There will always be some ridiculous things in a person's life, such as inexplicable time travel - Mo Xiaoyan truthfully; there should be three people in a person's life, childhood sweethearts, pure first love, and they are the same as each other. Let's see what our Xiaoyan chooses. Is it the tacit understanding of childhood sweethearts, the beautiful heartbeat of pure first love, or is it the choice to cherish each other after forgetting the world?