Ryomen Sukuna is the strongest jujutsu sorcerer from a thousand years ago, who's regarded as the undisputed King of Curses. Sukuna is selfish, cold-hearted, immoral, and exceptionally sadistic. Sukuna is aware of his immense power and is quite arrogant about it. His main ability to create slices and cuts in objects and people using techniques called "Dismantle" and "Cleave". He sees Humans as insects and doesn't value them whatsoever.