Included as abonus for the first-press version of the game exclusively at Amazon and Sofmap.
Album was composed by and was released on 2020. Soundtrack consists of 12 tracks tracks with duration over . Album was released by Maid meets Cat.
CD 1
| 1 | Blue and blue ~overture~ | | |
| 2 | Color change | | |
| 3 | Relief | | |
| 4 | Diversion of mind | | |
| 5 | Cat's eye | | |
| 6 | Flower of light | | |
| 7 | Mother's love | | |
| 8 | Play of color (symphony ver) | | |
| 9 | Safe navigation (toyplay ver) | | |
| 10 | Endurance & Sincere love ~finale~ | | |
| 11 | Mother's love (mermaid ver) | | |
| 12 | Mermaid's tears (mermaid ver) | | |
