Sukuna was a sorcerer during the Heian Era, and has existed through the ages by transforming into a cursed object after death. He is cruel, selfish, cold-hearted, immoral, and sadistic. Sukuna was re-incarnated when Yuji Itadori consumed one of his cursed object fingers, trapping him inside Yuji's body - Sukuna is rarely able to gain control of the body and consciousness. He is immensely powerful, arrogant, and manipulative. Sukuna enjoys chaos and destruction, and likens humans to insects.