Happy Plan Original Soundtrack
| Composed by | MARINA SUZUKI |
| Published by | INNOVATION CREATIVE INC. |
| Release type | Film Score - Official Release |
| Format | 1 Digital - 8 tracks |
| Release date | November 05, 2014 |
| Duration | 00:20:26 |
| Genres |
| 1 | Sudden Good-ByeMARINA SUZUKI | 04:27 | |
| 2 | Happy PlanMARINA SUZUKI | 00:32 | |
| 3 | On LineMARINA SUZUKI | 01:47 |  |
| 4 | Born AgainMARINA SUZUKI | 02:39 | |
| 5 | Hello, I Am SusuMARINA SUZUKI | 03:19 | |
| 6 | MisunderstandingsMARINA SUZUKI | 03:57 | |
| 7 | Overflowing HeartMARINA SUZUKI | 02:09 | |
| 8 | A Ray of HopeMARINA SUZUKI | 01:36 |
