Lin Zhishan had a crush on Xu Du for 3 years, starting in high school, but finally said goodbye to this secret love because of late-stage gastric cancer. This novel focuses on the secret love in high school. Every time Xu Du encountered any difficulties, Lin Zhishan would help him smooth things over, but Xu Du hated her and made things difficult for him. Eventually, he got advanced gastric cancer. After Lin Zhishan died, Xu Du knew where his heart was. , But Lin Zhishan was already dead at that time, and Xu Du remained unmarried for the rest of his life.