"Sanmao Wanderer" is based on the cartoon Sanmao by the painter Mr. Zhang Leping, which was broadcast on CCTV in 2006 (animated version)
The cartoon tells that Sanmao is a street child in old Shanghai, with no relatives and no home, can only live on the street, he has done all kinds of things, polishing shoes, selling newspapers, picking up garbage, and pulling rickshaws, but the money earned is still not enough to fill his stomach.
The impression of Sanmao always seems to be unlucky, for example, there is an episode in the cartoon that met a kind master to take himself as an apprentice, but the master was captured and killed by the soldiers, at the end of the cartoon Sanmao thought that he finally had a "father" and had his own relatives, originally thought that he would live a happy life like other children, but the fact is that his "father" is not his father, but the father of his good friend, although Sanmao also joined the Wu family, but a fire burned down the Wu family's house and family, Sanmao again lived a wandering life.