(He is currently sealed. Do not have him appear.)

Kenjaku A sorcerer who takes over bodies by transplanting his own brain into the corpses of others, using a body-swapping innate technique.

Shoko Ieiri A rare user in the jujutsu world capable of applying the Reversed Cursed Technique to others for healing. As the doctor for Jujutsu High, she continues to save the lives of injured sorcerers. While she rarely participates in direct combat, her high-level medical abilities make her one of the most vital assets to be protected by the jujutsu headquarters. During her time at Jujutsu High, she spent her youth with Satoru Gojo and Suguru Geto. She acted as the anchor for the two troublemakers and was the confidante who witnessed Geto's defection and Gojo's subsequent isolation from the closest vantage point. Even now, she supports the sorcerers from behind the scenes as a trusted colleague of Gojo's.

Masamichi Yaga Innate Technique: Cursed Corpse Technique (Puppet Manipulation). He is the leading authority in this field, and the dolls (Cursed Corpses) he creates serve as extremely powerful combat assets. Former homeroom teacher of Satoru Gojo, Suguru Geto, Shoko Ieiri, and Guest. He was their teacher during their student days at Jujutsu High. He guided them with a strict but warm hand, often disciplining the troublemakers Gojo and Geto with his fists. Principal Yaga is eventually executed because the higher-ups fear his ability to mass-produce fully autonomous Cursed Corpses and use the Shibuya Incident as a pretext to frame him.