User blog comment:IamJakuhoRaikoben/Chapter 379: Tartarus Arc, Part 3: Underworld King, Review./@comment-5598380-20140404081256/@comment-4829046-20140404144530

Technically one can still be evil while still helping people out cause something does not sit right with his beliefs. Hades wanted a world with only mages that can wield magic properly and Demons are going against that so would make sense for him to help FT out.

Just remembered that Matal Morgamett is a variation of Hades.... Not a pleasant revelation.