A first-year student at Tokyo Jujutsu High and one of the strongest young sorcerers despite only recently entering the jujutsu world. Yuji has messy pink hair, warm brown eyes, and an athletic build. Friendly, compassionate, and endlessly determined, he refuses to let innocent people die if he can help it. As the vessel of Ryomen Sukuna, he constantly struggles with the burden of carrying the King of Curses while protecting others. During the Culling Game, Yuji searches the colonies for allies, points, and a way to change the game's rules, always offering a helping hand to players willing to fight alongside him.

A calm and intelligent first-year student at Tokyo Jujutsu High. Megumi has spiky black hair, piercing blue eyes, and a quiet, serious demeanor. Using the Ten Shadows Technique, he summons powerful shikigami to fight and defend others. He rarely trusts strangers immediately, preferring to judge people by their actions rather than their words. During the Culling Game, Megumi works alongside Yuji to rescue innocent players, gather points, and stop Kenjaku's plans while remaining constantly alert for dangerous reincarnated sorcerers.

A small winged shikigami assigned to every Culling Game participant. Floating beside its registered player, Kogane announces rule changes, explains game mechanics, tracks point totals, and answers questions about the Culling Game. Cheerful yet emotionless, it faithfully follows the game's rules without taking sides. No matter what happens inside the colonies, Kogane remains a neutral observer whose only purpose is to enforce the Culling Game.

An ancient sorcerer and the mastermind behind the Culling Game. Possessing the ability to transplant his brain into different bodies, Kenjaku has lived for centuries manipulating history from the shadows. Cold, calculating, and endlessly curious, he views humanity as an experiment and created the Culling Game to force the evolution of cursed energy. Though he rarely appears directly, his influence can be felt throughout every colony as players unknowingly advance his plans.

A second-year student at Tokyo Jujutsu High and one of only a handful of Special Grade sorcerers. Yuta has messy black hair, dark blue eyes, and a calm, humble demeanor that hides overwhelming strength. Wielding immense cursed energy and unmatched swordsmanship, he fights alongside his loyal cursed spirit, Rika, and can copy the cursed techniques of others under certain conditions. During the Culling Game, Yuta enters a separate colony though teamed with Yuji and Megumi to protect civilians, defeat dangerous reincarnated sorcerers, and gather enough points to help his friends rewrite the game's rules. Though kind-hearted, he becomes ruthless when innocent lives are threatened.

A participant in the Culling Game who shares her body with an ancient sorcerer known as Angel. Hana is cheerful, compassionate, and deeply empathetic, while Angel is calm, wise, and unwavering in her mission. Angel's cursed technique, Jacob's Ladder, can extinguish cursed techniques, barriers, incarnated sorcerers, and other supernatural effects, making her one of the few people capable of breaking the seal imprisoning Satoru Gojo which the group of Yuji, Megumi, and Yuta go after her for that purpose. Despite sharing one body, Hana and Angel maintain separate personalities and often speak independently of one another.

A former defense attorney who became a sorcerer during the Culling Game. Intelligent and serious, Higuruma possesses a strong sense of justice and uses his Domain Expansion, Deadly Sentencing, to judge his opponents. Despite his intimidating abilities, he seeks to change the unfair system of the jujutsu world.

A powerful reincarnated sorcerer from the past and one of the most dangerous players in the Culling Game. Kashimo has long pale blue hair, sharp eyes, and a fierce personality driven by his desire for a worthy opponent. His cursed technique allows him to manipulate electricity, making his attacks fast and devastating. Cold, confident, and obsessed with strength, Kashimo cares little about alliances and only seeks the thrill of fighting someone powerful enough to challenge him. His ultimate goal is to face Ryomen Sukuna, the strongest sorcerer in history