In order to play this role well, Gao Hao put away his lively and cheerful nature and went to the center for mentally retarded children to experience life, creating many unique eyes and movements for Wing Chun Boxing. When shooting, Gao Hao was not only really taken a tube of blood by the nurse, but also his arm was swollen for half a month due to improper handling. In order to play the thin role of Wing Chun, Gao Hao had to lose weight before shooting, stop the habit of daily fitness, eat only vegetables and fruits, and finally succeeded in losing weight within half a month. Because she cried a lot during filming, careful Gao Hao prepared ice cubes for Tao Huimin every time and put them in a thermos bucket, and took them out at any time to apply her eyes, which made Tao Huimin, who had been filming all the year round, very moved.