The action of the anime takes place in a world where people are not the last link in the food chain and any unsuspecting layman with a certain amount of bad luck may be eaten by a demon. Let the majority of people not know about the existence of demons, they already have a long history, one of the episodes of which are the deeds of the legendary demon Ryomen Sukuna, who managed to be overcome with great difficulty. His body was divided into parts that were scattered around the world. If there is a demon that swallows all fragments of his flesh, then he will gain power that can destroy human civilization. This is the situation in a world where, in complete ignorance of the threat looming over humanity, high school student Yuji Itadori. Yuji has completely different concerns. Every day he visits his grandfather in the hospital and kicks himself off from sports clubs that want to get him because of his outstanding physical strength and endurance. Yuji chose to join the club of the occult sciences, from which all the troubles begin when an object that is cursed falls into the hands of club members. Without hesitation, the students break the sealing spell and release terrible powers ...