Kokoro no Wakusei ~Little planets~

 is the seventh single released by Kayo Aiko.

Single Information
 was used as the first ending theme for the anime Ueki no Housoku.

Tracklist

 * 1) Kokoro no Wakusei ~Little planets~ (こころの惑星 ～Little planets～)
 * 2) STEP BACK IN TIME
 * 3) Kokoro no Wakusei ~Little planets~ (こころの惑星 ～Little planets～) (Instrumental)
 * 4) STEP BACK IN TIME (Instrumental)