Tracks
| # | Title | Sung by | |
|---|---|---|---|
| 1 | Sincerely | TRUE | 4:35 |
| 2 | 泡影セカイ | TRUE | 4:04 |
| 3 | Sincerely (off vocal) | TRUE | 4:35 |
| 4 | 泡影セカイ (off vocal) | TRUE | 4:04 |
Source: MusicBrainz release group 423c8d2a-1603-42ef-924f-5ab7e4c2e636 (CC0). Cover: Cover Art Archive.
| # | Title | Sung by | |
|---|---|---|---|
| 1 | Sincerely | TRUE | 4:35 |
| 2 | 泡影セカイ | TRUE | 4:04 |
| 3 | Sincerely (off vocal) | TRUE | 4:35 |
| 4 | 泡影セカイ (off vocal) | TRUE | 4:04 |
Source: MusicBrainz release group 423c8d2a-1603-42ef-924f-5ab7e4c2e636 (CC0). Cover: Cover Art Archive.