The collapse of ancient magic civilization was undoubtedly due to Yarakulon, the Abyss King.
The demonic creatures that hunted humans to extinction were all armies under its command.
The King of Fire Dragons, the Swamp Beast King, and the Giant King, these three Kings of Demons, were also its servants. One burning the earth with the dragon's breath of flames, another polluting the lands with deadly toxins, and the third consumed everything including life itself with an insatiable appetite, greatly damaging the entire continent.
Yet the true reason the Akasha continent became a barren land where life couldn't thrive eleven thousand years ago was still due to Yarakulon's own power.
"That darkness is akin to the Abyssal Touch encountered at the source earlier, capable of dragging everything it touches into the depths of that darkness."
"There, a world resembling the abyss is connected, and once drawn in, whether living or non-living, all will face annihilation."
