Jujutsu Kaisen Reveals a Deeper Connection Between Yuji and Sukuna
The main character not only serves as a vessel for the ancient sorcerer Sukuna but also shares a significant bond with him. However, it wasn’t until Chapter 257 of Jujutsu Kaisen that we received a definitive confirmation of this relationship.
This chapter reveals that Sukuna had “devoured” his twin brother while still in the womb. The spirit of the deceased fetus was later reincarnated as Jin Itadori, Yuji’s father. This implies that Sukuna is, in a way, Yuji’s ‘father’ as well.

However, this revelation does not add any emotional weight to their ongoing battle. Sukuna seems to be acknowledging the havoc he has caused since his emergence from Yuji, leaving a trail of destruction and death in his wake.
Nevertheless, if one thinks deeply, the fans of Jujutsu Kaisen will realize that Yuji is not only fighting against his own alter ego during this time but also contending with his father.
Although it hasn’t been explicitly stated, the connection between Sukuna and Yuji could be the result of the chaos caused by him devouring his own brother. After Sukuna’s emergence, his essence may have fused with that of his twin brother. This means that the very essence of Yuji’s father has brought Yuji much pain and suffering.

This is a poignant detail that transforms the final battle in the Shinjuku Showdown arc into a deep emotional challenge. The fans of Jujutsu Kaisen are also captivated by this line of reasoning. As one person articulated: “Identical twins share DNA, so biologically, Yuji is the son of Sukuna.”
“It runs deeper than that. The twins in JJK are considered to share the same soul. Spiritually, Sukuna could be viewed as Yuji’s father. The tragic aspect is that Itadori has been continuously attacked by the very essence that should protect him.” , another individual added.
Some have remarked: “The saddest part is that Jin is perceived as a very important figure in Itadori’s life, while Yuji has been yearning for his father’s presence for quite some time, only to realize that he is the one who has caused his suffering.”
While the narrative may suggest the intense struggle between Yuji and Sukuna, Yuji remains unaware of the actual nature of their relationship, or even that Sukuna could be considered his biological father. However, as Jujutsu Kaisen has three more chapters to go before concluding, it is likely that Yuji will discover the painful truth by the end.