{{MusicArticle
| titleen     = Fragments of KoishiSubterranean
| group       = [[Ecriss]]
| groupCat    = Ecriss
| released    = 2012-12-30
| convention  = Comiket 83
| tracks      = 2
| length      = 12:45
| catalogno   = 
| genre       = {{Genre|Instrumental}}, {{Genre|Electronic}}
| website     = 
| digital     = [https://ecriss.bandcamp.com/album/fragments-of-koishisubterranean Bandcamp]
| image       = KoishiSubterranean.jpg
| banner      = 
| banner_res  = 
| caption     = Portrayed: [[Koishi Komeiji]]
| arranger    = 
| lyricist    = 
| vocalist    = 
| producer    = 
| illustrator = 
| designer    = 
| masterer    = 
| other_staff = 
| description = It features instrumental arrangements of themes from ''[[Subterranean Animism]]''.
| tracklist   =

* {{Track|01|Starless Lucidness|06:56}}
** arrangement: Ecriss
** original title: {{lang|ja|暗闇の風穴}}
** source: {{SA}}
** first release: Starless Lucidness on [[KoishiSubterranean]]

* {{Track|02|Out of Reception|05:49}}
** arrangement: Ecriss
** original title: {{lang|ja|渡る者の途絶えた橋}}
** source: {{SA}}
**first release: Out of Reception on [[KoishiSubterranean]]

}}