Seishun no Serenade 青春のセレナーデ
Released January 26, 2011 Editions 4 Tracks 2
Regular edition · Regular
| 1 | Seishun no Serenade | A-side |
| 2 | 21seiki Teki Renai Jijou | B-side |
| 3 | Seishun no Serenade (Instrumental) |
Limited edition · Limited A
| 1 | Seishun no Serenade | A-side |
| 2 | 21seiki Teki Renai Jijou | B-side |
| 3 | Seishun no Serenade (Instrumental) |
Limited edition · Limited B
| 1 | Seishun no Serenade | A-side |
| 2 | 21seiki Teki Renai Jijou | B-side |
| 3 | Seishun no Serenade (Instrumental) |