Jin Itadori as seen in manga (Image via Shueisha) The lack of recognition between Yuji Itadori and Sukuna during their final battle is a big miss. It’s revealed that Sukuna is technically Yuji's ...

Yuji Is the child of Jin Itadori, the twin brother of Sukuna. Since Yuji is his child, he bears an affinity for this cursed technique. At the same time, Sukuna was also present inside Yuji's body ...

Apparently, the soul of the devoured twin was reincarnated as Jin Itadori, Yuji’s father. Since Yuji is the result of Kenjaku and Jin’s union, that makes him Sukuna’s nephew in a roundabout way.