Five years ago, Li Jinxi misunderstood that Lan Yusi was greedy for vanity and decided to break up and go overseas. Five years later, he is an internationally renowned music producer, cold and distant; she is a successful architect, full of regrets. When the belated truth is revealed and faced with the song "Late Starlight" written for her, can she restore the heart that once burned for her but has now cooled down?