Board Thread:BlazBlue: Chronophantasma/@comment-2188433-20130812225915

I was looking for some Concept Artworks in BlazBlue: Chronophantasma Material Collection and I noticed something.

http://i1074.photobucket.com/albums/w409/BlazBlueWiki/sameemblem_zps6f6a7eb4.gif

Nu and Mu have Amane's crest in the background. Just an error or maybe it means something? Additionally, they have the same Astral Heat input (222D). 