Tracks
| # | Title | Sung by | |
|---|---|---|---|
| 1 | marble heart | 初星学園、姫崎莉波 | 3:39 |
| 2 | marble heart [Instrumental] | 初星学園 | 3:39 |
Member reviews
Source: MusicBrainz release group efff4ac2-7ab1-48b3-aad2-6a5eb51891cd (CC0). Cover: Cover Art Archive.
| # | Title | Sung by | |
|---|---|---|---|
| 1 | marble heart | 初星学園、姫崎莉波 | 3:39 |
| 2 | marble heart [Instrumental] | 初星学園 | 3:39 |
Source: MusicBrainz release group efff4ac2-7ab1-48b3-aad2-6a5eb51891cd (CC0). Cover: Cover Art Archive.