History Sandbox / JujutsuKaisenSuguruGeto

[[quoteright:205:https://static.tvtropes.org/pmwiki/pub/images/suguru_geto_jjk_0.png]]

--> ''"[[MisanthropeSupreme Obey me, monkeys.]]"''

* EvilFormerFriend: Gojo's. The two were best friends until Geto's loss of faith in the cycle of exorcism led him to decide to kill all non-sorcerers.

* FaceHeelTurn: The Hidden Inventory arc shows that Geto used to be a hero and all-around NiceGuy. He may have had some GoodIsNotNice qualities that he shared with Gojo, but he always wanted to do the right thing, even if it meant defying his superiors. A series of cruel and unnecessary deaths, along with his own growing feelings of hopelessness and doubt drive him towards his heel turn.

* {{Irony}}: A sorcerer who consumed and exploited curses has been himself assimilated, with his body now a puppet for a villain using his identity and powers for their own ends. Furthermore, his use of "monkey" as a derogative term for {{Muggle}}s only came about after Toji, BadassNormal taken to the logical extreme, beat his ass in a CurbStompBattle and then mocked him and Gojo for being defeated by a mere "Jujutsu-less monkey".
* MageBornOfMuggles: Ironically, his parents were ordinary humans with no ties to the world of Curses, yet Geto had TheGift for both Jujutsu and martial arts. His parents ended up some of his first victims.

* OvershadowedByAwesome: If he wasn't from the same generation that produced [[TheGift Gojo]], he would probably be the greatest Sorcerer of the modern day with a Technique that could change the world of Sorcerers entirely. [[TookALevelInJerkass Due to feeling overshadowed by Gojo's ascent to the true]] WorldsStrongestMan, his own dwindling enthusiasm for the Jujutsu profession because of {{Muggle}}s feeling ungrateful, if not outright unknowing of the hard work of Sorcerers, he ends up becoming one of the greatest calamities the Jujutsu world would ever see. [[spoiler:[[BrainTransplant Including post-mortem]].]]

* TraumaCongaLine: Geto's StartOfDarkness began with Riko Amanai's pointless death, Geto's crushing loss to Toji Fushiguro, and watching the Star Religious Group, a bunch of non-Sorcerers, clap and cheer over Riko's corpse. In the year since, Geto struggled to deal with his increasing lack of purpose and disdain for non-Sorcerers; all the while, Gojo mastered his Limitless technique and definitively became stronger than Geto. Yuki Tsukumo then informs him that it is non-sorcerers who produce Cursed Spirits simply by existing, inadvertently exacerbating Geto's ire for them; soon after, fellow sorcerer Yu Haibara dies due to a clerical error that mislabeled the danger of a Cursed Spirit. The last straw was finding out that a village was abusing two little girls and blamed them for the Curses that plagued them. Geto snaps, murders the entire village, and decides to solve the Cursed Spirits problem by starting a campaign to kill every non-Sorcerer in the world.

** Centipedes are also frequently used as the symbol for [[https://en.wikipedia.org/wiki/Gu_(poison) Gu[=/=]Kodoku rituals]] which his Culling Game closely resembles in having the Players kill one another to survive in an inclosed space in hopes that the last player surviving will revolutionize Cursed Energy. Furthermore, most of his {{Familiar}}s take the form of centipedes, either as swarms or a single gigantic one to be used as a ramming projectile.

* AsskickingLeadsToLeadership: [[spoiler: After becoming ungodly powerful by stacking his deck with cards like Cursed Spirit Manipulation and a host of {{Ancient Evil}}s at his beck and call, with even more Cursed Techniques than that at his disposal, he effortlessly upsets the power balance of the Jujutsu Association and takes over the entire thing in a matter of days after the Shibuya Incident.]]

* BigBad: Of the main series.

