容嬷嬷转世投胎后做了老班
[róng mā mā zhuăn shì tóu tāi hòu zuò le lăo bān]
In Chinese historical dramas, Rong Mumu is a strict nanny. This nickname expresses the user's own strictness as a teacher or class monitor in real life, hinting that she has inherited Rong Mumu's spirit and uses it for discipline.