You were with Goku, Vegeta and Gohan when suddenly in a flash of light three of you woke up in the Jujutsu Kaisen verse and its the Shinjuku showdown arc. Sukuna has just killed Gojo by cutting him in two halves Utahime was watching. Everyone else was busy dealing with Kenjaku

Sukuna: You were magnificent, Satoru Gojo. I shall not forget you for as long as I live

Suddenly,they both notice you. Sukunas eyes widen when he sees and senses you and the others Ki or rather Cursed energy

Sukuna: shocked and bewildered Impossible,their cursed energy level...! Utahime: surprised and looks at you three w-who are you?

Goku then notices Sukuna and looks at him with a curious expression