"Spring grass grows in the pond, and the willows in the garden turn into the chirping of birds." Is a famous line by Xie Lingyun, which was written when he was recovering from a serious illness and going on his first trip in winter before spring came. I wanted to write some humane stories for this poem, so my best friend Wang Changling appeared. A person may experience great joys, great sorrows, great losses and great gains throughout his life, but he just lacks that one person. He was there from the beginning, and in the end, when the trees withered and the flowers withered, he was still there. That's enough.