All music composed & arranged by Takefumi Haketa
(except M-20 composed by Kentarou Kobuchi, Syunsuke Kuroda)
Piano, Programming, Pianica, Toy Piano /
Acoustic Guitar, Gut Guitar, Ukelele, Charango / Koichiro Tashiro
Harmonica, Bass Harmonica, Spoons / Koichi Matsuda
Strings / Hitoshi Konno Strings
Oboe / Takayuki Mogami
Clarinet / Makoto Hirahara
Recorder / Takashi Yasui
Trumpet / Masahiko Sugasaka
Programming / Nobuyuki Ohyagi
Recorded and Mixed by Daiei Matsumoto
Recorded at Sony Music Studios Tokyo
Mixed at STUDIO BLAN
Assisted by Yuta Yoneyama (Sony Music Studios Tokyo), Tohru Kumade (STUDIO BLAN)
Mastered by Yuji Chinone at Sony Music Studios Tokyo
Recording Coordination / Toshihiro Hachiska
Artist Management / Toshihiro Hachiska, Ken Suzuki
Thanks / Kaori Minegishi
A&R / Haruhiro Urata (NTVM), Naotaka Maeda (VAP)
Art Direction & Design / Hitoshi Tsuji, Yasutaka Kimura, Shin Koujima (NTVART)
Executive Producer / Yusuke Horigome (NTVM), Kazuo Sato (VAP)
Album was composed by Kentarou Kobuchi / Syunsuke Kuroda / Takefumi Haketa and was released on November 26, 2008. Soundtrack consists of 21 tracks tracks with duration over about 50 minutes. Album was released by vap, VAP Inc..
CD 1
| 1 | オー!マイ･ガール!! ～Main Theme～ | 03:49 | |
| 2 | Music Box | 02:00 | |
| 3 | 帰り道 | 02:49 | |
| 4 | 運命 | 02:26 | |
| 5 | 杏の優雅なワルツ | 02:34 | |
| 6 | 大切なもの | 02:38 | |
| 7 | それゆけ!耕太郎!! | 01:49 | |
| 8 | ファイトだぜ!耕太郎!! | 02:08 | |
| 9 | Main Theme ～Piano Solo～ | 02:07 | |
| 10 | 素敵な予感 | 02:15 | |
| 11 | 小悪魔 | 02:03 | |
| 12 | ちょっと切ない気持ち | 02:01 | |
| 13 | Main Theme ～Piano&Strings Orchestra～ | 03:21 | |
| 14 | カニブックス | 01:59 | |
| 15 | 子役の仕事は大変! | 02:10 | |
| 16 | あこがれ | 02:13 | |
| 17 | あこがれ ～Piano Solo～ | 01:32 | |
| 18 | 事件!! | 01:44 | |
| 19 | 悪い予感 | 02:08 | |
| 20 | 時の足音 ～Instrumental～ | 02:53 | |
| 21 | 恋 | 01:57 | |
