User blog comment:IamJakuhoRaikoben/Chapter 402: Iron Fist of the Fire Dragon, Review./@comment-121.54.54.47-20140929183935/@comment-25405856-20140929192140

In order to activate Face, someone has to link their body with it so they can control it. As for Etherious, it's basically a more powerful version of demons (it's like dragonforce). (Hopefully that was helpful)