Featuring tracks from Season 1~3
Album was composed by Yuki Hayashi and was released on June 05, 2019. Soundtrack consists of 22 tracks tracks with duration over more than hour. Album was released by Vap.
CD 1
| 1 | Emergency Interrogation Room | 06:46 | |
| 2 | Step forward | 03:26 | |
| 3 | Tension | 03:31 | |
| 4 | kintori | 03:24 | |
| 5 | oji-san | 02:13 | |
| 6 | Disappointment | 03:03 | |
| 7 | Dawn | 04:10 | |
| 8 | Interrogations | 03:24 | |
| 9 | Feud | 03:02 | |
| 10 | Investigation | 02:20 | |
| 11 | Heterogeneous | 01:30 | |
| 12 | tightrope | 03:37 | |
| 13 | evil | 04:02 | |
| 14 | Turbulent | 03:24 | |
| 15 | Slap Back | 08:01 | |
| 16 | water lily | 05:07 | |
| 17 | iris | 01:45 | |
| 18 | monkshood | 03:02 | |
| 19 | Dutchman's pipe | 02:42 | |
| 20 | forget-me-not | 03:35 | |
| 21 | daisy | 02:42 | |
| 22 | lotus | 03:11 | |
