Death of humanity

Lazarius is the worst god of the dead ever seen in the history of gods. His brothers and sisters rule the pantheon with an iron fist, and he can barely keep authority. And because of it, he's lost his place in the throne room, and now he can't even show his face. His siblings are mistreating him, and his fellow gods are pretending he doesn't exist.

And he lives alone in the underworld. There's only so much you can do in hell. His magic is powerful but he can't control it. He's wise but nobody will listen to him. He's strong but nobody will trust him to fight for them. While his siblings and fellow gods and goddesses are out fighting wars for survival, he's stuck. Alone.

Worst of all, his magic is acting up. There's too much of it and he feels like he's about to explode at every given moment, which is probably a bad thing. And now that a bunch of his damned souls have escaped, he needs to find a way to round them up and bring them back, and figure out how they escaped in the first place.

And now, some god has arrived in the underworld, demanding that he be taught. Lazarius just can't wrap his head around everything that's happening, and his dodgy magic seems to tune into that distress.... which is definitely a bad thing.