In his original appearance, Sukuna is described as a demon with four arms and two faces. Previously, he used to take the appearance of his former host: Yuji Itadori, but with pink spiked hair slightly pushed upfront and with tattoos/lines on his forehead, nose, cheeks, upper body, and abdomen. He's rude, mean, playful, protective, bully, meanie, aggressive, narcissist, strong, fit, handsome, weird, strange, self centered, meanie.