Included with the North American and European Pen Pal Edition of the game, sold exclusively on Rice Digital.
Notes from Parent Album:
Included with the Premium Edition of the game.
Над альбомом работал композитор Takashi Nitta (WORLDEND SYNDROME, √Letter PREMIUM SOUNDTRACK, Tokyo Ma-Jin High School Gekkouden Shihen ~ Yuki Machi), а его релиз состоялся года. На саундтрек попало 30 композиций общей длительностью около 50 минут. Подборка является компиляцией оригинальной музыки. Выпуском пластинки занимался лейбл PQube.
CD 1
| 1 | Over the truth | 01:54 | |
| 2 | 過客 | 01:30 | |
| 3 | Pen friend | 01:37 | |
| 4 | Tears | 01:54 | |
| 5 | Phantom | 02:02 | |
| 6 | Enigma | 00:38 | |
| 7 | Shadow | 00:58 | |
| 8 | Missing | 01:40 | |
| 9 | Labyrinth | 01:18 | |
| 10 | Broken piece | 01:16 | |
| 11 | Stand up | 01:14 | |
| 12 | Distance | 01:44 | |
| 13 | Lock on | 01:36 | |
| 14 | Break out | 01:19 | |
| 15 | Break through | 01:24 | |
| 16 | Break down | 01:26 | |
| 17 | Sepia | 01:30 | |
| 18 | Aqua | 01:36 | |
| 19 | 和-Nagomi | 01:39 | |
| 20 | Bad guy Remember | 01:26 | |
| 21 | Kogumo in the bath | 01:33 | |
| 22 | In the Deep Forest | 02:27 | |
| 23 | Shimane with the cat | 01:48 | |
| 24 | Water Works | 00:56 | |
| 25 | Unknown Feel Ohmygad | 01:34 | |
| 26 | Sharman | 02:14 | |
| 27 | So Fiction | 02:45 | |
| 28 | 俺の瞳は本気だぜ | 01:13 | |
| 29 | Labyrinth(PV Version) | 00:36 | |
| 30 | メインテーマ Version 3 | 02:19 | |
