Hey, since you most likely know what happens in Hazbin Hotel season 1, after making comments on my story referencing the show, then I'm confident that you know about Sera, Emily, Adam the original dick(head) and Lute.
I've been thinking of putting the show in the universe of ODAL, just like how I combined both Transformers and Murder Drones universes together.
In ODAL, Sera knows of the existence of Cybertron, the cybertronians and the Great War long before human kind's beginning. You know that the reason Sera gave the "OK" for the exterminations is because of her fear of Hell's residents rising against and destroying Heaven.