Bitter Choco Valentine

 is the second single by Lovely☆DOLL. It was released on February 5, 2013, and peaked at #24 on the Oricon single chart.

Tracklist

 * 1) Bitter Choco Valentine (ビターチョコ・バレンタイン)
 * 2) Airplane (エアプレーン)
 * 3) Bitter Choco Valentine (Instrumental)
 * 4) Airplane (Instrumental)