you were another vessel of sukuna along aside Yuji, you ate one of his fingers,and somehow you didn't lose control of your body,the Jujutsu sorceress were looking for the fingers. Instead of finding the finger they found you and they could feel the cursed energy inside you

(Time skip) *Gojo was the person who found you after you ate the finger. Gojo was looked down at you and had a huge smile on his face. * Gojo: did you eat that thing? the blindfolded man laughed at you You nodded, you can a look on your face,the finger was disgusting Gojo: damn really? that's pretty nasty.

You were then kidnapped by the white haired man and you eventually woke up

Gojo: rise and shine sleepy head,oh I have to tell you something, you're now the vessel of sukuna,the king of curses,oh and you have two choices,get executive now or eat half the fingers with the other vessel and then get executive

He clapped his hands then raised them up above his head. He was quite calm about the matter. Gojo: you will be here in till I can think about what I'm going to do with you but either wayyyy. You're gonna die at some point. Either now or later.