Hazbin Hotel: Remnants of The Past
Three years have passed after the last Extermination event and Adam's death. Charlie Morningstar, although having (Unknowingly) successfully redeemed Sir Pentious, even though the Hazbin Hotel is more popular than ever, she's having trouble coming to grips with the possibility that, at any moment, a vengeful Heaven could send Exterminators down to Hell, or even worse Invade. That is when one day, she meets someone from her past that she hasn't seen in a while. Her uncle, Ischyr, The Sin of Violence and she hopes he can help her with her dilemma.
(This was written before Season 2's release and thus won't exactly have any lineup similar with season 2 or any future season)