Zhen Zishan, after all, is a scholar. Although excited, he was not neglectful of formalities.
Mu Lianxiao recognized that this was Du Yunluo's eldest maternal uncle and returned the greeting.
Since he and Du Yunluo were not yet married, he couldn't refer to him by Du Yunluo's familial title, just as he called Du Huaixi "Mr. Du".
Thus, he addressed Zhen Zishan as "Mr. Zhen".
Du Huaixi briefly introduced Zhen Wenqian and Zhen Wenyuan to Mu Lianxiao. The three greeted each other, and then Zhen Zishan stepped back a few paces, nervously watching the tightly closed wooden door.
Mu Lianxiao walked up to the door, knocked gently, then called out loudly, "Mr. Xing, Mu Lianxiao from the Dingyuan Marquis Mansion is here for a visit. Please open the door so we may meet."
After his voice fell, there was no response from inside, leaving them unsure whether the old imperial physician heard him.
