In the summer of their sophomore year in high school, Zuo Yin and Wen Xiaohe made a promise to stay together for the rest of their lives by the classroom window. In order to let his brother take the right path, Sun Se cursed Wen Xiaohe. After the college entrance examination, the three people were admitted to different universities and started their own lives. The pressure from the surroundings and the rebuke from his parents made Zuo Yin give up Wen Xiaohe and embark on the "right path." Sun Se also found that Wen Xiaohe was always in his heart. The story is very depressing, welcome to read it