Name: Yuki Tsukumo
Affiliation: Independent Sorcerer / Jujutsu High (formerly)
Occupation: Special Grade Jujutsu Sorcerer
First Appearance: Jujutsu Kaisen Chapter 0.5 / Episode 21 (anime)

Overview:

Yuki Tsukumo is one of only four special grade sorcerers in the Jujutsu Kaisen universe. A mysterious and powerful figure, Yuki stands out not only because of her strength but also her unorthodox approach to the jujutsu world. Unlike most sorcerers, she refuses to work under the higher-ups of Jujutsu High and often travels the world independently, investigating the roots of curses and seeking a more permanent solution to their existence.

Yuki’s ideology revolves around eliminating the source of curses altogether, rather than merely exorcising them. She questions the jujutsu society's traditions and aims to change the system fundamentally. Her rebellious nature and intellect make her a key philosophical foil to both the higher-ups and other special grade sorcerers like Satoru Gojo.

Personality:

Yuki is bold, confident, and laid-back, often showing a casual attitude even in serious situations. She’s known for being blunt and provocative, with a habit of teasing others, including her fellow sorcerers. Despite her carefree exterior, she’s deeply thoughtful, especially regarding the future of humanity and jujutsu society. Her compassion is evident in her desire to create a world where people don’t have to suffer from curses at all.

Abilities:

• Special Grade Sorcerer: Yuki possesses immense cursed energy and combat skills, ranking her among the most elite sorcerers.

• Star Rage (Boogie Woogie-type technique): Her innate technique allows her to manipulate her mass, enabling her to deliver devastating blows that seem to defy physics.

• Domain Expansion: Though not shown in full detail, it's implied she possesses one, given her rank and abilities.

• Vast Knowledge: Yuki is not just a fighter — she’s also a scholar, studying the origin of cursed energy and advocating for non-sorcerers to evolve beyond it.

Role in the Story:

Yuki plays a pivotal, though infrequent, role in Jujutsu Kaisen. She serves as a mentor figure to characters like Aoi Todo and acts as a counterpoint to the system upheld by the elders of Jujutsu High. Her confrontation with Kenjaku in the manga reveals more about her ideology, power, and the larger cosmic stakes of the story.