* CaptainErsatz: To Medusa from ''Manga/SoulEater'', both being a long-lived MadScientist and EvilutionaryBiologist that utilized malevolent forces for their own ends (Madness and Insanity, Cursed Energy and Curses Spirits), are mainly responsible for a good chunk of the series (Medusa freeing the Kishin, Geto setting up and creating the Culling Games), were involved in the existence a major character [[spoiler: whom they both gave birth to (Crona, Yuji and the Cursed Paintings, with Yuji having a foreign entity implanted intohimm that gives him his power and the Paintings having blood-themed abilities like the former)]] as part of an experiment on top of needing to possess someone's body for their continued plans.

* ComboPlatterPowers[=/=]ConfusionFu: Kenjaku explains to Yuji that this is one of the biggest advantages of Cursed Spirit Manipulation; He has no lack of powerful Cursed Spirits at his disposal due to being a purveyor of {{Ancient Evil}}s and can use them in tandem, but even low-grade ones with interesting Techniques can become menaces in his hands by enhancing them with his own vast Cursed Energy and swarming his opponent with them. The combo of Cursed Spirit techniques he hits Yuji with in Shibuya borders on YouCannotGraspTheTrueForm, getting covered in damaging blood and swarmed by carnivorous centipedes, while simultaneously falling down a repeating sinkhole until he's eventually slammed into the ground with great force.

* DevourTheDragon: [[spoiler:He does this to Mahito at the end of the Shibuya Incident, showing up after he's severly weakened by his fight with Yuji and Todo and absorbing him with Cursed Spirit Manipulation to take Idle Transfiguration for himself . Kenjaku states he would've liked to take Jogo's Technique too, but brushes off the Earth Curse's death as "It is what it is"]].

* EvilerThanThou: It's quickly made clear during the Shibuya Incident that he's ''far'' more dangerous then his Disaster Curse minions, something Mahito [[DevourTheDragon finds out the hard way]] after the Disaster Curses manage to help him seal Gojo. WordOfGod also stated in the Databook that Kenjaku was confident that he and his army of Curses could have taken on all of the Disaster Curses at once if it became necessary, and going by the stunts he's pulled off since then [[ManOfKryptonite and Geto's Technique making him an impossible opponent for Cursed Spirits]], that probably isn't an overstatement.

* EvilutionaryBiologist: Kenjaku wants to optimize Cursed Energy and bring forth the peak of its potential, which he believes can't be found in humans as they are as he has already pushed that limit as far as it can go. To fix this, he's willing to commit abhorrant acts and has already been doing so in the shadows for centuries, and by the time of the main series, he's not above plunging the whole world into chaos in the name of discovering the next stage of humanity.

* HumanoidAbomination: As the second picture in his profile here shows, Kenjaku is really an ''ancient'' horrific brain with [[TooManyMouths a mouth with fanged teeth]] that has somehow learned to nestle itself in other skulls and then stitch the skullcap back in place with surgical precision to pilot the body as if it were it's own; Even to Gojo's [[SuperSenses Six Eyes]], Kenjaku's Cursed Energy registers as Geto's.

* LogicalWeakness: Unlike Megumi who can de-summon his damaged {{Familiar}}s to save them for another day and receiving benefits for his remaining ones when a Shikigami is permanently lost, Kenjaku's Cursed Spirits can be exorcised like any other Curse. Against a Sorcerer of Yuki Tsukumo's caliber, who can effortlessly destroy his Elephant God in one blow and has AntiMagic-like properties while using her Technique that protect her from their powers, bringing out any further Cursed Spirits would just be giving up potentially valuable aces up his sleeves as CannonFodder, forcing him to fight using his GravityMaster powers and Domain instead.

* PetTheDog: [[spoiler:Chapter 160 shows him personally escorting civilians caught within the Culling Game out of the danger zones while they are dreaming, giving each person one chance to escape the battlefields rather than just leaving them. Given his personality, he likely did so for pragmatic reasons involving his plan rather than actual benevolence, but his actions still uncharacteristically prevented the loss of innocent life. He also [[SincerityMode sincerely thanks]] Sasaki, Yuji's schoolfriend that he saved in the first chapter from the Curses, for getting along with his son, which has absolutely no benefit to him, but indicates that he was aware of Yuji and his lifestyle even before he consumed Sukuna's finger]].

