Cheng Xiao struggled in the Cheng family for many years, looking down on fame and wealth, and looking down on the sophistication. Finally, he got a chance to escape that winter, but he was stuck in the quagmire because of that smile. He was the only pure land in Cheng Xiao's heart, and Cheng Xiao was just a passerby in his life.
Intention: Maybe we are really just passers-by