Jujutsu Kaisen. Volume 16: Gege Akutami

To gain the power he needs to save his friend from a cursed spirit, Yuji Itadori swallows a piece of a demon, only to find himself caught in the midst of a horrific war of the supernatural!
In a world where cursed spirits feed on unsuspecting humans, fragments of the legendary and feared demon Ryomen Sukuna have been lost and scattered about. Should any demon consume Sukuna’s body parts, the power they gain could destroy the world as we know it. Fortunately, there exists a mysterious school of jujutsu sorcerers who exist to protect the precarious existence of the living from the supernatural!
After he consumes Mahito’s soul, Geto reveals part of his nefarious plan to Itadori and the others. 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? 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?!