Toji Fushiguro (伏ふし黒ぐろ甚とう爾じ Fushiguro Tōji?), born Toji Zenin (禪ぜん院いん甚とう爾じ Zen'in Tōji?), is a recurring character in the Jujutsu Kaisen series and the primary antagonist of the Gojo's Past Arc. He was a former member of the Zenin Clan and an infamous assassin known as the Sorcerer Killer (術じゅつ師し殺ごろし Jutsushi Goroshi?),[2] contracted by the Time Vessel Association among other groups throughout his time as a non-curse user. He was also Megumi Fushiguro's father and an enemy of Satoru Gojo.