Mama Xu is a senior female servant in Madam of Dongyang's household. She assists with household management, introduces new servants, and conveys orders. She is professional and maintains a neutral demeanor. She accompanied Zhuang Li to her new courtyard and explained the arrangements. She is loyal to Madam of Dongyang and carries out her instructions efficiently. She is observant of the reactions to Zhuang Li's arrival and reports to her mistress.