These are the swaps and motives.
Charlie swaps place with Adam and vice versa
Vaggie swaps place with Lute and vice versa
Sera and Emily swap places
Angel Dust swaps place with Valentino and vice versa
Pentious swaps with Vox and vice versa
Nifty is the Velvette of the group.
Alastor swaps with Rosie and vice versa
Velvette swaps with Zestial (in that she's the oldest overlord in hell)
Zestial swaps with Velvette (but only in the sense that he's the youngest overlord)
Carmilla swaps with Husk and vice versa.
Cherri Bomb swaps with Razzle and Dazzle and vice versa.
And now some explanation of the swap.
Adam was not the first human created. The first one was Lilith. Lucifer asked God create him a wife, and since he was Gods favorite at the time, he did. Adam and Eve work normally and eventualy Cain and Abel. But at some point Able kills Cain (they also swap but it doesn't matter in the long run). After finding out about this Adam pleeds to god to give Abel a second chance, but he refuses, so Adam rebels calling Heaven a fraud, which gets him a ticket straight to hell. For many many years he searcher for his son but with no luck and eventually gives up, but he still has an idea, redeem sinners, but doesn't yet know how. In that time he's taken in by the Morningstar family and they view him kind of like their own son especially Lilith (no adoption though, sorry). At some point the exterminations begin which pushes Adam to start really thinking about his idea to redeem sinners.
In this AU Lute is the one to spare the sinner child and Vaggie cuts out one of her eyes and her wings. While she's left to die in the alley she gets found by Adam who helps her out of the goodness of his own heart and, like in the normal Hazbin between Charlie and Vaggie, it was basically love at first sight. She tells Adam that she was an angel, but not the part about her being an exorcist.
Vaggie is basically just like normal au Lute, no more needs to be said.
Charlie is a sadistic monster here, however thay side is always hidden behind a fake warm smile and a cute and bubbly personality, making anyone that doesn't personally know her think she's a saint who couldn't even think about harming a fly. At some point an angel is sent to hell to see what is happening to make sure they aren't starting an uprising. He gets found by Charlie and she makes him bring her to heaven, which he does. There he meets Emily, the high seraphim and the 2 strike a deal. Heaven send down exorcists every year to kill as many sinners as they can to both prevent an uprise against heaven, and to entertain Charlie's sadistic nature. She eventualy ends up staying in Heaven and nobody opposes her out of fear of making her mad and staring a demon uprising. While she's in Heaven she aslo gets an exorcist assistant, Vaggie.
Sera and Emily are identical to normal them except Sera is the childish one and Emily is the bitch.
Angel dust in this AU is a magia boss who after he died, quickly rose to the rank of overlord. Out of boredom he starts a porn studio with Valentino as his top employee.
Valentino was a male slut when he was alive and after he came to hell, not much changed, except now his soul doesn't belong to him anymore it belongs to Angel Dust, who loves to torture the poor moth.
Pentious is the overlord in charge of Hell's technology, and his marketing has a rather hypnotic effect on people.
Vox is an inventor who's trying to become big in hell, but unlike our normal vox, his head is still an old TV model, like the indestructible ones from like the 80's Also, the egg bois stay unchanged.
