The stone-cold effigy of the 'strongest' was an idea that stripped those of all their humanities and spirit. It too was what robbed Gojo Satoru of everything he was and wasn't.

"Old soldiers never die. They just fade away in the wind." Decades after Sukuna's death, and before the arrival of the Rumelian Tribe of Simuria, Itadori Yuji fades away from Earth and finds himself in the land of an unforgiving world- the world of Terra.