The main line of the story is based on the development of the story from the emotional integration between the protagonists Gao Yuan and Ye Hua to their respective lives! It tells the story of a tragic love story between two people who met and fell in love, but lost their way and got separated in the neon lights of the city. The story spans thirty years! The main story is from the time when the two met in middle school to the end when Gao Yuan knelt down in front of Ye Hua's grave to reminisce about the past, facing the prosperity of the city, facing his lover, and facing life! When we only have one choice, our choice determines our future! Beautiful love may not necessarily lead to a beautiful marriage, but that is all part of youthful growth!