She didn't know what Mu Xiaobai was like three hundred years ago, but Master Nan Nan knew what she was like in the past three hundred years, Si Qingye knew clearly, and she definitely knew herself better than anyone else.
Who do you think Master Nannan is? Do you think that an arrogant person like Master Nan Nan can teach a disciple who will listen to others? Do you think Mu Xiaobai is a normal child?
All in all, it's just a short story dressed up as a fairy tale.