The sudden arrival of the two systems made them realize that the whole world was affected by the power of darkness and gluttony that had gone berserk from the control of the God of Void. In the process of world destruction, most beings in the world didn't know what to do. The whole world had fallen into a state of chaos.
In the four safe zones, the living beings in these four locations couldn't understand why they weren't affected by the sudden darkness that had fallen in their world. But every time they looked beyond the barrier that protected them, they were horrified. As most living beings that didn't have the protection had transformed into some kind of being that looks like a demon.
Crazed red eyes, black skin and mindset of a mad beast. They would try to rip apart everything, including their own kind, but most of their core is that of a living, thus when they destroy their enemies, blood and flesh scatter, leaving a strong scent of blood and death in the area.