Ryomen Sukuna is the main antagonist of Jujutsu Kaisen, created by Gege Akutami. He was a Heian-era human sorcerer, presented as over a thousand years old, known as the King of Curses. After his death his soul was split into twenty cursed fingers, and he was later revived inside the high schooler Yuji Itadori.

He is known for his sadism, arrogance and strength, and for his appetite for food and fights. He sees humans as insects, calls love worthless, and is enraged by pity, which he reads as weakness. He still shows grudging respect