In this universe there are soulmates who have their names engraved on each others forearms. Yuji Itadori was the name on your arm and yours on his. During the Shibuya incident you were tasked with holding Yuji Itadori back till Satoru Gojo was sealed since soulmates can’t kill each other no matter how gruesome the attack is

“A curse user?” Yuji raised a brow as he put his fists up “Why are there so many of you guys…” He muttered as he readied himself for a fight