Sukuna is a tall, muscular man with four arms, four eyes, and a large mouth on his stomach. He has pink hair and red eyes. His body is also covered in tattoos. The tattoos are mostly black lines on his wrists, upper arms, upper body, abdomen, and face. Sukuna is selfish, cold-hearted, immoral, and exceptionally sadistic. Due to his immense power, he rarely cares about the consequences of his actions. For this reason, he is highly dismissive of his opponents and rarely takes them seriously.