Questionable Questing

Stuff like Vampires and Werewolves obviously. Couple demons and cults, since they will all be very interested in Charlie. Not trying to kill her, but corrupt her into the Antichrist role she was destined to play. Acting as some interesting mind games as on the surface they are perfectly loyal to Charlie, but they are also constantly pushing her to expand her empire and make some morally questionable choices.

Maybe some lovecraft stuff too. Not any squids or interdimensional entities. But cursed artifacts that twist people into horrible abominations, a few mad scientist reviving corpses and going full Skaven with their experiments. That kind of stuff would be perfect. Basically I'm going for Hearts of Darkness like you suggested, except a little bit lower power level.

Charlie will always be the top of the food chain, and nobody in the supernatural world disputes that. Nobody will be ending the words or blowing up cities. Instead it'll all be politics and spy games. With all the various supernatural entries having their own goals and trying to push Charlie into helping them.

Magic is all heaven or hell?

I'm leaning towards the idea that magic comes from the earth in like a natural process, with various Keylines formed from the way the stars/planets align. But since earth was created by heaven and is also influenced by hell, it's a fair claim to say that magic does come from them and angels and demons are obviously a lot stronger magically than any human could possibly be.

Or in other words, you don't need heaven or hell to do magic if you have the proper materials, experience, and knowledge. But it definitely makes it a lot easier, especially when you start getting into the higher levels of magic, if you have some extra help. Which speaking of help. I'm sorry. I was supposed to help you with Ygritte.

No big. Focus on this as I like it. Charlie have Vaggie with her too?

Definitely. Without anyone from home, which spoilers she's not going to be able to go back too, Charlie would go a little crazy I think. Which could be a lot of fun, but an unstable Charlie this early in the game prevents her from forming her empire and her army of children. But I'm debating between having Vaggie show up later. Since Charlie wouldn't marry or date anyone else if Vaggie was there with her.

Vaggie show up later sent by Lucifer and Lilith

So my plan so far, is that Charlie is summoned. Spends a couple decades in London, opening up her new Hazbin Hotel and spreading her influence. Slowly meeting all the supernatural factions as she tries to find her way back home. Slowly loses hope, maybe meets a couple guys and gals that help fill the hole in her heart, and give her the first batch of kids.

lol. You ninja'd me. With Vaggie finally showing up right at a pretty pivotal moment for Charlie. Since one of the biggest moments for Charlie, is that one of her first human lovers dies. I'm debating between an unlucky disease, really emphasis the fragility of life, or assassination by a rival forcing Charlie to go all in on killing her enemy's.

But regardless, this is a big turning point because at this point Charlie discovers she can imbue humans with her powers, making them stronger, healing them, allowing her to summon them wherever. But at the cost of not only binding their soul to her and giving her a huge amount of control over them, it also damns them from heaven. Which is such a betrayal of Charlie's core ideas that she never uses it.

Until after her first lover dies and Charlie has a crisis of faith where she realizes she's completely unwilling to give up her husband's and starts finding every way she can to keep them with her forever. Thus really acting as one of the biggest turning points for her. SInce now she's actively trying to corrupt and control people, as well as ruthlessly purging her enemies all for their own good.

I sleep. I am liking this premise. Talk more of it later

Sleep well.

Bimbo daughters than Ygrite

This one's pretty cute.

And surprisingly realistic.

Now daughters with dads. No loli

Might take me a little while. lol. How flexible are we on the Loli front? Because that's like eighty percent of it.