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Disc1
| 1 | Good Luck (Japanese version) | AOA | 3:08 |
| 2 | 10 Seconds (Japanese version) | AOA | 3:55 |
| 3 | Really Really (Japanese version) | AOA | 3:53 |
| 4 | Good Luck (karaoke version) | AOA | 3:08 |
| 5 | 10 Seconds (instrumental) | AOA | 3:54 |
| 6 | Really Really (instrumental) | AOA | 3:54 |