If one were to say who would be affected the most with Qiao Yue's return to the Qiao family, it would be the third family.
Although the Qiao family didn't favor sons over daughters, the third family was always inadequate compared to the other two families because Old Master Qiao didn't like them.
As of now, the first family's Qiao Xuan and Qiao Jing, and the second family's Qiao Ze, all had their own careers. How the old man's assets were divided didn't matter much to them. But the third family only had two daughters who were both still in school. How much assets or stocks they would inherit in future was of great importance to the third family.
The third madam's frown was deep. The other two families wouldn't care much if Qiao Jing brought Qiao Yue to meet the old master, so she must think of a way to make the other two families see Qiao Yue as an enemy like she did.