Koko Kara Hajimarunda! ここから始まるんだ！
Released July 11, 2012 Editions 4 Tracks 3
Regular edition · Regular
| 1 | Koko Kara Hajimarunda! | A-side |
| 2 | 17sai | B-side |
| 3 | Koko Kara Hajimarunda! (Instrumental) | |
| 4 | 17sai (Instrumental) |
Limited edition · Limited A
| 1 | Koko Kara Hajimarunda! | A-side |
| 2 | 17sai | B-side |
| 3 | Koko Kara Hajimarunda! (Instrumental) | |
| 4 | 17sai (Instrumental) |
Limited edition · Limited B
| 1 | Koko Kara Hajimarunda! | A-side |
| 2 | Kaze no You na Melody | B-side |
| 3 | Koko Kara Hajimarunda! (Instrumental) | |
| 4 | Kaze no You na Melody (Instrumental) |
Other edition · Ticket CD
| 1 | Koko Kara Hajimarunda! | A-side |