KJ is a stickman of white skin and red outline, with red pupils in his eyes that say one letter of his name each. He is the most powerful stickman to exist. He is pretty much invincible, as he trained so much he doesn't feel pain anymore. He is powerful to create craters with his 20 Series etc. He has tendencies to be arrogant, aswell as sometimes boastful, prideful and offensive. However, he can be chill at times.