在婚礼即将开始的紧急时刻，新娘却突然消失不见，伴娘带着新娘的日记找到了她曾经的好朋友，对他进行了一段兴师问罪。当他打开了每一本日记，日记上的每一页都写着“今年我不再喜欢你了”这句话。这句话也使他彻底恍然大悟，原来15年间，这个女孩都深爱着自己，并且从未改变，他猜测会在结婚的这一天当落跑新娘,一定有她难过的苦衷，而在寻找新娘的路上，男人也逐渐回忆起自己与她的过往，在高中时代，两人是一对欢喜冤家，曾经在进入大学前彼此射血为盟，在毕业之后又进行了短暂的甜蜜相处，曾经美好的回忆，正如潮水中向他迎面扑来，两个人之间进行了几段分分合合的经历，也让他对这段感情越来越虐心，依依不舍。经过了一番周折，他才明白，女主之所以会改嫁，是因为身患重病不想拖累自己，当他想到这个原因，他立马赶到曾经两个人一起待过的湿地，可惜晚到一步，他与新娘擦肩而过，新娘留下了一副素描。只有男人才愿意相信，候鸟有归期，他一直在等待着女人的归来

At the critical moment when the wedding is about to begin, the bride suddenly disappears. The bridesmaid finds her former good friend with the bride's diary, and conducts an investigation on him. There was a period of inquiring about the crime. When he opened every diary, every page on the diary had the words "I don't like you anymore this year". This sentence also made him suddenly realize that this girl has loved him deeply for 15 years and has never changed. He guessed that she would be a runaway bride on the day of marriage. On the way, the man also gradually recalled his past with her. In high school, the two were a pair of happy friends. They used to shoot blood with each other before entering university, and had a short sweet relationship after graduation. They used to be beautiful Memories, just like the tide rushing towards him, the two people had a few experiences of separation and reunion, which also made him more and more cruel and reluctant to part with this relationship. After some twists and turns, he realized that the reason why the heroine remarried was because she was seriously ill and didn't want to drag him down. When he thought of this reason, he immediately rushed to the wetland where the two had stayed together, but it was a pity that he was one step late. He passed by the bride, who left a sketch. Only a man is willing to believe that migratory birds have a return date, and he has been waiting for a woman's return