After being transformed by the resuscitation pool, the cultivators could move freely without any supervision.
Some cultivators tried to leave, but they soon returned in despair.
Once they tried to enter the chaos sea, they would feel a terrible tearing sensation, as if their entire body was going to be crippled.
Without a doubt, such an abnormal situation was the effect of the resurrection pool's transformation.
It was no wonder that the enemy was at ease and allowed the cultivators to move freely. It was because they could not leave at all.
The result of leaving by force was the destruction of one's soul. No cultivator could escape that.
As for the modified cultivators who were heading to the seventh continent to participate in the invasion, they probably had special means.