I Opened a Kindergarten in Ancient Times

An accident gave Lin Xiaoyun a system, which also took her to another planet, where the environment was similar to that of ancient times. The task of the system is to ask her to open a kindergarten here, but the plot is so bloody at the beginning. How can she open a kindergarten? Enrollment, teaching, rich sons, nobles, and nobles, let's see how she solves them one by one, from the daughter who returned home after leaving the family, to the kindergarten principal who no one dares to mess with in the capital.