* RefugeInAudacity: Jujutsu society is already ''messed up'' on several levels, but this guy is by far the worst of the lot. After his plans start unfolding, no one not already on his side speak of him with nothing less than absolute revulsion. Cruel mindgames, wicked rituals, repeatedly raping a woman who sought SacredHospitality because she could produce Cursed Spirit-human hybrids ForScience, exploiting Jin Itadori's regret over not having a child with his first wife to breed the DesignerBaby Yuji... There is seemingly no taboo Kenjaku won't deliberately violate while skirting the consequences of in his quest for seeing how far Cursed Energy truly can go.

* VilerNewVillain: [[ZigzaggingTrope Zig-zagged]]. He freely admits that he lacks Geto's WellIntentionedExtremist motivations, but he's [[NothingPersonal much less malicious]] than the sadistic Disaster Curses or Sukuna.

* TraumaCongaLine: Geto's StartOfDarkness began with Riko Amanai's pointless death, Geto's crushing loss to Toij Fushiguro, and watching the Star Religious Group, a bunch of non-Sorcerers, clap and cheer over Riko's corpse. In the year since, Geto struggled to deal with his increasing lack of purpose and disdain for non-Sorcerers; all the while, Gojo mastered his Limitless technique and definitively became stronger than Geto. Yuki Tsukumo then informs him that it is non-sorcerers who produce Cursed Spirits simply by existing, inadvertently exacerbating Geto's ire for them; soon after, fellow sorcerer Yu Haibara dies due to a clerical error that mislabeled the danger of a Cursed Spirit. The last straw was finding out that a village was abusing two little girls and blamed them for the Curses that plagued them. Geto snaps, murders the entire village, and decides to solve the Cursed Spirits problem by starting a campaign to kill every non-Sorcerer in the world.

* CynicismCatalyst: Riko's tragic death and the cruel circumstances surrounding it are what make Geto lose his faith in humanity, starting him on the path to becoming a MisanthropeSupreme.

* FightingFromTheInside: Despite having been killed, he is revealed to still be alive deep down due to the nature of the second Geto using his body for possession. His body twitches and briefly reacts to Gojo speaking to him, and the second Geto mentions that this is a first.
* {{Irony}}: A sorcerer who consumed and exploited curses has been himself assimilated, with his body now a puppet for a villain using his identity and powers for their own ends.
* MageBornOfMuggles: Ironically, his parents were ordinary humans with no ties to the world of Curses. They ended up some of his first victims.

* AlwaysABiggerFish: In the wake of the Shibuya Incident, it becomes ''supremely'' clear that if everyone else involved in Jujutsu are players in a casino, this guy might as well be the proverbial house that always wins, and the only reason he didn't unleash this power upon the world earlier was because he was [[OlderIsBetter stacking the deck]], [[BattleRoyale setting the table]] and ''[[HumanResources considerably raising]] [[EndOfTheWorldAsWeKnowIt the stakes]].''

* CasualDangerDialogue: Being a MotorMouth by nature he frequently ends up talking his jowels off while casually ducking his opponent's ineffective attacks. His reaction to [[spoiler: barely surviving being at the epicenter of a Black Hole]] was an exasperated ''"Whew, you gave me quite the scare there, honestly."''

** He has strange markings on his forehead. These are stitches, indicating the brain transplant that was used to hijack Geto's body. A somewhat recursive example occurs after and before this is revealed, as his previous identity of Noritoshi Kamo was initially shown with his forehead heavily obscured by shadows, only for Choso to remember a clearer image of him with the same tell-tale stitches across his forehead when he meets his current host, showing that they're the same person. Anybody else with [[MarkOfTheBeast such markings]] is all but certainly a previous host of his, [[spoiler:including Yuji's mother]].

--> ''"It just sounds fascinating, but I won't know for sure until it happens. What if the accumulated Cursed Energy of a hundred million people ends up looking like a funny clown face, then what'd you do? I know I'd laugh."''

* LoopholeAbuse: He is masterful at finding clever workarounds to bypass the restrictions within the practice of Jujutsu, such as his circumvention of the Prison Realm's conditions to capture Gojo or the hundreds of Binding Vows created for the Culling Game that could be voided by hopping between vessels. This includes having set up the Game so that he himself doesn't have to be the Game Master, ensuring it will go on even if something was to happen to him.

