A3! VIVID WINTER EP
| Composed by | Gesshoku Kaigi / Kohei Tanaka / R·O·N / Ryota Suemasu |
| Arranged by | Gesshoku Kaigi / Hero Nakamura / Junpei Fujita / R·O·N |
| Published by | Pony Canyon |
| Catalog number | PCCG-01714 |
| Release type | Game Soundtrack - Official Release |
| Format | 1 CD - 8 tracks |
| Release date | November 07, 2018 |
| Duration | 00:37:24 |
| Genres |
| 1 | Precious to us～僕らの季節～ | 05:12 | |
| 2 | UNMASK | 05:02 | |
| 3 | 獨行道 | 04:28 | |
| 4 | DEFRAGMENTATION | 04:01 | |
| 5 | Precious to us～僕らの季節～ (INSTRUMENTAL) | 05:12 | |
| 6 | UNMASK (INSTRUMENTAL) | 05:02 | |
| 7 | 獨行道 (INSTRUMENTAL) | 04:28 | |
| 8 | DEFRAGMENTATION (INSTRUMENTAL) | 03:59 |
