Yang Yilei and Su Nanchu met in high school.
The first thing he said to her was: "Classmate Yang Yilei, you are a bit stupid."
Later, after they had been together for a long time, he said to her: "I just like that you are stupid."
Their bad relationship started with that inexplicable look at each other on the first day of high school.
Many years later, Yang Yilei always wondered whether the two would have had so many interactions if it hadn't been for that inexplicable look at each other on the first day of school.