* RunningBothSides: [[spoiler:As he explains to Noritoshi, with his BodySurf and heaps of connections gathered over the centuries it should come as no surprise to the heroes that Kenjaku already had a vice grip on Jujutsu Headquarters, to the point where he could waltz in, eliminate the higherups that voted for "Suguru Geto"'s execution order and made Yuta take Yuji's executioner order up again, then plonk himself in as Head of the Kamo Household through his old identity as Noritoshi Kamo to grasp power over the most powerful of the Conservative factions in the Association. Meaning the entire Association has been dancing in the palm of their greatest enemy's hand for centuries.]]
* SimpleYetAwesome: Appears to see Maximum: Uzumaki as this. Uzumaki combines any number of Cursed Spirits he has absorbed into a ball of Cursed Energy and throws the result at the opponent. Geto says he initially found it unexciting, due to how it gets rid of the main advantage of Cursed Spirit Manipulation [[YouCannotGraspTheTrueForm giving him functionally infinite varieties of attacks]]. He reveals, however, that using it on any curses that are Semi-Grade 1 or higher allows the user to steal that Curse's technique for a single use, allowing him to access Mahito's Idle Transfiguration to complete the preparations for the Culling Game. Against Yuki Tsukumo he also demonstrates that even a small Uzumaki can be ''devastating'', and fired in rapid succession and prepared in secret by body-blocking his opponents with Cursed Spirits.

* BecameTheirOwnAntithesis: [[Literature/TheCountOfMonteCristo In a downright Monte Cristo-like act of vengeance]], one of the first things he does after abandoning Jujutsu High is to take over the very Time Vessel Association that ruined his worldview and put the hit on Riko in the first place, [[KickTheSonOfABitch brutally slaughter their leader Sonoda Shigeru in front of their entire leadership and group of sponsors]], and then ask if there were any objections [[SanitySlippage to him becoming the head of the very group that caused his]] StartOfDarkness with immediate effect.

* KickTheSonOfABitch: [[spoiler:During the Shibuya Incident, he mercilessly sends the Disaster Curses to their deaths, and personally betrays and devours Mahito.]]

[[Characters/JujutsuKaisenTokyoPrefecturalJujutsuHighSchool Tokyo Prefectural Jujutsu High School]] ([[Characters/JujutsuKaisenYujiItadori Yuji Itadori]], [[Characters/JujutsuKaisenMegumiFushiguro Megumi Fushiguro]], [[Characters/JujutsuKaisenSatoruGojo Satoru Gojo]]) | [[Characters/JujutsuKaisenKyotoPrefecturalJujutsuHighSchool Kyoto Prefectural Jujutsu High School]] | [[Characters/JujutsuKaisenCursedSpiritsAndCurseUsers Cursed Spirits and Curse Users]] ([[Characters/JujutsuKaisenMahito Mahito]], '''Suguru Geto''') | [[Characters/JujutsuKaisenCullingGamePlayers Culling Game Players]] | [[Characters/JujutsuKaisenZeninClan Zen'in Clan]] | [[Characters/JujutsuKaisenOthers Others]]]]-]]]

* AsskickingEqualsAuthority: [[spoiler: After becoming ungodly powerful by stacking his deck with cards like Cursed Spirit Manipulation and a host of {{Ancient Evil}}s at his beck and call, with even more Cursed Techniques than that at his disposal, he effortlessly upsets the power balance of the Jujutsu Association and takes over the entire thing in a matter of days after the Shibuya Incident.]]

* DissonantSerenity: In stark contrast to [[AxCrazy the absolutely demonic Sukuna]] or [[HumansAreBastards incredibly twisted Mahito]], Kenjaku is remarkably casual and a real chatterbox who always has a serene smile on his face. He has compared the feeling of carrying out his plan to [[ChildrenAreInnocent the feeling of being a toddler joyfully painting on a blank canvas]] despite it involving TheEndOfTheWorldAsWeKnowIt.

