Xu Zhaoqing's hatred of homosexuality in high school made him choose to ignore it. Even if he later realized that silence was a way to hurt others.
When Xu Zhaoqing saw Lan Shiyan again, he thought it was just an interlude, but found that the lives they had unknowingly intertwined with each other made Xu Zhaoqing use his own life to seriously understand Lan Shiyan's life. Only then did he realize that love is never absolutely impossible.