Yun Mu struggled to restrain himself from making a move, for he saw Wu Wei at the window of the villa inside the courtyard, his expression tense as he looked down below, particularly when he saw Yun Mu and Wu Rou surrounded by the crowd, worry filled Wu Wei's expression.
Even though Wu Wei possessed the strength of the Nascent Spirit Stage, Yun Mu still treated him as an ordinary old man. He did not want Wu Wei to witness a direct confrontation with others, which might pose a threat to Wu Rou.
Moreover, Wu Wei himself was a master of the Nascent Spirit Stage, and if he chose to deal with these people, it would be a matter of seconds. He must have not wanted Wu Rou to know of his true strength, fearing it would scare her.