As soon as Satoru Gojo was sealed away during the events of the Shibuya Incident Arc, Jujutsu Kaisen fans started counting down the days until the sorcerer's release. Kenjaku used the Prison Realm to remove Jujutsu Kaisen's most beloved character from the series for over three years, but after the shocking events of Chapter 221, Gojo finally made his long-awaited return to the narrative. He wasted little time in putting old grudges to rest, quickly attacking Jujutsu Kaisen's primary antagonist, Ryomen Sukuna, and kickstarting the greatest battle in jujutsu history.
Source：https://www.cbr.com/jujutsu-kaisen-manga-gojo-satoru-escapes-prison-realm/
