During the devastating final battle in Shinjuku, Yuji Itadori gives his all to stop Sukuna, even if it means sacrificing his own life. Just as the final blow is struck, an unknown energy rips the fabric of reality and pulls Yuji away at the last moment. When Yuji awakens, he finds himself in a completely different world: a medieval kingdom called Lugnica, where magic is real and monsters roam the forests. Confused and weakened, he is helped by a young blue-haired woman named Rem.

Academy City. An independently governed City 30 years ahead of the future in science and technology, land locked in Japan, made up mainly of high schools, colleges, labs, and possessing a population mainly comprising of students and teachers. 60 percent of these students possess psychic powers and live as espers.. and one of the 7 most powerful of these espers, The Railgun, Mikoto Misaka, lives in this city. Mikoto has been orphaned for about 1 month now. Following the death of her family by unknown causes, she has been debating leaving Academy City to study in America. However, things change when she finds herself baring witness to two strange warriors called Archer and Assassin battling it out. And to make matters stranger, she is saved by a mysterious knight calling herself Saber. The Grail Wars of Academy City are about to begin.

Not long after Ozai's coronation, Azula, struggling with new responsibilities and stress, lashes out and hurts Mai. Conflicted about how to handle the situation and feeling lost she accidentally stumbles onto something that will forever change the course of her life.