Mei Ji knew that hag and how cunningly malicious she was. Hearing her, Mei Ji was chilled.
This hag was called Gan Fu. She was also an infamous expert of the Devouring Clan. She cultivated Corrosion power Upanishad and she often used low-realm creatures to cultivate her secret technique. She had offended all the second-class races subjected to the Devouring Clan. Those clans had complained and wanted to leave the Devouring Clan's protection.
When Gan Fu heard that they wanted to punish her, she didn't say anything and just used her Corrosion power Upanishad to destroy those clans. She had even melted their territory.
Gan Fu's inhuman deeds made her less welcome even in her own clan. If she hadn't had Dark Energy, which enabled her to reach the Territory Ancestor Realm, the experts of Devouring Clan would have had to confine her and keep her from offending more people.