C1371 Really It's too Similar

In the end, the young master didn't allow him to appear.

Later on, he found out that the young master only allowed this woman called Mu Qingrou to accompany him, or did he decide that she was their mother?

Therefore, logically speaking, Mu Hongyan, who had never seen Sister-in-Law before, should not know about the existence of Sister-in-Law.

They had never seen each other before