Koiiro Marriage Character Song & Sound Album
| Published by | luminouscore |
| Catalog number | LSRC-015 |
| Release type | Game Soundtrack - Official Release |
| Format | 1 CD - 25 tracks |
| Release date | October 26, 2012 |
| Duration | 01:10:19 |
| Genres |
| 1 | my sweet heart | 03:28 |  |
| 2 | 思い出のカケラ | 05:02 | |
| 3 | スマイルハッピー | 04:31 | |
| 4 | day bay day | 03:32 | |
| 5 | ふたつの手 | 04:02 | |
| 6 | sunshine step | 02:40 | |
| 7 | POPВ’N SMILE | 02:24 | |
| 8 | 姉妹のテーマ | 03:20 | |
| 9 | 琴城の流儀 | 02:53 | |
| 10 | 静穏な調べ | 02:14 | |
| 11 | 星降る夜 | 02:31 | |
| 12 | 暗い兆し | 01:48 | |
| 13 | urgency | 01:44 | |
| 14 | impulsive attack | 02:32 | |
| 15 | ・・・あれれ！？ | 02:30 | |
| 16 | to feel uneasy | 03:00 | |
| 17 | lost song | 02:07 | |
| 18 | 大切なひと | 01:57 | |
| 19 | memories | 01:29 | |
| 20 | 抑えられない想い | 02:15 | |
| 21 | my sweet heart（piano arrange version） | 02:34 | |
| 22 | 恋のメロディ（action arrange version） | 02:28 | |
| 23 | my sweet heart（action arrange version） | 02:28 | |
| 24 | 恋のメロディ（orgel arrange version） | 02:32 | |
| 25 | 恋のメロディ | 04:18 | |
