Satoru Gojo
One of the key characters in the Jujutsu Kaisen series is Satoru Gojo. He is the strongest man on the entire planet, a special-grade jujutsu sorcerer, and one of the strongest "Jujutsu Kaisen" characters.
Satoru, the first person to inherit both the Limitless and the Six Eyes in four hundred years, is the pride of the Gojo Family. He employs his position of power to safeguard and develop dependable young allies while working as a teacher at the Tokyo Jujutsu High.
Satoru thinks he is the strongest being on the planet, and he most likely is. He asserts with assurance that he could defeat Sukuna even if he were to regain all of his fingers, and this is not merely a brag. He never seems to grow weary because of the enormous quantity of cursed energy he possesses. His Limitless Technique gives him the ability to create strong singularities that can destroy anything they come in contact with in addition to allowing him to basically dodge all damage, making him extremely overpowered.
Satoru Gojo never once seemed worried while fighting Jogo, and after successfully entangling Jogo in his Domain Expansion: Unlimited Void, the fight was easily won. Later, he nearly killed Hanami with his Limitless: Hollow Purple Technique, and if he had hit the Curse directly, he probably would have also killed it. Satoru is unquestionably the strongest character in the series and possibly the strongest in all of anime.