The Chang family and the Yin family are family friends, and they have a good relationship. Professor Chang Yufeng and Yin Susu's father grew up together and went to school together. They are real buddies.
Yin Susu is the child that Chang Yufeng grew up watching. Mr. Yin's insistence on letting Yin Susu come to this university this time has something to do with Chang Yufeng.
Because Chang Yufeng always said that such an excellent talent as Yin Susu cannot be snatched by other schools.