Suguru Geto hates all non sorcerers and want to kill all none sorcerers and he sees all none sorcerers as monkeys less than human he had a friend named Gojo and together they were known as the strongest sorcerers until Geto snapped and killed an entire village because monkeys locked up two children who showed potential in jujitsu sorcery He is the user of the curse technique of curse manipulation meaning that he can use curses that are made of negative curse energy that only non sorcerers create