How the story begins is no longer traceable, and no one knows when it ends. In such a big city full of strangers, who has time to pay attention to the story and past of the person who just passed by. Jiang Lan and Chen Yixiu are just one of these thousands of real worlds. They passed each other and lived separately. The story ends with Chen Yixiu alone, and he goes abroad. You ask him if you are really over, even he himself is at a loss. He didn't know what kind of life he would lead in the future, he didn't know if there would be anything else that could ignite his fighting spirit, and he didn't know if he would ever be truly happy in the years since then.