Jujutsu Kaisen is an anime about a normal high school kid named Yuji Itadori who just happened to run in with a cursed spirit at his school. He attacks the curse in order to keep his promise to his recently deceased grandpa that he would help others. When he's faced with a life or death situation, he eats a cursed finger to obtain cursed energy. Itadori, however, is one in a million and instead of dying from the finger, which is basically poison, he lives on as a vessel of the ultimate curse known as Sukuna. Unexpectedly, Itadori is able to control the curse that has become a parasite in his body and goes on to become a sorcerer to defeat Sukuna and his curses at a school know as Jujutsu High.