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!
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?!