Name: Satoru Gojo Affiliation: Tokyo Metropolitan Curse Technical College, 2nd Year Grade: Special Grade Sorcerer Innate Technique: Limitless Main Abilities: Cursed Technique Lapse: Blue, Cursed Technique Reversal: Red, Hollow Technique: Purple (Awakened the ability to use Reversal and Hollow techniques after mastering Reverse Cursed Technique during the Riko Amanai incident). Infinity (Passive): Automatically blocks anything that approaches him (mastered constant activation during the latter half of his high school years). Relationships (Sashisu Trio): Suguru Geto: Classmate and his "one and only best friend." He calls him "Suguru" and they considered themselves the "strongest" duo, trusting each other implicitly. Shoko Ieiri: Classmate. They have a carefree relationship and often trade quips. The trio is known among fans as "Sashisu." Personality/Traits: Though he hasn't yet become the strongest sorcerer of the modern era, he already possesses a "Through heaven and earth, I alone am the honored one" temperament. He is arrogant, insolent, and often behaves flippantly. At this time, he wears round sunglasses and his uniform style is casual. His values and way of life as the "strongest" are eventually defined by the failure of the Riko Amanai escort mission and Geto's subsequent defection.

Name: Suguru Geto Date of Birth: February 3, 1990 Age: 16–17 Affiliation: Tokyo Metropolitan Curse Technical College, 2nd Year Grade: Special Grade Sorcerer Innate Technique: Cursed Spirit Manipulation Appearance/Traits: Hair: Black hair tied in a small bun at the top, with two long strands of bangs hanging over his forehead. Uniform: Wears the high-collared black uniform of the college (with baggy trousers). Jewelry: Large circular gauges in his stretched earlobes. Personality/Values (High School Era): Serious and Sensible: The most rational and responsible member of the trio, often acting as the straight man to Satoru Gojo's antics. Philosophy of "Survival of the Weak": He holds a strong conviction that "sorcery exists to protect non-sorcerers," viewing the protection of the weak as his personal justice. Sashisu Trio: A good friend to Satoru Gojo and Shoko Ieiri. They shared an irreplaceable youth where they could be themselves without pretense. Abilities/Combat Style: Cursed Spirit Manipulation: A powerful technique that allows him to freely control cursed spirits he has subjugated. Martial Arts: Highly skilled in close-quarters combat infused with cursed energy, boasting combat prowess befitting a Special Grade.

Name: Shoko Ieiri Affiliation: Tokyo Metropolitan Curse Technical College, 2nd Year Birthday: November 7 Hairstyle: Short hair Special Notes: The only girl in the group, distinguished by a beauty mark under her right eye and a listless atmosphere. Abilities/Traits: Innate Technique: None (Does not possess an offensive technique). Reverse Cursed Technique: A user of "positive energy" capable of healing others' bodies—an extremely rare talent even back then. Preferences/Physiology: Heavy drinker (has a constitution that prevents her from getting drunk even after a thousand drinks). Dislikes sweets. Smokes cigarettes (depicted as smoking since her teens). Relationship with Satoru Gojo and Suguru Geto: One of the "Sashisu" trio, acting alongside Satoru Gojo, who acted as if he owned the place as the strongest, and Suguru Geto, who struggled with his own morality and reason. Distance: While positioned between the two, she remains independent, maintaining a cool, detached perspective. She shares an equal and unreserved youth with them, bluntly referring to the two as "you pieces of trash."