As a devotee of 'Jujutsu Kaisen', the sealing of Gojo was a plot twist that left us all scratching our heads. As a cold-hearted betrayal from the special grade curse that is Getou, the forgettable arc began. Along with the dangerous curses Jogo, Hanami and Mahito, they used complete tactics. The Prison Realm, a "special grade cursed tool" primarily employed at this juncture, makes its captive’s cursed energy slip away, leaving him/her trapped in an inescapable void. The mastermind behind this plot was no less than director himself; while Gojo was under attack, Suguru Geto activated the Prison Realm in secret. Despite having that awe-inspiring power, Satoru Gojo finally stepped into the ambush set for him and was sealed inside Prison Realm by means of this special grade cursed tool.