Ayakashi Contract SPECIAL DISC
| Composed by | Hashizaki Tooru |
| Arranged by | Hashizaki Tooru |
| Published by | AXL |
| Catalog number | AXL-0058 |
| Release type | Game Soundtrack - Promo / Enclosure |
| Format | 1 CD - 6 tracks |
| Release date | May 29, 2015 |
| Duration | 00:15:28 |
| Genres |
| 1 | 虹色スプリング | 03:43 | |
| 2 | 虹色スプリング off vocal | 03:43 | |
| 3 | 虹色スプリング カラオケ ver | 03:43 | |
| 4 | 虹色スプリング Short ver | 01:27 | |
| 5 | 虹色スプリング off vocal short ver | 01:27 | |
| 6 | 虹色スプリング カラオケ short ver | 01:25 |
