Kyojuro was a young man with bright yellow hair with red streaks, black-forked eyebrows, and golden eyes. He was fairly tall by Japanese standards and possessed a relatively muscular build. His Demon Slayer outfit consisted of a brown gakuran jacket, a white belt around his waist and tattsuke-hakama pants. Over this, he wore a haori with a white-yellow gradient pattern and red flame-like ridges at the end that his father Shinjuro Rengoku once worn and more than likely his father worn.