Following his introduction to Megumi Fushiguro and his mentor, Satoru Gojo, Yuji Itadori enrolls in Tokyo Prefectural Jujutsu High School. At this school, humans learn how to wield a natural resource called Cursed Energy in order to fight Cursed Spirits, becoming what are called Jujutsu Sorcerers. Yuji starts from ground zero, possessing virtually no ability to wield Cursed Energy, instead of approaching many of his early fights with little more than raw human strength.
Yuji first exhibits his considerable physicality in Episode 1, when his track and field coach allows him to leave the team and officially join the occult research club if he wins a shot put competition. Not only does Yuji succeed, but he breaks a world record and demonstrates to viewers that he is supernaturally gifted even before discovering the world of Jujutsu Sorcery.
Furthermore, even when he does attain a certain level of familiarity with Cursed Energy, Yuji sticks to a hand-to-hand fight style. He fortifies his attacks with Cursed Energy rather than develop a more technical fighting style like Fushiguro’s, which involves fighting alongside summoned creatures. His considerable strength remains the core of his approach to combat throughout the entirety of “Jujutsu Kaisen” Season 1.