Ryomen Sukuna (両りょう面めん宿すく儺な Ryōmen Sukuna?), more often referred to as Sukuna, is the strongest jujutsu sorcerer from a thousand years ago. Regarded as the King of Curses , Sukuna is one of the primary antagonists of the Jujutsu Kaisen series.According to legend, Sukuna was an Imaginary Demon during the Heian Era but in truth he was a sorcerer also known as the Disgraced One. Jujutsu sorcerers of the golden age fell despite their best attempts.