Domo

Domo is a demonic lackey who originally served Yves Manion, then Duke Abaddon himself.  However, after Giselle defeated both of them, he pledged his service to Giselle herself.  She tricked him into thinking she was infiltrating the Nouveau guild and now, he serves his “dark mistress” by cleaning out her secret base on the moon. 
 
Domo is also the cousin of Momo, one of Darrow’s henchmen.