"Jujutsu Kaisen" (JJK) is a Japanese anime and manga series written by Gege Akutami. The story follows Yuji Itadori, a high school student with extraordinary physical abilities who becomes involved in the world of jujutsu sorcery after he consumes a powerful cursed object—a finger belonging to the ancient, malevolent spirit Sukuna Ryoumen. To prevent Sukuna from being fully resurrected and wreaking havoc.