Cheng Nanzhi came back because of his parents' work.
The first time they met was in the corridor of the dormitory, he opened the door for him.
I thought they could make it to the end, but Nan Zhi, Bei Shi. North and South are inherently antagonistic.
Love is in the east, you are in the west. Love is in the south, you are in the north.
Mission: Be determined and never give up, be focused and progressive, be honest and friendly.