Tracks
| # | Title | Popular | Duration |
|---|---|---|---|
| 1 | Back!!! | 2:35 | |
| 2 | City | 3:25 | |
| 3 | Don't Worry | 2:33 | |
| 4 | Back!!! (SUMIN Remix) | 2:58 | |
| 5 | City (VCR02 Remix) | 2:56 | |
| 6 | Don't Worry (BRLLNT Remix) | 2:54 | |
| 7 | Back!!! (L-Like Remix) | 2:54 |
| # | Title | Popular | Duration |
|---|---|---|---|
| 1 | Back!!! | 2:35 | |
| 2 | City | 3:25 | |
| 3 | Don't Worry | 2:33 | |
| 4 | Back!!! (SUMIN Remix) | 2:58 | |
| 5 | City (VCR02 Remix) | 2:56 | |
| 6 | Don't Worry (BRLLNT Remix) | 2:54 | |
| 7 | Back!!! (L-Like Remix) | 2:54 |