Luocheng is very small, so small that only a little memory remains. We have been thinking about how to leave Luocheng and see what the world is like outside. Later we left, leaving Luocheng in our memories, but we began to miss Luocheng. ----The encounters between the two-faced girl Su Qingan and her friends who grew up together, friendship and betrayal, love and abandonment, many heartbreaking rejections, a little bit of determination with no way out, and a moment of growth. On the other side, a friend who grew up together in Qing'an met with an accident, and his life changed dramatically. Love and friendship, Qing'an slowly grows through the entanglements and choices... What changes will the friends' experiences bring to Qing'an? We agreed to grow together, why would you leave me behind?