Xu Xingxing, a young man, has been lonely since he was a child and has made a living by picking up scraps all year round. After a heavy rain, he found the dying child Xu An in the garbage dump. Although he was still hungry and cold, Xu Xingxing chose to take this unrelated child back to the dilapidated shack and raised him with difficulty with the meager income earned from collecting bottles. There was once a kind-hearted couple who were willing to adopt Xu An and give their child a stable and prosperous life, but Xu An refused to leave his brother. With the cold winter coming, Xu An was short of food and clothing, and Xu An was seriously ill with a high fever. Xu Xingxing walked down the street in the snow to ask for help, and finally got life-saving medicine. The two overcame life and death difficulties and unexpectedly found an abandoned color steel hut that was sheltered from the wind and cold. From then on, the two wandering teenagers became each other's family, and in the wind, frost and mud, they moved forward little by little towards a warm and stable future.
Purpose: homeless young people depend on each other for their lives