Noritoshi Kamo (Ancestor)

Noritoshi Kamo is an antagonist in the Jujutsu Kaisen series. He lived over a hundred and fifty years ago when he conducted research resulting in the Cursed Womb: Death Paintings. Noritoshi Kamo is regarded as the evilest jujutsu sorcerer in history and a stain on the Kamo Family.

Noritoshi's body was inhabited by an older entity who claims to have gone by many names. They use a cursed technique that change out the brains of sorcerers in order to possess their bodies. This same person now inhabits the thought to be deceased Suguru Geto's body and has assumed his identity as Pseudo-Geto (（）).

Appearance
Noritoshi, in his original body, was seen to be an older-looking man with short dark hair, worn slicked back, and a small mustache. He had narrow eyes and had a straight, stitched scar running horizontally through his forehead. He wore what appears to be a dark yukata and sported an umbrella.

As Suguru Geto, Noritoshi takes the same appearance as Suguru himself, only with the same stitched scar through his head. It was shown that Noritoshi was able to remove the top part of his head in Suguru's body and reveal his brain.

Personality
Noritoshi has a reputation as a cruel man considered both a blot on the Kamo Family and the evilest jujutsu sorcerer to ever live. His experiments during the Meiji Era were so vile all records were destroyed and even the curses that resulted from them, despite having no hatred for humanity, despised him. While in the body of Suguru Geto, Noritoshi displays a relaxed, cheerful and cocky attitude.

Although willing to work with cursed spirits to achieve his own ends, he reacted negatively when these spirits acted like they were his equal. He proved to be a civil collaborator as he told Jogo and the others exactly what they needed to do and even formed a friendly bond with Mahito. In his spare time Noritoshi would even play board games with them. This relaxed and condescending attitude remained during fights, where he would praise the abilities of his opponents. Although Noritoshi occasionally pauses claiming that he is talking like somebody else. This implies that at least some of his habits come from the original Geto's personality influencing him.

As shown in his conversation with Yuki Tsukumo, Noritoshi believes that the next stage of human evolution is not "removing themselves of cursed energy", but is instead "optimizing cursed energy". This belief being the main reason to his actions and all of his unethical and inhuman experimentation on both cursed spirits and human beings and the main motivation for his current plots.

Abilities
Noritoshi's abilities are currently unknown. He is however incredibly knowledgeable about curses and jujutsu, as proven by his experiments with Death Womb Paintings alongside his barrier techniques. His most notable cursed technique allows him to swap bodies with another person, even if they are dead. Once he is inside a body, Noritoshi gains access to all their innate techniques. Even the Six Eyes cannot recognize him as an imposter as he retains the host's cursed energy.

Body Possession

 * Suguru Geto: Currently, Noritoshi Kamo has taken Suguru Geto as his host body, effectively giving him access to all of Geto's memories, skills and jujutsu. This is seen where he could now apparently access all of Geto's Cursed Spirit Manipulation techniques.
 * Cursed Spirits: Due to gaining Geto's body, Noritoshi was shown to have acquired numerous cursed spirit's as his personal familiars and has deployed them to fight off numerous opponents and bombard them with a variety of different cursed technique that each spirit possess.
 * Smallpox Deity: While inside Geto's body, Noritoshi has shown to have acquired a powerful special grade cursed spirit capable of creating its own unique Innate Domain. As shown during its battle against Mei Mei, it was powerful enough to nearly corner her if not for the assistance of her brother to distract it to give her a chance to finish it off.
 * Mahito: Later after acquiring Mahito, he was granted access to the latter's Idle Transfiguration technique.
 * Maximum Uzumaki: The Maximum Uzumaki technique of Cursed Spirit Manipulation combines the cursed spirits the user has absorbed into one and uses it as a powerful attack of super condensed cursed energy. While at glance it seems to negate Cursed Spirit Manipulation's main advantage, its wide arsenal of cursed techniques due to losing access to the curses used in the attack, its true potential is revealed when used on cursed spirits of semi-grade 1 or higher as Maximum Uzumaki extracts their innate cursed technique, allowing the user to keep the techniques.The author confirmed that if Noritoshi Kamo(ancestor) didn't use the lower level curses to attack the town and instead used them in this attack, he would have beaten Yuta Okkotsu.

Trivia

 * Noritoshi Kamo's name is pronounced the same way as his relative, Noritoshi Kamo, but they are written differently.