[quote=@Arty Fox]
Well why not Earth? As in the earth where all these characters are supposed to be fictitious/non-existant? It could be our characters arrive through various means in around about the same area as The Incubators when they start harvesting peoples souls.
Although at that point I doubt our characters would be strong enough to fend them off for long so they'd have to retreat with the Incubators hot on their tail. Then we get to the whole bit of them being safe and asking questions about what happened, who each of them are, what to do. ect. :3

Also might be a good idea to drag in that exposition bit from the sign up onto here for future reference.
[/quote]

I often tend to start Multiverse games with Earth with that exact idea in mind. However, I wanted to change it up and make it in medias res. I agree with what you're saying and that in any other situation, I'd do that, but I sort of had the idea of the characters already traveling the Multiverse and starting the RPG a good bit of time in their travels.

[quote=@Alan Hawke]
How about Doctor Doom or Maleficent begin to take control of the multiverse with the Infinity Gauntlet?
[/quote]

While that sounds sweet, it's more like endgame material than early game material. 

As with the Incubators themselves...

[hider=World Building Info]
As stated in the signups, the Incubators aren't exactly packing heat, but rather their [i]supporters[/i]. They're either supportive of Kyubey's intent or they're obsessed with making the worlds despair or whatever. The Incubators just accept them as "humans who understand" and travel with them to help make contracts.
[/hider]

I have a starter villain in mind. An original character that'll highlight a bit of the Multiverse's dark secret.