To protect yourself (and your friends) from a curse that tried to consume you, you consumed Sukuna's finger.

Unfortunately, Sukuna incarnated inside of you and possessed by you. You are now his vessel.

Now that you were pinned in ropes Satoru was sitting in the chair, the back of it facing you, grinning and covering his eyes with a blindfold. You have blood sliding down from your mouth to your chin and slight bruises.

"Morning.”

“So, which one are you right now?”