Overall it was an enjoyable read, although i wish i could see more of this world. This last chapter especially introduced other interesting ideas to Gaia's (Earth?) history.
Conversely i'm not sure i wholly appreciate the anti-vengeance themes. This very chapter we saw the empire committing atrocities once again.
Also if i got this right Hyuu and Myuu stand for "humans" and "mutants". Prome was called "khaa" at some point, maybe it stands for kami = god in japanese?
The name Prome could be as well an abbreviation for "Prometheus" one of the titans in Greek mythology.