Album was composed by Yoshihiro Ike and was released on October 15, 2014. Soundtrack consists of 31 tracks tracks with duration over about 30 minutes. Album was released by Oh Brother, Oh Sister! Film Partners.
CD 1
| 1 | Onodera No Otouto Onodera No Ane Opening ThemeYoshihiro Ike | 00:30 | |
| 2 | Onodera Shitei No Yubin HaitatsuYoshihiro Ike | 01:53 | |
| 3 | Unmei No DeaiYoshihiro Ike | 00:21 | |
| 4 | Yoshimi No Omoide 1Yoshihiro Ike | 00:35 | |
| 5 | Kaori SagashiYoshihiro Ike | 00:39 | |
| 6 | Cowboy No ShitsurenYoshihiro Ike | 00:35 | |
| 7 | Yoriko No OmoiYoshihiro Ike | 00:58 | |
| 8 | Onodera Shitei No Nichijyou 1Yoshihiro Ike | 01:26 | |
| 9 | Onodera Shitei No Nichijyou 2Yoshihiro Ike | 00:21 | |
| 10 | Ehon No KanojyoYoshihiro Ike | 00:51 | |
| 11 | Mihappyou Kyoku1 Ehon No Kanojyo Betsu VersionYoshihiro Ike | 00:56 |  |
| 12 | Susumu to Yoriko No ShokutakuYoshihiro Ike | 00:08 | |
| 13 | Susumu No Chiisana IppoYoshihiro Ike | 00:10 | |
| 14 | Yoriko No Chiisana IppoYoshihiro Ike | 00:08 | |
| 15 | Kagunda PeroYoshihiro Ike | 01:15 | |
| 16 | Ganbare NeechanYoshihiro Ike | 00:40 | |
| 17 | Yoshimi No Omoide 2Yoshihiro Ike | 00:20 | |
| 18 | Mihappyou 2Yoshihiro Ike | 00:07 | |
| 19 | SurpriseYoshihiro Ike | 01:32 | |
| 20 | Mihappyou 3Yoshihiro Ike | 00:51 | |
| 21 | Nise DarlingYoshihiro Ike | 01:34 | |
| 22 | Mihappyou 4Yoshihiro Ike | 00:26 | |
| 23 | Ane E No OmoiYoshihiro Ike | 00:28 | |
| 24 | Yoshimi No Omoide 3Yoshihiro Ike | 02:31 | |
| 25 | Otouto E No OmoiYoshihiro Ike | 02:25 | |
| 26 | Susumu No Date 1Yoshihiro Ike | 00:36 | |
| 27 | Susumu No Date 2Yoshihiro Ike | 01:32 | |
| 28 | Yoriko No DateYoshihiro Ike | 00:34 | |
| 29 | KitakuYoshihiro Ike | 02:23 | |
| 30 | Mihappyou 5Yoshihiro Ike | 01:07 | |
| 31 | Onodera No Otouto to Onodera No AneYoshihiro Ike | 00:57 | |
