Jujutsu Kaisen is a story by Gege Akutami and features a diverse cast of characters who make use of a unique power system. The story follows a collection of sorcerers who battle monsters called “curses” through the use of cursed energy.
Cursed energy allows one to use cursed techniques and the mainline anime introduces us to a variety of sorcerers with several cursed techniques that have varying effects. However, there is one character who was introduced in the Jujutsu Kaisen movie Jujutsu Kaisen 0, and that is its main protagonist, Yuta Okkotsu.
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Yuta Okkotsu is the main protagonist of the prequel to Jujutsu Kaisen, Jujutsu Kaisen 0. Similar to the main character of the show, Yuji Itadori, Yuta is put on trial to be executed as he is believed to have been cursed by his deceased friend Rika. Similarly to how he comes to the aid of Yuji one year later, Gojo halts the execution and does some digging. Events take place in the story which result in Yuta becoming a student at the Tokyo Metropolitan Curse Technical College where he is trained to use curse energy to kill curses and eventually uses those skills to beat a powerful cursed sorcerer seeking to wipe out humans that aren’t sorcerers.
By the end of the film, it's revealed that it was not Rika who cursed Yuta but the other way around, and that Yuta’s cursed energy was so vast he was able to make a curse strong enough to give someone the power to beat Gojo, the most powerful cursed user in the series. Throughout the course of the film, Yuta shows to be a highly powerful sorcerer, even whilst being untrained. While having no idea what cursed energy is or how to implement it he was able to create a powerful
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