Ohhh thank you so much~ i put a lot of work into him in particular, so its nice to hear! :D

and ohhh yes, he does return to Hell at the end of the series, and while he remains stubborn and does not want to re submit to his king, he eventually caves enough to ensure his own safety even though he hates himself for it. Thats about where I leave him in the main story tho. he doesn't exactly have the happiest end. I guess it sucks to be evil haha, maybe if he was a little more behaved he'd have more friends willing to help him, but alas. The boy has an attitude he can't quite shake. 

BUT there are a few AUs that ive dabbled in where he does make a human friend who helps him fight back a bit. This usually leads to Char reincarnating into a new body and living life as something else, or living out his days in hiding within the Hell world constantly watching his back for bounty hunters.