Shin Megami Tensei RPG.

[DragonMasterX]

That's cool for a setting, but things could kind of get out of control fast if we start out with demons running rampant at anywhere they please. We would get disperse groups of characters that, at the start, isn't recommendable. Maybe we could come up with some sort of secluded area to get everyone accustomed to each other?

Also, I don't know about everyone else but I prefer Shadows to demons. Shadows are cool in the sense they basically are fears or dirty secrets given physical form, which gives a broader menu to everyone to design their own monsters as we go around.

Speaking of Shadows, we also need to come up with a consensuated way to bring Personae to life, like using Evokers (P3) or just surviving against your own Shadow (P4).