Original soundtrack included in first press edition of game.
Music Production: Orikura Toshinori
OP "Koakuma SMILE☆"
Vocal and lyrics: Ayumi. (Astilbe × arendsii)
Music and arrangement: Yanagi Eichirou (Astilbe × arendsii)
Guitar and bass: Takaoki Yamada from STRIKERS
Recording engineer: Takaoki Yamada from STRIKERS
Mixing engineer: Yanagi Eichirou
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ED "Future Ribbon"
Vocal: Morino Yukari
Lyrics: joru from STRIKERS
Composer: Orikura Toshinori from STRIKERS
Album was composed by Eiichiro Yanagi / Toshinori Orikura and was released on June 29, 2018. Soundtrack consists of 15 tracks tracks with duration over about 60 minutes. Album was released by CandySoft.
CD 1
| 1 | 小悪魔SMILE☆ | 03:58 | |
| 2 | 楽崎蓮太郎 | 02:58 | |
| 3 | 春名梨多 | 02:51 | |
| 4 | モンロー | 02:34 | |
| 5 | ブリュンヒルト・シュヴェスタン | 03:01 | |
| 6 | 逢魔我力リン | 02:39 | |
| 7 | 下級魔登場 | 02:09 | |
| 8 | 地遊尼ゆうり | 03:06 | |
| 9 | 神との邂逅 | 02:11 | |
| 10 | 地遊尼ラム | 02:00 | |
| 11 | そして自ヶ島 | 03:07 | |
| 12 | Future Ribbon | 04:46 | |
| 13 | 小悪魔SMILE☆ (instrumental) | 03:59 | |
| 14 | Future Ribbon (instrumental) | 04:46 | |
| 15 | Voice Drama | 14:29 | |
