As long as the countries of the southern region are not eradicated, new Human Demons will continuously be born here.
How could Daxia possibly have the energy to come and pacify the place time and time again?
It would be much better to simply occupy it, govern it using Daxia's system, and transform the territory into a Daxia province, wiping out all criminal syndicates to prevent the continued birth of Human Demons.
Chapter 159