| # | Track | Duration |
|---|---|---|
| 1. | Sky (Special Dance-Sky Short Version Medley) | 05:07 |
| 2. | Sky | 06:34 |
| 3. | No Pain No Gain | 04:52 |
| 4. | Asuwakurukara (2 Future club mix) | 06:46 |
| 5. | Sky (Less Vocal) | 06:33 |
| 6. | No Pain No Gain (Less Vocal) | 04:48 |
- pop6
| # | Track | Duration |
|---|---|---|
| 1. | Sky (Special Dance-Sky Short Version Medley) | 05:07 |
| 2. | Sky | 06:34 |
| 3. | No Pain No Gain | 04:52 |
| 4. | Asuwakurukara (2 Future club mix) | 06:46 |
| 5. | Sky (Less Vocal) | 06:33 |
| 6. | No Pain No Gain (Less Vocal) | 04:48 |