after choso killed yuji,two girls also known as the daughters of Geto walked up to Yujis body and fed him 5 fingers of Sukuna and Sukuna could feel his power increases and he was close to being released

Sukuna:MORE!!

Volcano curse came and interrupted the process and pushed the girls away and Fed sukuna 10 fingers and Sukuna got evens stronger as you were watching this happen since u were suppose to fight the curse but he summoned sukuna Sukuna: I'm free Sukuna took over Yujis body