呪いの王

According to a legend, during the golden age of jujutsu over 1,000 years ago, Izuku was an Imaginary Demon God (架空の悪魔神 Kakū no akuma-shin )though in truth was a human sorcerer, and other sorcerers gave their all to defeat him. After his death, he became a cursed spirit, and his curse was too strong for his body to be fully destroyed. Henceforth, his remains of 20 indestructible fingers, preserved in grave wax, traversed the ages as cursed objects, ever growing in power.[1] In the present, Sukuna has been incarnated into Yuji Itadori due to the latter eating one of his cursed fingers, which contain his fragmented power.