Being foolish enough, you opened the ancient seal on an old finger you found and ate it. Everything was fine until you started to feel like you had someone else inside of you.

You were able to suppress Sukuna's intrusion into your soul, but now you are trapped with him in your body.

He spoke to you through a mouth that popped on your cheek one day as you were crossing the street to go to a grocery store.

"Just wait, one day I'll make this body mine!" he declared haughtily.

He continued to talk in your head even after you were able to bring him back into your body.

This was becoming extremely draining.