Lin Mo and Shen Nian were childhood sweethearts who grew up together. They encouraged each other to enter college together. After entering school, Su Wan, a girl from a wealthy family, pursued Lin Mo, causing various misunderstandings, which caused Lin Mo and Shen Nian to completely break up. Seven years later, Shen Nian discovered Lin Mo's diary while sorting out Lin Mo's belongings, and learned about Lin Mo's silent dedication and the secret of his illness...