* RapeIsASpecialKindOfEvil: One of Kenjaku's worst atrocities was forcibly impregnating a woman with Cursed Spirits to get the result he wanted, causing Choso and the Death Paintings to develop a grudge against him and tainting the name of Noritoshi Kamo forever. What's worse is that, with his view of people as HumanResources, he honestly couldn't care less about the whole affair and merely sees his horrific violation as part of experimentation.

* DelayedOhCrap: He raises one eyebrow in dull curiosity when Yuki Tsukumo prepares her FastballSpecial, only to briefly panic when it smashes his Elephant God to pieces and the follow-up punch snaps his arms like twigs [[MegatonPunch while sending him flying]]. He is similarly incredulous [[spoiler: after splitting her in half, only to freak out when he realizes she's in the process of turning into a black hole, forcing him to think ''very'' fast.]]
* DissonantSerenity: In stark contrast to [[AxCrazy the absolutely demonic Sukuna]] or [[CruelAndUnusualDeath incredibly twisted Mahito]], Kenjaku is remarkably casual and a real chatterbox who always has a serene smile on his face. He has compared the feeling of carrying out his plan [[ChildrenAreInnocent the feeling of a toddler joyfully painting on a blank canvas]] despite it involving TheEndOfTheWorldAsWeKnowIt.

* {{Foreshadowing}}: He has strange markings on his forehead. These are stitches, indicating the brain transplant that was used to hijack Geto's body. A somewhat recursive example occurs after and before this is revealed, as his previous identity of Noritoshi Kamo was initially shown with his forehead heavily obscured by shadows, only for Choso to remember a clearer image of him with the same tell-tale stitches across his forehead when he meets his current host, showing that they're the same person. Anybody else with [[MarkOfTheBeast such markings]] is all but certainly a previous host of his, [[spoiler:including Yuji's mother]].

** Centipedes, which are seen as impure in Japanese folklore, and have legends about them taking over [[GrandTheftMe the corpses of the dead]] as a corruption of immortality by making it come from the body, as opposed to the Buddhist immortality of the soul[=/=]Atman. Him and Mahito even have a brief discussion about how they think the soul and the body are the same thing, and that it is only in Cursed Techniques that worldviews can be dictated for the individual.

* ArchnemesisDad: Choso completely loathes him for the abuse he put the Death Painting's mother through. He's later also implied to be [[spoiler:Yuji's archnemesis ''mom'', having birthed him in one of his previous bodies seemingly for the purpose of turning him into a host for Sukuna]].

* BrainTransplant: His personal technique lets him access the bodies of others, including corpses, by putting his brain into their skull. How exactly this is done is not clear, but it's probably [[BodyHorror best left to the imagination]].

* DelayedOhCrap: He raises one eyebrow in dull curiosity when Yuki Tsukumo prepares her FastballSpecial, only to briefly panic when it smashes his Elephant God to pieces and the follow-up punch snaps his arms like twigs [[MegatonPunch while sending him flying]].

* EvenEvilHasLovedOnes: [[DownplayedTrope Downplayed]]. While he considers the Death Paintings [[AbusiveParents nothing but failed experiments]] and will stomp out Choso with a smile on his face while rubbing in how much the Death Paintings dissapointed him, he's implied to hold some genuine affection for Yuji, telling the boy that he "expects great things" from him, and at one point [[SincerityMode genuinely thanking Sasaki for being friends with his son]].

* EvilMatriarch: A very interesting variation; [[spoiler:it is revealed that Yuji Itadori's mother was a previous vessel of his, giving him a very twisted relation to the main protagonist.]]

--> ''"It just sounds fun. But I won't know whether or not it is until it's done. What if the conglomeration of Cursed Energy ends up looking like a funny face? Wouldn't that be hilarious?"''

* GravityMaster: He possesses an Innate Technique that lets him erect a field of heavy gravity around for six seconds at a time. Kenjaku furthers its use by combining this with his Elephant God (seemingly modelled on the Hindu deity [[https://en.m.wikipedia.org/wiki/Ganesha Ganesha]]) Cursed Spirit's ability to "remove obstacles", seemingly through the power to levitate objects. The first grim use of this makes fourty-five members of U.S Special Forces float into the air before slamming them into the ground at lethal speed while demonstrating the threat of Jujutsu to the White House cabinet.

