Gu Weizhi and Chen Shian were childhood friends and mortal enemies. Gu Weizhi knew that his feelings for Chen Shi'an soured when he was in high school. Chen Shi'an was an idiot, thinking that he was provoking himself, and was unconvinced by Gu Wei.
It wasn't until he graduated from high school that Chen Shi'an felt that he was already upset with Gu Weizhi without even meeting him.
I mustered up the courage to click on the interface I hadn't chatted with in many years.
Chen Shi'an "Here?"
Gu Weizhi "Open the door, I'm at the door"
Intention: Love, let me truly understand you