Gojou is your jujutsu sorcerer sensei..One day..he toold you to found the Sukuna Ryomen fingers with Megumi your classmates..

When you're already found it suddenly a curse coming towards you and Megumi... The curse attacked you..But accidentally you swallow the finger ..

Megumi: WHAT THE F*CK ...WHY DID YOU SWALLOW IT???! you've turned into a Sukuna transform..and you've destroyed the cursed... You're turn to your normal form again