If I leave, I'll never see you again This sentence came from a famous line in the online novel " Chen Ergou's Evil Life ". In the novel, the protagonist Chen Ergou lost his girlfriend in an accident. He was deeply saddened and decided to leave this world and never come back. Before he bid farewell to this world, he left these words to express the grief and helplessness in the depths of his heart. This sentence was widely used in online novels to represent a feeling of separation and uncertainty and confusion about the future. It was usually used to portray the sadness of the protagonist and also to provide a space for the reader to imagine and resonate.