Ten years have passed and the world that was once a battlefield between humans against humans turned into a world were monster roam. Battles between humans were still happening but to a lesser degree as it was now a battle for survival for humanity against the monsters that came after the change.
With their newfound abilities and the materials they gained in this new world, the humans were able to create powerful weapons that could enhance their abilities, with these new weapons the humans were barely holding onto their spot as the ones on the top of the food chain.
For the sake of survival in such a dangerous new world, the remaining humans banded together to create the last fortress of humanity which they called, the Unified Human alliance.