The head tutor of the girls' class. According to Sohu Entertainment Network, Mao Yulin is the chief instructor of the charming female class of the institute. Mao Yulin is also a lecturer in "Elegant Women's Body Appearance" and "Elegant Women's Manners and Etiquette", a national senior elegant decorator, a national senior etiquette trainer, a senior posture trainer of CAEA, the Central City Association of the Ministry of Education, and a senior posture consultant of ACI International Certification Association of the United States.