Music by Masato Kouda
M-01 - Theme Song
Performer: nano
Composer: Masato Kouda
Arranger: Masato Kouda
Vocal: nano
M-28 - Ending Theme
Performer: marina
Composer: Masato Kouda
Arranger: Masato Kouda
Lyricist: Kento Hasegawa
First Press/Preorder Bonus for CONCEPTION PLUS: Ore no Kodomo wo Undekure!.
Album was composed by Masato Kouda and was released on January 31, 2019. Soundtrack consists of 28 tracks tracks with duration over . Album was released by Spike Chunsoft.
CD 1
| 1 | Destiny ～ 第12次的奇跡~ (Short Ver.) | | |
| 2 | 序章 | | |
| 3 | 混沌 | | |
| 4 | 樹蔭下的朋友 ～星神學園～ | | |
| 5 | 光暈 | | |
| 6 | ABANDON ORDER | | |
| 7 | 宴會時光 | | |
| 8 | 無法成聲的憂鬱 | | |
| 9 | pledge | | |
| 10 | secret! | | |
| 11 | dungeon ambient(autumn-winter Lv2) | | |
| 12 | dungeon ambient(Last 1) | | |
| 13 | dungeon battle Lv2 | | |
| 14 | sweeping victory | | |
| 15 | 碧色循環～艾麗主題曲～ | | |
| 16 | 向日葵的黃昏～妲露雅主題曲～ | | |
| 17 | 雙子無雙～莉莉絲主題曲～ | | |
| 18 | 向白三葉草祈禱～琉華主題曲～ | | |
| 19 | 獅子之心，越過草原～菲米露娜主題曲～ | | |
| 20 | 少女的情況～真晝主題曲～ | | |
| 21 | 月光的魔術～未澪主題曲～ | | |
| 22 | 蠍子的戒律～蕾歐涅主題曲～ | | |
| 23 | 言語狙擊手～蘇主題曲～ | | |
| 24 | 降下流星的舞台～法瑠主題曲～ | | |
| 25 | 命運之水～柯雷特主題曲～ | | |
| 26 | 虹色繪具～柚葉主題曲～ | | |
| 27 | 總有一天，朝向閃爍的星～芽妃主題曲~ | | |
| 28 | Birth ～悠久的巡星～ | | |
