Secret Story
| Artist | Planet Walker Project |
| Record Labels | 아이엠비씨 |
Song List
| Song | Artist | Album | Lyrics |
|---|---|---|---|
| 숨겨둔 이야기 (Ver.C) | Planet Walker Project YoungStar | Secret Story | |
| 숨겨둔 이야기 (Ver.C) (inst.) | Planet Walker Project | Secret Story |
| Artist | Planet Walker Project |
| Record Labels | 아이엠비씨 |
| Song | Artist | Album | Lyrics |
|---|---|---|---|
| 숨겨둔 이야기 (Ver.C) | Planet Walker Project YoungStar | Secret Story | |
| 숨겨둔 이야기 (Ver.C) (inst.) | Planet Walker Project | Secret Story |