Rainbow☆Smile

Rainbow☆Smile is the second single by Nijiiro★STAR.

Tracklist

 * 1) Rainbow☆Smile
 * 2) Hatsukoi Syndrome (初恋シンドローム)
 * 3) Rainbow☆Smile -off vocal-
 * 4) Hatsukoi Syndrome (初恋シンドローム) -off vocal-