Some background of the Hellfire!AU (which is another AU with demons but as demon!Doppio and demon!Diavolo as villian protagonists) that will make some sense:
> Diavolo is the leader/king of what is known in hell as the Crimson Court and Doppio is his right hand man/'prophet'; whilst the territory is sizable by demon standards, Diavolo also does want to over take the human/earthly realm, even if it takes years to do so.
> The settlements surrounding the castle these two live in have an almost cultlike devotion to the entirety of the Crimson Court, up to elevating the two to near deity status (Diavolo is not thrilled about this, but does admit the worship does stroke his ego a little while Doppio has to 'occasionally' keep him in check)
> Diavolo- being, well, Diavolo- managed to convince his followers that looking at his bare visage is a extremely bad omen and even wears a full plate of dragon-eqse armor to sell the lie; the humans that haven't been turned wear blindfolds (not entirely pointless outside of that, as said blindfolds are enchanted to show those wearing them an idealized version of their reality than what is really there) and those higher in rank even voluntarily blind themselves by basically skewering their eyes out with specialized masks.
> Most of the guards and warriors that work for Diavolo are... exceptionally violent; some rivaling armies find most of their members mercilessly slaughtered and are driven to get the fuck out. (Body death is not a hamper for demons but like. Getting straight up decapitated because the demon in charge basically just said no quarter to enemies is not a fun ride)
> While Diavolo had basically lied about looking for a bride/groom/yes to the public, he's secretly married to Doppio. (their followers may be catching on, though. there's more than enough 'shipping art' that has been confinscated from followers to fill several books.)
#AUs #loredump #worldbuilding #demonAU #ficmusing #jjba #doppio #diavolo