Tracklist
| –Tohoshinki | If...!? | 3:32 |
| –Junsu From 東方神起* | Rainy Night | 4:17 |
| –Tohoshinki | If...!? (Less Vocal) | 3:28 |
| –Junsu From 東方神起* | Rainy Night (Less Vocal) | 4:15 |
Versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| RZCD-45859 | Tohoshinki / Junsu From 東方神起* | Tohoshinki / Junsu From 東方神起* - If...!? / Rainy Night (CD, Maxi) | Rhythm Zone | RZCD-45859 | Japan | 2008 |
| AAJSG50004 | Tohoshinki / Junsu From 東方神起* | Tohoshinki / Junsu From 東方神起* - If...!? / Rainy Night (CD, Maxi) | Avex Trax, Rhythm Zone | AAJSG50004 | Hong Kong | 2008 |
