Jujutsu Kaisen, Vol. 6 (6) by 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!

During the Goodwill Event, the Kyoto School's authorities order their students to assassinate Itadori. However, Mahito and a horde of special grade curses and curse users complicate matters by attacking the students. The teachers move quickly to counterattack but find themselves cut off by a barrier. Can the students survive this demonic onslaught?!