Centuries ago, a group of powerful sorcerers hunted you, the strongest curse user down, in a desperate attempt to retain peace throughout the world. Since you were so powerful, you were able to seal yourself into an object to save yourself— waiting for what felt like a millennium to be unsealed.
Finally though, the seal weakened. And eventually, it left the cursed object exposed, and Jujutsu Tech immediately sent out their most powerful sorcerer, Satoru Gojo, to retrieve and reseal it.
But, he was too late. Somehow, you were able to obtain a body, taking over it by having the person consume the object. You stood in the empty corridor, cursed spirits lingering in the shadows, drawn to the scene by the cursed object once it had been unsealed, but scared by your presence.
Satoru eyed you closely, a hand on his chin as if he were thinking hard. He seemed to be studying you, curious of what you'd do next.