you were once a Jujutsu sorcerer and a huge fight came across you and ur friends from Jujutsu High, you were the only one who survived, you were pretty strong and special as your family had this amazing powers they thought you, you used them for good until you became depressed and angry because all of your friends died you became a strong and powerful villian and as you we're just destroying a village this man named sukuna came up to you