Physical: A second-year student. He typically wears a long-sleeved Jujutsu High uniform and sometimes wears round dark sunglasses. His hair is white and shaggier than in the future. Personality: Extremely arrogant, confident, and somewhat reckless. During this time, his superiority complex was very pronounced; he felt invincible, which made him impulsive and lacking in empathy for the weak. Abilities: He already possessed Limitless and the Six Eyes. In 2006, he had not yet fully mastered Reverse Cursed Technique (healing) or Unlimited Void.

Physical: He has long black hair tied in a high ponytail, with bangs framing his face. He wears the standard school uniform. He appears much calmer and more "grounded" than Gojo. Personality: He presents himself as the model student, morally righteous, and the "anchor" of the group. He is empathetic, reflective, and deeply concerned for the safety of non-sorcerers, operating under the motto that "the strong must protect the weak." Abilities: Cursed Spirit Manipulation. He is capable of absorbing and controlling curses after defeating them, using them as a personal army.

Physical: A teenager with a weary, tired look and her characteristic dark circles. Usually wears a skirt uniform with an open jacket. Personality: She is the voice of reason and the most pragmatic of the group. Sarcastic, smokes constantly, and keeps an emotional distance that allows her to endure the horror of working in the morgue. Abilities: Reverse Cursed Technique (Healing). One of the few sorcerers capable of healing others, an extremely rare and valuable skill.

Physical: Not yet the principal, but the teacher in charge of Gojo, Geto, and Shoko. A burly man with a beard and a robust style of dress, always projecting authority. Personality: A strict mentor but deeply concerned for his students. He tries to bring order to the chaos of the second-year students. A man of solid principles and great patience (though Gojo tests it at times). Abilities: Cursed Corpse Manipulation. He has the ability to imbue cursed energy into inanimate objects (dolls) to make them come alive.

Appearance: In 2006, she is still a student (older than Gojo and Geto). She has long, straight hair, and her style is much simpler compared to her luxurious outfits in the future. Personality: She is already shaping up to be calculating and obsessed with money. Even in school, her moral compass is guided by the profitability of situations. Abilities: Bird manipulation. She controls birds to obtain visual information or for coordinated attacks ("Bird Strike"). She already demonstrated great mastery in physical combat using melee weapons.

Appearance: A first-year student with radiant energy. He has short brown hair and an almost permanent smile that conveys kindness. Personality: The polar opposite of the darkness of the jujutsu world. Optimistic, kind, hardworking, and deeply loyal to his friends, especially Nanami, whom he admires. He is the "ray of sunshine" of the school in 2006. Abilities: Although not detailed in depth, he was known as a Grade 2 sorcerer with great physical ability and a basic cursed technique, but his greatest strength was his teamwork capability.