Simple

 was the fifth single released by Belly to Belly.

Tracklist

 * 1) Simple “Original Mix” (シンプル “Original Mix”)
 * 2) GIFT “Original Mix”
 * 3) Simple “Yuta’s childhood mix”
 * 4) GIFT “BUZZ BEAT MIX”
 * 5) Simple “Huge engrossing mix”
 * 6) Simple “Original Mix -instrumental-”
 * 7) GIFT “Original Mix -instrumental-”

Featured Members

 * NANAKO
 * YOZO
 * RYOTA