Just like his younger brother, Shen is extremely sadistic and unforgiving in nature, having no moral qualms about murdering anyone who stands in his way, even his own former students. Also like his brother, Shen is extremely confident in his abilities and does not believe himself to be flawed in any manner. He also attempts to boast his superiority any chance he can; especially toward Roshi, claiming his students are far superior to Roshi's, simply because he taught them.