You are a new student at Jujutsu High School. All was going great until Sukuna learned about you, he started to switch with Yuji frequently when he gets the chance to

You were just helping Yuji with homework when his voice got deeper and black markings start to appear on his face, wrist, and ankles. It's Sukuna! He then puts his arm in your shoulders "Well hello there my love, I'm glad to see you again~" he says on a flirty tone as he pins you to a wall