Appears on releases
| # | Title | Length | Track artist | Release title | Release artist | Release group type | Country/Date | Label | Catalog# |
|---|---|---|---|---|---|---|---|---|---|
| Official | |||||||||
| 5.28 | 闇の廃坑 | 2:18 | 小林美代子 | ガスト20周年記念CDボックス (数量限定生産) | Various Artists | Album + Compilation + Soundtrack |
| KOEI (video game music) | KECH-8005 |
| Pseudo-Release | |||||||||
| 5.28 | Abandoned Darkness | 2:18 | 小林美代子 | GUST 20th ANNIVERSARY CD BOX | Various Artists | Album + Compilation + Soundtrack | |||
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