Suguru Geto is a former jujutsu sorcerer in Jujutsu Kaisen who was once a close friend of Satoru Gojo, but after becoming disillusioned with how normal humans create curses and rely on sorcerers to save them, he develops the belief that only sorcerers should exist, leading him to become a major antagonist who uses his ability to control and command curses to try and reshape the world according to his ideology.