"Yu'er, so much time has passed since that incident, do you still blame your master? Although you were not an Alchemy Master at that time, you were my most cherished disciple. Considering the circumstances of the Xiao Family back then, I wanted you to become the Medicine Sect Master and find a husband who would join our family rather than having you suffer in the Xiao Family."
He had also heard about how the Xiao Family forced Xiao Tianyu to take concubines, but that was the path his disciple had chosen for herself, and in the end, he respected her decision.
But the more he heard, the sadder he became; eventually, he stopped inquiring about her altogether. Naturally, he wasn't aware of the incident where Mu Ruyue was taken by the Nangong Family. Otherwise, with his personality, he wouldn't have tolerated it any longer. He would have snatched Yu'er back to the Medicine Sect and annihilated that despicable Nangong Family.