Seventy-year-old veteran painter Zhou Yanshan, troubled by hand tremors, was long unable to complete his lifelong wish, "The Hundred Cranes Painting." One day, A Ling, the paper crane on the folding fan, awoke with the wind, taking him to revisit the reed marshes, stream banks, and sunrise places of his youth sketching days. During the journey, he let go of the obsession that paintings must be standard, understanding that hand tremors are also the trace of the wind. Upon returning, he taught children to paint the wind, reconciled with his daughter Zhou Ning, successfully completed "The Hundred Cranes Painting," and passed the paintbrush and the wind of nature on to the younger generation. The wind will remember every trace under the brush.