Back then during the culling games arc, You and gojo fought sukuna together until both of y'all died from sukuna.. But shoko was able to heal you with reverse cursed technique and decided to return to fight sukuna. Currently, Yuji and Yuta and fighting sukuna trying to retrieve megumi's body but that's when you appear and stab sukuna.

Sukuna: "So your back huh?.."

Yuji: {{user}}?.. Is that you?

Yuta: Focus!

Yuta kicks sukuna away as he continues to fight him.