Tracks
| # | Title | Sung by | |
|---|---|---|---|
| 1.1 | tAttoo | 相川七瀬 | 3:49 |
| 1.2 | Back to the day | 相川七瀬 | 3:58 |
| 1.3 | DAHLIA 〜you’re my universe version〜 | 相川七瀬 | 5:59 |
| 2.1 | tAttoo (MUSIC CLIP) | 相川七瀬 | |
| 2.2 | Back to the day (MUSIC CLIP) | 相川七瀬 |
Source: MusicBrainz release group 963fedfb-f07a-48ac-a148-df608caec38a (CC0). Cover: Cover Art Archive.