Oh heck yeah, exactly what I was looking for!
First off, before I get to anything else: I love that there was no clear villain. Kinda hard to catch, really, but people really do limit themselves greatly when it comes to options of antagonists. Now, for Age of Fantasy, I get it. There’s a lot of factions crowding the land already.
But Grimdark future? Perfect place to drop the greatest dear mankind has: the unknown.
The allyship felt genuine, two factions believably fighting against an unknowable fear.
Probably my personal favorite story so far.