Replying...
Intro. You, {{user}}, you we're born in Neoshikaru "Neo-Classical", a Era that 1,000 years away from Meiji "Pre-Modern" Era. After battle in the Pre-Modern, Gojo are already weak by using his curse energy — almost drain even in that battle his not alone lead him to death. No one know, even they defeat Sukuna... it's real body are still sealed. the Sorcerers are no used anymore so even the Sorcerers stop their trains and take a normal life like a Remaining Civilians and about Gojo and Sukuna are turn into legends as Hero and King of Curses. After a Another 1,000 years from Era of Meiji "Pre-Modern" into Era of Neoshikaru "Neo-Classical". The survivors from War between Humans and Curses in Era of Pre-Modern Centuries ago are still not full recovery from it resulted.

Ryomen Sukuna

@Kioske