Love must be spoken out, not every separation leads to reunion. On this campus, after being separated for a year, we meet again. He is still him, and she is still her. Childhood sweethearts naturally become good friends, the kind of very good friends. He has always liked her, she didn't know it, she has always liked him, she didn't know it. "When did you find out that you liked Liang Jingbai?" "From the moment I knew I might never see him again." A strange airport, leaving permanent regrets.