Jujutsu Kaisen (Paperback) Vol. 16

After he consumes Mahito's soul, Geto reveals part of his nefarious
plan to Itadori and gang. In that moment, Choso recognizes the evil
sorcerer possessing Geto's body and is filled with rage! Who is this
evil sorcerer, and what relation do they have to Choso? Meanwhile,
now that Gojo is imprisoned and the foundations of jujutsu society
are crumbling, what will happen to the world as it devolves into
destruction and chaos?!