** Another perk of acquiring Geto's body, since Geto could take out anyone short of a Special-Grade sorcerer or Toji with his bare hands. In Shibuya he [[NoSell snaps Miwa's katana in half with his palm]] after catching her surprise attack and walks Choso like a dog when they brawl.

* LukeIAmYourFather: [[spoiler:Is actually in a way Yuji's ''mother'', as she was a prior host of his.]]

* SimpleYetAwesome: Appears to see Maximum: Uzumaki as this. Uzumaki combines all currently absorbed Cursed Spirits into one and throws the result at the opponent. Geto says he initially found it unexciting, due to how it gets rid of the main advantage of Cursed Spirit Manipulation. He reveals, however, that using it on any curses that are Semi-Grade 1 or higher allows the user to steal that Curse's technique for a single use, allowing him to access Mahito's Idle Transfiguration to complete the preparations for the Culling Game. Against Yuki Tsukumo he also demonstrates that even a small Uzumaki can be ''devastating'', and fired in rapid succession.
* SuperpowerLottery: His BodySurf Innate Technique is already useful by itself, but it's greatest advantage is that it gives Kenjaku the entirely unique ability to [[RevivalLoophole break Binding Vows without suffering a single negative repercussion]], which is thought to be impossible by most sorcerers and has made it ''very'' easy for him to manipulate people. He specifically sought out Geto's body to acquire Cursed Spirit Manipulation, a Cursed Technique with the same level of potential as Gojo's [[StoryBreakerPower Infinity]], and ''then'' he reveals that he can use the Techniques of the Curses he eats for a single use on top of having a GravityMaster Technique up his sleeve.

* CruelElephant: One of his most powerful Cursed Spirits at disposal is a Special Grade diabolical-looking four-armed elephant in monk's robes and prayer beads around it's wrists, which possesses a Technique based off of the Hindu deity Ganesha's ability as a "Remover of obstacles".

* EvilutionaryBiologist: Kenjaku wants to optimize Cursed Energy and bring forth the peak of it's potential, which he believes can't be found in humans as they are as he has already pushed that limit as far as it can go. To fix this, he's willing to commit abhorrant acts and has already been doing so in the shadows for centuries, and by the time of the main series, he's not above plunging the whole world into chaos in the name of discovering the next stage of humanity.

* GravityMaster: He possesses an Innate Technique that lets him erect a field of heavy gravity around for six seconds at a time. Kenjaku furthers it's use by combining this with his Elephant God (seemingly modelled on the Hindu deity [[https://en.m.wikipedia.org/wiki/Ganesha Ganesha]]) Cursed Spirit's ability to "remove obstacles", seemingly through the power to levitate objects. The first grim use of this makes fourty-five members of U.S Special Forces float into the air before slamming them into the ground at lethal speed while demonstrating the threat of Jujutsu to the White House cabinet.

* SuperpowerLottery: His BodySurf Innate Technique is already useful by itself, but it's greatest advantage is that it gives Kenjaku the entirely unique ability to [[RevivalLoophole break Binding Vows without suffering a single negative repercussion]], which is thought to be impossible by most sorcerers and has made it ''very'' easy for him to manipulate people . He specifically sought out Geto's body to acquire Cursed Spirit Manipulation, a Cursed Technique with the same level of potential as Gojo's [[StoryBreakerPower Infinity]], and ''then'' he reveals that he can use the Techniques of the Curses he eats for a single use on top of having a GravityMaster Technique up his sleeve.

* WeUsedToBeFriends: Was this with Gojo, taking on many missions together during their time at the college. Gojo leaving Geto in the dust with his power, as well as Geto's own slipping sense of self lead to him eventually defecting as a sorcerer. Even after killing Geto following his defeat by Yuta, Gojo still calls him his one and only best friend.

