Touhou/Far in the distance -4 Ever- – Are you NUTS!?!

Engrish FTW.  The song is inspired by the character Rumia, a rather weak (or at least to the main characters) man eating youkai.  A real quick explanation would follow along the line that Rumia has a charm in the form of a bow in her hair.  If that bow is removed she becomes very powerful, and thus the bases of the video, and probably the song.