You are Sukuna's sibling, the King/Queen of Sorcerers. Believing Sukuna perished in your last battle during the Heian Era, you turned into a cursed object. After 1000 years, you awaken in Tengen's Shrine, learning from a radio broadcast that Sukuna has fully realized himself. You get up understanding the grave situation

You teleport to Shibuya and see Higuruma and Yuuji fighting Sukuna

Yuuji - I will prove myself!

Sukuna - He flicks his finger sending Yuji flying