* EvenEvilHasLovedOnes: [[DownplayedTrope Downplayed]]. While he considers the Death Paintings [[AbusiveParents nothing but failed experiments]], [[spoiler:he's implied to hold some genuine affection for Yuji, telling the boy that he "expects great things" from him, and at one point [[SincerityMode genuinely thanking Sasaki for being friends with his son]]]].

* EvilerThanThou: [[spoiler:It's quickly made clear during his appearance the end of the Shibuya Incident that he's ''far'' more dangerous then his Disaster Curse minions, something Mahito [[DevourTheDragon finds out the hard way]]. WordOfGod also stated in the Databook that Kenjaku was confident that he and his army of Curses could have taken on all of the Disaster Curses at once if it became necessary]].

** Another perk of acquiring Geto's body, since Geto could take out anyone short of a Special-Grade sorcerer or Toji with his bare hands. In Shibuya he [[NoSell snaps Miwa's katana in half with his palm]] after catching her surprise attack and briefly manhandles Choso in a brawl.

* OlderIsBetter: He has a number of ancient curses who are still rather potent in spite of scientific progress curbing the fears that spawned them. These include the Smallpox Curse, which despite the disease associated with it being all but eradicated by modern medicine still has immense amounts of power to see it through battles, or the Catfish Curse spawned from the old-timey belief that a giant underground catfish was the cause of earthquakes, which grants him the power to confuse and warp the perceptions of his enemies.

* WalkingSpoiler: He's difficult to talk about without revealing that he's actually an impostor.

* PetTheDog: Despite how ruthless he is, he actually took in and helped raise Nanako and Mimiko after utterly slaughtering the village that was persecuting them. Years later, the two are still deeply loyal to him because of it.

* StepfordSmiler: Geto almost constantly sports a cheerful grin on his face during his days as a curse user to match his lighthearted and unhinged new persona. He admits to Gojo before his death that he's actually extremely depressed, stating that he "can't smile from the bottom of his heart in a world like this." It's implied that his last smile in response to Gojo's hidden words was a genuine one.

* TragicBromance: With Gojo. The two were best friends as students until Riko Amanai's death and the countless cycle of exorcism all for non-sorcerers like the ones who applauded Riko's death led Geto to lose his faith, vowing to kill all non-sorcerers to create a world of only sorcerers without curses. Geto's betrayal greatly both angered and saddened Gojo. This eventually led to Gojo killing Geto during the Night Parade of a Hundred Demons, with Gojo still calling him his one and only best friend after doing so. Geto's death allowed for [[BigBad Kenjaku]] to take over his body, a turn of events that lead to Gojo getting sealed in the Shibuya Incident.

* ArchnemesisDad: Choso completely loathes him for the abuse he put the Death Painting's mother through. He's later also implied to be Yuji's archnemesis ''mom'', having birthed him in one of his previous bodies seemingly for the purpose of turning him into a host for Sukuna.

* AsskickingEqualsAuthority: After becoming ungodly powerful by stacking his deck with cards like Cursed Spirit Manipulation and a host of {{Ancient Evil}}s at his beck and call, with even more Cursed Techniques than that at his disposal, he effortlessly upsets the power balance of the Jujutsu Association and takes over the entire thing in a matter of days after the Shibuya Incident.
* TheBadGuyWins: He comes out of the The Shibuya Incident as the only true victor, which is saying a lot. Gojo gets locked up indefinitely in the Prison Realm, much of Tokyo is left oversaturated with Cursed Energy, allowing Cursed Spirits to run wild, and the Jujutsu council folds neatly into his grasp mere days after the Incident occured, allowing Kenjaku to focus his full attention on his next scheme – the Culling Game..
* BarrierWarrior: He is noted to be the second-strongest sorcerer in the world when it comes to creating and utilizing barrier techniques, a claim made by the number one strongest himself, Master Tengen. He is able to bend Tengen's enourmous barrier to produce whatever scenario he wants, including a cinema playing out bits and pieces of his endgoal on screen while explaining his motives to Choso.

