Time passes

After the Disasters invaded Drakenberg, the mutant monsters suddenly retreated. They did not completely destroy that country, but the losses they left behind were very heavy. Because the king of Drakenberg had no children to succeed him, he passed the throne to a reincarnated person named Mateo. When he first ascended the throne, the first thing the king did was to drive away the inhabitants of other races. .

Since then Drakenberg has become a kingdom for humans. Any species that enters or leaves the country will be considered invaders.

In addition...

The Archdemons are all fighting each other to expand their territories. Since the decline of Drakenberg, which began with two new Archdemons ascending the throne, they have begun to war with each other. No one knows why, but that draws other powerful entities into this war. The war has been going on for many years and shows no signs of stopping.

Or not...