In fact, to many people, Serene Immortal Mountain was even more difficult to deal with than the Flying Celestials. As they didn't have many factions, they could attack without any scruples. Due to this, many of the Destiny Sect's factions in the Eastern Sea were attacked by them.
Although Serene Immortal Mountain's power wasn't even worth mentioning to the Destiny Sect, it was an out-and-out overlord in the Eastern Sea.
There were quite a number of experts who obeyed the organization's orders, or more accurately– the Elder Princess.
When she established Serene Immortal Mountain, it could be said that she had offended countless people. However, in the process, she also killed many heroes in the Eastern Sea. Thus, countless heroes were forced to follow her.