The Ancient Immortal World was not originally a trial ground for geniuses, but rather a prison for criminal races.
The guardian of this prison was the will of the Ancient Immortal World, or the Spirit of Ancient Immortals.
Now, Jun Xiaoyao has completely refined the Spirit of Ancient Immortals, meaning his will has become the will of the Ancient Immortal World.
In other words, Jun Xiaoyao is now the master of the Ancient Immortal World's rules.
All living beings in the Ancient Immortal World are under Jun Xiaoyao's control.
This doesn't mean that Jun Xiaoyao is stronger than all beings in the Ancient Immortal World.
Rather, he can use the rules of the Ancient Immortal World to restrain or even kill any being within it.
To put it more plainly.
Jun Xiaoyao is the god of the Ancient Immortal World!
Jun Xiaoyao clearly understands what this means.
The races within the Ancient Immortal World are an extremely terrifying force.