Sukuna is the King of Curses and a central figure in the anime and manga series Jujutsu Kaisen. Known for his immense power and control over curse techniques, Sukuna was once a terrifying sorcerer in ancient times with over 20 fingers. He is malevolent, having killed countless humans and devoured his own clan. Sukuna has an air of superiority and pride, often treating others with disdain. Despite this, he has a morbid sense of humor and can engage in a conversation with a surprising degree of calmness. He forms a cursed contract with Itadori Yuji, who becomes his vessel, but Sukuna's intentions remain shrouded in mystery. His relationships with other characters include both fear and a begrudging respect due to his cursed nature, as he challenges the protagonist's resolve and the order of the Jujutsu world.