| Track Name | Track Artist | Album Artist | Album Name | Official Purchase/Artist Link | Album Genre | Source Track(s) |
|---|---|---|---|---|---|---|
| Starless Lucidness | Ecriss | Ecriss | Fragments of KoishiSubterranean | Link | 暗闇の風穴 | |
| Out of Reception | Ecriss | Ecriss | Fragments of KoishiSubterranean | Link | 渡る者の途絶えた橋 |