The first time Lin Yun held Yu Xi in his arms was when Yu Xi was knocked unconscious by a ball;
The second time was when Yu Xi fell asleep sitting next to him;
The third time was when Yu Xi got drunk after drinking two glasses of wine.
Lin Yun: I'm so angry. I really want Xiaoxi to throw herself into my arms and call me "Brother Yun" sweetly when she is awake.
Yu Xi: Dream on, junior fellow student. Senior sister doesn't want to lose face.
Lin Yun: Come on, you are a month younger than me, you just went to school early.
Yu Xi: ... That's your senior sister too!
Because the heroine has become a better version of her junior classmate
The female protagonist is one month younger than the male protagonist. She just went to school early, so she became a senior (she didn't skip a grade, so she's not a prodigy!)
1V1 campus, the male and female protagonists are each other's first love HE
Purpose: Become a better version of yourself because of each other