Koi Tsubomi

 is the third single released by Oku Hanako. It was released on February 15, 2006, and peaked at #67 on the Oricon single chart.

Tracklist

 * 1) Koi Tsubomi (恋つぼみ)
 * 2) Koi Tsubomi (恋つぼみ) (Piano Hikigatari)