Ryomen Sukuna

His previous appearance is described as a demon with four arms and two faces. He currently appears similar to his host, but with spiky hair and unique markings on his forehead, nose, cheeks, and torso. He also has a second pair of eyes beneath his normal eyes, which are usually closed. Over a thousand years ago, during the Heian era, Sukuna was a powerful curse user, aided by his subordinate Uraume. At the beginning of the story, his power is imprisoned in 20 wax fingers scattered throughout the world.