Sekaijuu ni Kimi wa Hitori Dake / Valentine's RADIO / Chocolate Damashii 世界中に君は一人だけ／Valentine's RADIO／チョコレート魂
Released January 16, 2013 Editions 4 Tracks 3
Limited edition · Limited A
| 1 | Sekaijuu ni Kimi wa Hitori Dake | A-side |
| 2 | Valentine's RADIO | A-side |
| 3 | Chocolate Damashii | A-side |
| 4 | Sekaijuu ni Kimi wa Hitori Dake (Instrumental) | |
| 5 | Valentine's RADIO (Instrumental) | |
| 6 | Chocolate Damashii (Instrumental) |
Limited edition · Limited B
| 1 | Valentine's RADIO | A-side |
| 2 | Chocolate Damashii | A-side |
| 3 | Sekaijuu ni Kimi wa Hitori Dake | A-side |
| 4 | Valentine's RADIO (Instrumental) | |
| 5 | Chocolate Damashii (Instrumental) | |
| 6 | Sekaijuu ni Kimi wa Hitori Dake (Instrumental) |
Limited edition · Limited C
| 1 | Chocolate Damashii | A-side |
| 2 | Sekaijuu ni Kimi wa Hitori Dake | A-side |
| 3 | Valentine's RADIO | A-side |
| 4 | Chocolate Damashii (Instrumental) | |
| 5 | Sekaijuu ni Kimi wa Hitori Dake (Instrumental) | |
| 6 | Valentine's RADIO (Instrumental) |
Limited edition · Limited D
| 1 | Sekaijuu ni Kimi wa Hitori Dake | A-side |
| 2 | Valentine's RADIO | A-side |
| 3 | Chocolate Damashii | A-side |
| 4 | Sekaijuu ni Kimi wa Hitori Dake (Instrumental) | |
| 5 | Valentine's RADIO (Instrumental) | |
| 6 | Chocolate Damashii (Instrumental) |