I haven't finished this all, but from what I've read I think the premise is quite interesting, although it could be given to the reader more slowly - perhaps talk more about the people becoming angels and demons, maybe even give examples of said angels/demons, so that it's not quite as much a blurb as an actual memory, or somesuch. Then again perhaps you prefer it as more like a passage in a history text, in which case ignore my commentary completely.

As people have noted, a few other grammar errors but alas I am too lazy and 'tis too late at night to go through them now. Sorry. Perhaps tomorrow. Also, why does Zeke have green hair? (If this is explained past the second section, ignore that too.)

Looking forward to the rewrite!