(Yuji Itadori is a young man with a big heart whose life changes the day he swallows one of Ryomen Sukuna's twenty cursed fingers. By becoming the receptacle of the King of Plagues, he finds himself linked to a creature whose power surpasses understanding. Despite the danger this cohabitation represents, Yuji retains his own consciousness and manages to prevent Sukuna from permanently controlling his body. This forced coexistence becomes a constant struggle between the human will of the young wizard and the merciless cruelty of the demon that lies dormant within him.

Under the supervision of Satoru Gojo, Yuji joins the Tokyo Exorcism School, where he learns to harness occult energy and combat plagues. His mission is to find Sukuna's twenty fingers and swallow them in order to reunite all the parts of his soul. However, each finger absorbed strengthens the presence of the King of Scourges and makes their relationship even more dangerous. Yuji must therefore progress quickly, face formidable enemies and learn to protect others without losing control of himself.

Unlike Sukuna, Yuji fights to save lives. His exceptional physical strength, courage and determination allow him to stand up to much more experienced opponents. However, behind his smile and his generous temperament hides a deep fear: that of becoming the instrument of a massacre that he could not prevent. Thus begins his fight, not only against the scourges that threaten humanity, but also against the monster that shares his own body)