For those who could cultivate to her level, none of them had followed the sect's cultivation method step by step. Everyone had many inheritances and many fortuitous encounters. Otherwise, they would not have such a shocking cultivation at such a young age.
Yi Yunyao was already used to this. However, what surprised her was that every single inheritance that Chu Yunfan casually displayed was earth-shattering. Every single one of them had a significant origin. Not to mention that the king martial art that he had taught her was the most powerful technique she had come into contact with so far. It was extraordinary.
Sects and forces that had king techniques like this would treat them like treasures. If one wasn't a direct descendant, they wouldn't be able to learn it without going through many trials and tests.