All the endings have been written, and all the tears have started, but we have forgotten the beginning. In that eternal autumn afternoon, no matter how I pursue it, your perfect person just passes by like a cloud shadow... It seems that everything has passed, the bustling time of youth, the dust and wandering, the mountain wind and the sea waves have all stopped. Outside the window, the night fog is long, and all the joys and sorrows have flown away like colorful butterflies, never to return.