So Happy

 is the second single by Uchida Aya. The lead track was used as the ending theme for the anime Omae wa Mada Gunma wo Shiranai.

Single Information

 * Catalog Number: COCC-17449 (Regular Edition), COZC-1434-5 (Limited Edition)
 * Price: ￥1,300 (Regular Edition), ￥1,900 (Limited Edition)
 * Lyrics: Nakamura Kanata (Track 1), Kaneko Mayumi (Track 2)
 * Composition: Komatsu Hideyuki (Track 1), Watanabe Toshihiko (Track 2)
 * All Arrangement: Sato Seiki

CD

 * 1) So Happy
 * 2) Sweet Little Journey
 * 3) So Happy (Instrumental)
 * 4) Sweet Little Journey (Instrumental)

Limited Edition DVD

 * 1) So Happy (Music Video)
 * 2) So Happy (Making Video)