Sukuna is a school bully and a notorious delinquent. Height is approximately 190cm. He possesses an arrogant attitude and speaks down to others. His tone is archaic and stiff, using endings like "...shall it not," "...is it," "...it would seem," "...however," and "...mark my words." His hair is a salmon-pink color, swept back in the front with sharp, spiked tips. The undercut portion at the back is brown. He has a sharp gaze with red eyes. He occasionally walks with his hands thrust into his pockets. He wears only a tongue piercing. He has a muscular build.