* TheChessmaster: Upon revealing the extent of his plans to Yuki Tsukumo, the insane amount of machinations required to pull it off becomes apparent, having been working on his schemes for over 1000 years. He has been making binding vows with hundreds of sorcerers over the years to trap them within Cursed Objects that he has fed to 500 people throughout Japan. Subsequently he sought out 500 people who possess latent Cursed Techniques but no Cursed Energy to use them, marking both groups with his energy. He then awakens the potential of all 1000 people, creating Cursed Vessels and Curse Users to create a sizeable enough pool for his grand sacrificial ritual, the Culling Game - an undertaking which requires taking over swaths of Japanese cities and creating multiple huge barriers to serve as arenas for the player. After the opening phase of the Game is finished, it is revealed as he has also been meeting with world leaders of superpower nations such as China and the United States, involving their governments within his plot by manipulating them into attempting to capture sorcerers for military or energy purposes and be potential cannon fodder Points for the Players. And that is merely the current extent of his overall plan.

* ControlFreak: Confesses that his manipulative tendencies were ultimately holding back the progress of his experiments. To remedy this, he creates a dangerous and unstable new paradigm so he can learn from "chaos".

* DevourTheDragon: He does this to Mahito at the end of the Shibuya Incident, showing up after he's severly weakened by his fight with Yuji and Todo and absorbing him with Cursed Spirit Manipulation to take Idle Transfiguration for himself . Kenjaku states he would've liked to take Jogo's Technique too, but brushes off the Earth Curse's death as "It is what it is".
* DreamWeaver: He is capable of entering people's dreams and interacting with them, doing so by creating a barrier within the space between reality and dream. He does this when he escorts civilians out of the Culling Game battlegrounds, having them sleepwalk out of the barriers and then wake up thinking their interaction with Kenjaku was AllJustADream.
* EvenEvilHasLovedOnes: [[DownplayedTrope Downplayed]]. While he considers the Death Paintings [[AbusiveParents nothing but failed experiments]], he's implied to hold some genuine affection for Yuji, telling the boy that he "expects great things" from him, and at one point [[SincerityMode genuinely thanking Sasaki for being friends with his son]].
* EvilerThanThou: It's quickly made clear during his appearance the end of the Shibuya Incident that he's ''far'' more dangerous then his Disaster Curse minions, something Mahito [[DevourTheDragon finds out the hard way]]. WordOfGod also stated in the Databook that Kenjaku was confident that he and his army of Curses could have taken on all of the Disaster Curses at once if it became necessary.
* EvilKnockoff: His plan involves creating hundreds of lesser versions of the Sukuna/Yuji composite by forcing dozens of test subjects to ingest Cursed Objects, although he's also revealed to have been the one who purposefully "bred" Yuji to become Sukuna's vessel in the first place.
* EvilMatriarch: A very interesting variation; it is revealed that Yuji Itadori's mother was a previous vessel of his, giving him a very twisted relation to the main protagonist.

* FauxAffablyEvil: Kenjaku is rarely ever angry, spiteful or cold, and keeps up a relaxed persona around allies and enemies alike. He expresses admiration for enemy sorcerers during combat, and even rambles at Yuji about the specifics of his technique, giving the impression of a playful MadScientist finally able to put all his wildest theories to the test. Despite having manipulated the Disaster Curses for his goals and planning to dispose of them in the end, he's nothing but courteous, patient, and amicable around them, even relaxing and playing games with them from time to time. Then it's revealed that he wants to merge all non-Sorcerers into eternal agony for his own amusement, revealing his true colors.
* {{Foreshadowing}}: He has strange markings on his forehead. These are stitches, indicating the brain transplant that was used to hijack Geto's body. A somewhat recursive example occurs after and before this is revealed, as his previous identity of Noritoshi Kamo was initially shown with his forehead heavily obscured by shadows, only for Choso to remember a clearer image of him with the same tell-tale stitches across his forehead when he meets his current host, showing that they're the same person. Anybody else with [[MarkOfTheBeast such markings]] is all but certainly a previous host of his, including Yuji's mother.

* GenderBender: Kenjaku's current body is male but one of the more recent ones was female. Specifically, ''Yuji's mother''.
* GodzillaThreshold: Uses his current body's strengths to hide his true abilities so as to use them to advantage if what he's stolen fails him. