DXD: The Greater Evil

(Slightly Remade. Just dumped it out of my drafts since ill move on to make an original on another platform soon. I am DEFINITELY redoing this cover, since I liked this story enough to do so.)
This story starts off with a shit ton of cool prologue backstory info dump. It's cool and worth the read I I promise.

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Angels, the lesser good.
Devills, the lesser evil.

And the demons... who would devour them all. If it wasn't because of "them", it could have happened.
The demons would have lived to see the future. The demons would have ruled the future. But it was those people who came at the last moment.
Not heroes. But protectors of humanity. And the Demons were gone

"Hey, you missed a spot."

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Any form of media used is not made by me (unless it has my username on it) cool? Nice.