Pre-released at character 1 2018
to hope to despair
Lyrics：Yuka Hara from STRIKERS
Vocal：Ayumi. (Astilbe × arendsii)
another story
Lyrics：Yuka Hara from STRIKERS
Composer：Toshinori Orikura from STRIKERS
Vocal：柊木環希
to start from now
Lyrics：Yuka Hara from STRIKERS
Composer：Amedio
Vocal：Prico
Album was composed by Amedio / Toshinori Orikura and was released on May 2018. Soundtrack consists of 26 tracks tracks with duration over . Album was released by Azurite.
CD 1
| 1 | to hope to despair | | |
| 2 | to hope to despair～inst ver.～ | | |
| 3 | Ordinary | | |
| 4 | Healthy | | |
| 5 | Dubious | | |
| 6 | Quiet | | |
| 7 | Funny | | |
| 8 | Mysterious | | |
| 9 | Spooky | | |
| 10 | Desperate | | |
| 11 | Behavioral | | |
| 12 | Disturbing | | |
| 13 | No return | | |
| 14 | Sorrow | | |
| 15 | Affectionate | | |
| 16 | Memories | | |
| 17 | Actor | | |
| 18 | Connector | | |
| 19 | Illuminator | | |
| 20 | another story | | |
| 21 | another story～inst ver.～ | | |
| 22 | ここにあるほほえみ | | |
| 23 | かなでるこころ | | |
| 24 | あくまで、これは～の物語 | | |
| 25 | to start from now | | |
| 26 | to start from now～inst ver.～ | | |
