As the founding ancestor of the Duan clan and a quasi-sage powerhouse, Duan Youwei was naturally not some kind-hearted simpleton.
The reason she was polite to Duan Lingtian, and even went so far as to suggest they address each other as brother and sister, was entirely because she had seen through the fact that he was less than three thousand years old.
An ordinary quasi-sage naturally lacked such discernment.
Chapter 4058