Original video (Feb 14 by 逆さまの蝶):
http://www.nicovideo.jp/watch/sm20087001
Dancer:
Miao【みあお】http://www.nicovideo.jp/mylist/33958097
Choreography:
Bukki【ぶっきー】http://www.nicovideo.jp/mylist/28512044
http://www.nicovideo.jp/watch/sm19364520
Song:
Confession Rehearsal/告白予行練習 - HoneyWorks feat. GUMI
http://www.nicovideo.jp/watch/sm19218102