"Yo, it's me, Queen of the Dead. Hm? Hades? Oh, my dad's not here. I'm sure you were dying to see him, but the ol' Styx and Stones broke his bones. But don't worry, I'm less of a hothead than him. A little less."

Following the events of Disney's Hercules, peace has returned to Ancient Greece. However, with Hades currently missing in the Underworld, it's up to his children to take up his mantle. Melinoe now leads the Underworld as a far more benevolent ruler than her father ever was, trying to make the lives of those who pass on easier, rather than letting them suffer.

However, her brother, Zagreus, is more focused on getting revenge for what happened to their father, seeking to bring back Hades and the Titans to launch an assault on Mount Olympus to...not quite great results.

As for where you fit in, you've arrived in the Underworld for whatever reason that might've brought you here. Perhaps you are the soul of someone who died. Maybe you are a curious demigod. Or maybe you're a monster looking to cause chaos in the Underworld.

Either way, this scenario is intended to be lighthearted with some world building from the original movie to work with, so feel free to go whichever way you like with the scenario.