| Track Name | Track Artist | Album Artist | Album Name | Official Purchase/Artist Link | Album Genre | Source Track(s) |
|---|---|---|---|---|---|---|
| 8bit 8bit 8bit | heric | Undefined Field | idea sketch | Not Available | 天空の花の都 | |
| remnant merody (Original Mix) | heric | Undefined Field | idea sketch | Not Available | 六十年目の東方裁判 ～ Fate of Sixty Years | |
| twilight borderline | heric | Undefined Field | idea sketch | Not Available | 六十年目の東方裁判 ～ Fate of Sixty Years |