Disc 1: Original Sountrack
BGM: milktub / STUDIO 696
Disc 2~4: Vocal Collection
Album was composed by CAS / milktub and was released on December 20, 2019. Soundtrack consists of 53 tracks tracks with duration over . Album was released by Overdrive.
CD 1
| 1 | 天使の住まう街 | | |
| 2 | Brand New Day | | |
| 3 | 日々は流れるように | | |
| 4 | 交差 | | |
| 5 | スラップスティック・エンジェル | | |
| 6 | Let’s Go | | |
| 7 | 両手を広げて | | |
| 8 | 頬を撫でる風 | | |
| 9 | Rebirth | | |
| 10 | 声高く君の名を呼び | | |
| 11 | やわらかな日差しの中で | | |
| 12 | あふれる想い | | |
| 13 | White Out | | |
| 14 | Fragile | | |
| 15 | 灯火 | | |
| 16 | Painted Black | | |
| 17 | オアシス | | |
| 18 | 棘 | | |
| 19 | Alone | | |
| 20 | Crying | | |
| 21 | Maze | | |
| 22 | 雪結晶 | | |
| 23 | 絡みつくもの | | |
| 24 | Last Shooting | | |
| 25 | ずっとそばにいるから | | |
| 26 | Feather Song | | |
| 27 | Dawn Light | | |
| 28 | Snow Song | | |
| 29 | Glass Bead | | |
| 30 | ワスレナグサ | | |
| 31 | End of the World | | |
| 32 | 星月夜 (Arranged) | | |
| 33 | さよならの奇跡 | | |
| 34 | Vividness (Arranged) | | |
| 35 | It’s Show Time! | | |
CD 2
| 1 | Feather Song | | |
| 2 | Feather Song (Off Vocal) | | |
| 3 | Feather Song (Off Vocal & Guitar) | | |
| 4 | Feather Song (Off Vocal & Bass) | | |
| 5 | Feather Song (Off Vocal & Drum) | | |
| 6 | Feather Song (Off Vocal & Organ) | | |
CD 3
| 1 | TARILATTA | | |
| 2 | TARILATTA (Off Vocal) | | |
CD 4
| 1 | Feather Song | | |
| 2 | さよならの奇跡 | | |
| 3 | End of the World | | |
| 4 | Dawn Light | | |
| 5 | Glass Bead | | |
| 6 | Vividness | | |
| 7 | ワスレナグサ | | |
| 8 | 星月夜 | | |
| 9 | まどろみDreaming | | |
| 10 | Snow Song | | |
