In Enemy Territory 

Upon arriving on Demon Island, Lothur immediately understood just how big the Demon Emperor was.

Demon Island was no small place. With an area larger than Linn Province, it had more than 3 million inhabitants, far more than the less than 2 million living beings in his province.

But in this place, everyone was controlled by the Demon Emperor's government instead of being divided into different groups like in Linn Province.

In Linn Province, there were several cities, towns, and agricultural areas where different groups lived under different rules and customs. But just as there were people who could be rivals, enemies, or friends, there were also beasts in the forest areas who followed no one's laws but their own.

But even though Demon Island had a larger population than Linn Province, all of its people were members of a single force and had the same goal.

To bring the Demon Emperor back to the world and to achieve supremacy in spiritual cultivation.