BGM: love solfege / solfa
M-01 - Opening Theme
Vocals: Eiri Ayano
Composer: Shinichiro Matsumoto
Arranger: Shinichiro Matsumoto
Lyricist: Hinako Konno, 藤文
Translation: Jenya
M-19 - episode I Opening Theme
M-20 - episode II Opening Theme
M-21 - episode III Opening Theme
M-22 - epilogue Opening Theme
Vocals: Eiri Ayano
Composer: Shinichiro Matsumoto
Arranger: Shinichiro Matsumoto
Lyricist: Hinako Konno
Translation: Jenya
M-18, 23 - Ending Theme
Vocals: Jenya
Composer: Shinichiro Matsumoto
Arranger: Shinichiro Matsumoto
Lyricist: Hinako Konno
Translation: Jenya
Над альбомом работало трио композиторов: love solfege (CLOCK ZERO ~終焉の一秒~ Grace note Vol. 2 feat. 真名辺あや & 霜月はるか - Single, レンドフルール オリジナルサウンドトラック - Single), Синъитиро Мацумото (Reine des Fleurs, Shinigami to Syoujyo) и solfa (VenusBlood -GAIA-, VenusBlood -BRAVE-), а его релиз состоялся 25 августа 2021 года. На саундтрек попало 25 композиций. Подборка является компиляцией оригинальной музыки. Выпуском пластинки занимался лейбл Primula.
CD 1
| 1 | some song i forgot | | |
| 2 | The love-gift of fairy-tale | | |
| 3 | Breakfast at cafe | | |
| 4 | Piece of cake | | |
| 5 | sweet sweet dream | | |
| 6 | Run for the Sun! | | |
| 7 | Afternoon tea | | |
| 8 | I have a dream | | |
| 9 | I miss you... | | |
| 10 | "Don’t cry", he said. | | |
| 11 | Never say never | | |
| 12 | Bad dream | | |
| 13 | Waking | | |
| 14 | King and Queen | | |
| 15 | A tale begun in other days | | |
| 16 | Crystal palace | | |
| 17 | Let’s pretend | | |
| 18 | with all of my heart | | |
| 19 | some song i forgot - episode I version | | |
| 20 | some song i forgot - brillante pianoforte | | |
| 21 | some song i forgot - appassionato E.G. ver. | | |
| 22 | some song i forgot - carillon carino ver. | | |
| 23 | with all of my heart (short version) | | |
| 24 | Kagami no Kuni no Symphony | | |
| 25 | Kagami no Kuni no Symphony (short version) | | |
