Oh please, it says in the game that he was blessed by a SERAPHIM. Therefore if he is a demon then you must submit to the fact that a Demon accepted a blessing of an Angel in order to *Ahem* [i]'rekt'[/i] more demon ass! *BANGS HEAD TO METAL MUSIC*

EDIT: I wonder if Aeris could make someone as badass as the MUTHERFUCKIN DOOOOMGUUUUUUY!?