Well, right...okay. So in the aftermath of the war, Earth was the only habitable planet. It was devastating, to say the least. [She's not entirely sure she can easily explain Saturn and the Silence Glaive, so she'll leave it at that.]

All of us were reborn on Earth because of that, and I believe because the Queen wanted us there to await the return of the evil being that caused the war.

But, you know, every planet has one of us. I've met others from other places, planets that orbit distant stars. [The Starlights, Galaxia...]

That's, kind of the basics, anyway.