Album Intro
Red Velvet 迷你日語專輯第二輯！包含1月公開的〈SAPPY〉等3首原創曲、去年的熱門曲〈Power UP〉日語版等，共收錄６首日語曲目。
Full Track
| 1 | SAPPY | 03:19 | |||
| 2 | Swimming Pool | 03:20 | |||
| 3 | Sayonara | 03:15 | |||
| 4 | Peek-A-Boo (Japanese Version) | 03:09 | |||
| 5 | Rookie (Japanese Version) | 03:16 | |||
| 6 | Power Up (Japanese Version) | 03:25 |