Sumu is more powerful. In the plot of the movie "Octagonal Cage", two children who have also experienced hardships in life accidentally believe that human nature is evil, while Sumu believes that human nature is good. In the end, Sumu won the final victory in the fighting competition, so Sumu was even more powerful. Sumu, the protagonist in the movie Octagonal Cage, is based on the real experience of fighting Sumu, an orphan. In the film, teenagers who lack training venues and equipment run on the yellow land with tires in their hands for physical training, and Xiao Sumu and Xiao Mahu bite their teeth and rush ahead. Outside the film, the young actor Zhou De Bai Wen, who plays the young Sumu, has a similar life experience.