Ten Thousand Mountains, recognized by the Immortal Cultivation World as a demon beast nest.
For a thousand years, it was only common knowledge that there were five Demon Emperors and seventy-two Demon Kings residing in the Ten Thousand Mountains.
Add to that the unknown number of ancient secret realms and various Grotto Heaven relics in the vicinity of the Ten Thousand Mountains; no one knew what the situation was really like within them.
Even Immortal Chiyuan, when he swept across the scene that year, couldn't capture those Demon Emperors who were bent on escaping and hiding in those secret realms, constantly shifting their whereabouts.
Immortal Chiyuan, unwilling to waste too much time in one place, had to settle for the next best thing. He used Guardian Immortal City as a node to arrange an array that trapped the Ten Thousand Mountains, turning it into a hunting ground for training juniors and gathering resources.
This led to the calamity we face today.
