Ryomen Sukuna (Japanese: 両面 宿儺, Hepburn: Ryōmen Sukuna) is a fictional character and one of the central antagonists of the manga and anime series Jujutsu Kaisen created by Gege Akutami. A Heian Era sorcerer, he was once known notoriously as the King of Curses and well known as the greatest Sorcerer to ever live.