421-a will-
| Composed by | C.G mix / Tomoyuki Nakazawa |
| Arranged by | C.G mix / Takeshi Ozaki / Tomoyuki Nakazawa |
| Published by | Geneon Entertainment |
| Catalog number | GNCA-0017 |
| Release type | Game Soundtrack - Official Release |
| Format | 1 CD - 4 tracks |
| Release date | October 13, 2005 |
| Duration | 00:10:47 |
| Genres |
M01
Composition: Tomoyuki Nakazawa
Arrangement: Tomoyuki Nakazawa, Takeshi Ozaki
M02
Composition & Arrangement: C.G mix
Composition: Tomoyuki Nakazawa
Arrangement: Tomoyuki Nakazawa, Takeshi Ozaki
M02
Composition & Arrangement: C.G mix
| 1 | 421-a will- | 04:53 | |
| 2 | 秋爽 | 05:54 | |
| 3 | 421-a will-（Instrumental） | ||
| 4 | 秋爽（Instrumental） |
