It was enough for him to attack the Five Elements World and Dream Weaving World and kill their kings.
Even if Han Fei wanted to continue to do this, no one was a fool. With the example of the Five Elements World and the Dream Weaving World, who dared to recklessly take sides with Supreme Clearness and Infinity? Who wouldn't quickly transfer all kinds of resources away and put all the main combat power at home?
At least, Han Fei had no chance to rob the Heavenly Palaces in the inner domain anymore. And Han Fei also realized that he might have underestimated the power of the masters of the Heavenly Palaces in the inner domain.
The Heavenly Palaces were divided into those in the inner domain and in the outer domain because each world's opportunities were different and their cultivation potential was different. Those in the outer sea clearly didn't obtain enough opportunities or had weaker Great Daos.