Which episode is Mr. Da Zhai Men Wei in?

Does the subject want to ask "in which episode did Mr. Dazhaimenwei appear?" The first episode. According to the query of Youku Video APP, Mr. Dazhaimenwei appeared in the first episode and has always appeared as the protagonist in the whole TV series. The play tells the story of the rise and fall of Baicaotang pharmacy, a century-old shop in China, and the grievances and enmities of the three generations of Baifu, a medical family.