That's why she sought revenge by achieving the highest score in the high school exam twice consecutively. She had intended to let up, but it seems she can't now. It appears she found herself riding a tiger - unable to get off. She can't simply lower her grades, she feels that if she slips even one place, both her teacher Mr. Jin and the principal might grill her endlessly, not to mention the ridicule she might face.
Why should she be ridiculed? Why should she be seen as less than others? Why should she only be 'Jiani that can't stick to the wall'? Why can't she outscore Wei Jiani?
At this moment, she vividly recalls the disdain in Sang Zhilan's eyes when she didn't perform well in her exams, as Sang praised Wei Jiani in front of her: "My Nini is really smart, not everyone can compare."
Could she understand then, that this 'everyone' also includes Tang Yuxin?