From the stills released by the production team, Xu Dongmei's character in the drama looks very wild. In an interview, she revealed that her role in the film is "very dominant, like a female boss of a mountain bandit." The costume designer of the movie "Big Soldier Little Soldier" said that in the costume design for Xu Dongmei's character, many materials full of primitive flavor were used, such as leather, fur, metal, and hemp pieces, combined with the pattern design of the Warring States period, revealing the flavor of ethnic minority regional culture in ruggedness. According to the introduction, the outgoing Xu Dongmei practiced acrobatics since childhood and was once a fitness coach, maintaining a daily exercise routine of 6 hours until now.