According to the Dictionnaire Infernal, Xaphan was one of those misbegotten fallen angels who rebelled against God alongside Satan. He is a demon of the 2nd rank who has a supposed creative and rather inventive mind, coming up with the idea to set fire to heaven, before he and the other apostates were speared down to the eternal bowels of fire. He carries a bellows as an emblem, but, poor bugger, must fan the flames of the abyss with his mouth and hands. He is sometimes known as the Angel of Invention (just for wanting to burn down heaven..?, now every damn arsonist will be claiming genius).
I’ve also heard it whispered that Xaphan himself is rather shy and self effacing. Thus, if you ever encounter him and find him to be glum and unresponsive, be nice, the poor thing has spent eons blowing air into the fallen Archangel’s belly and involuntarily bursting into flame whenever he tries to talk, not to mention having to passively listen to many other demons’ jibes and jokes about having to fan the fires for eternity with his mouth. He may even regret the untold lengths of time he has been without wings and God’s gracious prescence. All in all Xaphan probably just wants some half decent company who can show him round the playground he was never able to explore himself since bypassing it entirely on the way to hell.
On the flipside, ‘…one should never mistake a shy & wary nature for weakness, or take such characteristics for granted, this is game-play fit only for idiots who don’t know they are idiots, pretend zen monkeys masquerading as rice stick charmers and the like…’ (as quoted from The Diabolical Book of Idiocy as Uttered from a Nebulous Etheric Heretic, 2012).
Lastly, you really shouldn’t be reading these things, it’s terribly dangerous, since calling an Angels Name (fallen or no) is asking this angelic energy to make itself known to you. Glad I dropped that in at the end. The song below will however clear the decks of any and all stickiness related above.