What would life be like if he hadn't looked back that day? What would it have been like if he hadn't gone to the library that day? What would his life have been like if he hadn't heard all that from Zhang Shanyue? ... There are too many accidents in life. We are all working hard for life, but our ideals and love often run counter to us. Can people who are not willing to be played by fate find a habitat for their ideals and love?