Sekai wa Summer Party 世界は サマー・パーティ
Released July 29, 2009 Editions 6 Tracks 1
Regular edition · Regular
| 1 | Sekai wa Summer Party | A-side |
| 2 | Jasmine Tea | |
| 3 | Sekai wa Summer Party (Instrumental) |
Limited edition · Limited A
| 1 | Sekai wa Summer Party | A-side |
| 2 | Jasmine Tea | |
| 3 | Sekai wa Summer Party (Instrumental) |
Limited edition · Limited B
| 1 | Sekai wa Summer Party | A-side |
| 2 | Jasmine Tea | |
| 3 | Sekai wa Summer Party (Instrumental) |
Limited edition · Limited C
| 1 | Sekai wa Summer Party | A-side |
| 2 | Jasmine Tea | |
| 3 | Sekai wa Summer Party (Instrumental) |