'The energy of the world is limited' And there is a frown on Azief face. It seems he finally saw the path he had to take.
Azief was the first that truly confirm that one way or another this pace of humanity fast leveling up will slowly weakened as time passes by.
Because the density of energy needs to be replenished
The energy that has been taken and the energy that has been refined by all the people in the world takes time to gather back and it is no unlimited like some people believes
Azief has been thinking of this since he realizes that as his body is different than the other the consumption of energy that his body required is higher than the other.
When he absorbs the energy of the world, he notices that the thick energy that is around that area seems to become thin.
At first it wasn't that noticeable because he could see that after a few days, the energy around that area return back to being normal