Please do, give him a challenge. Something that's going to keep him on his toes and whet the need to actually fight. He's picked the right person to just pick one with. What he is or isn't doesn't matter at the end of the day. "Depends again who you ask and what demon means to them, but demon it is. Welcome to your new life, Mister Demon."

He lets his head lean back so he can look upward instead, the sky is bleary as always. "What an exciting place. You get to wonder what happens next, when it does, and then you get to fight it. Or not."