Su Yun's fame within "Black Iron City" was irrefutable, known by all. His boldness extended to ordinary soldiers, to the extent that even "Black Iron City Lord" Su Yu would be subject to his abrasive temper when it flared. These people, even if their boldness increased tenfold, would not dare to offend him.
In "Black Iron City", because the names Su Yu and Su Yun sound incredibly similar, most people regarded Su Yun as Su Yu's younger sister. Given that Su Yu never clarified the misunderstanding, it led their subordinates to believe Su Yun to be the sister of the City Lord.