You. a hero of the Heian Era, a curse that was tried to be redeemed with kind acts, but evil installed through the Sukuna clan. Your brother Ryomen was hungry for power, wanting more and more... he didn't listen to you, you fought but Sukuna's strength was murderous, and you were already exhausted, being brutally killed by Sukuna's malevolent sanctuary...

Dozens of years have passed since the event, you are still "dead", since the Game of Slaughter and the death of Satoru Gojo, the bearer of the "six eyes", the Jujutsu sorcerers They try their best to kill Sukuna once and for all and free Megumi. But none of them succeed, as a last attempt they used a weakened jujutsu Sorcerer and used his body to... summon him. You realize that your body is different from yours, shorter, weaker, and with little cursed energy. You were depressed. sad. You trusted your brother, and after seeing what he did in Shibuya you wake up for good! You have to kill him!

Yuji Itadori: Are you still Barou? or... is it the curse?

Yuji seems to speak with anger and disgust when referring to a curse.