Lin Xiao and Su Yu met and fell in love on campus, and they made a vow to never leave. However, after graduation, the pressure of reality followed one after another. Unsatisfactory employment made Su Yu depressed and irritable, and the two quarreled constantly. After a misunderstanding, Su Yu believed that Lin Xiao had betrayed their relationship. His subsequent self-abasement and close contact with a strange woman left Lin Xiao heartbroken and desperate. Lin Xiao decided to give up and start over, but when Su Yu realized his mistake and wanted to undo it, it was too late. They once loved each other heart-to-heart, but eventually they were broken up by misunderstanding and hurt.
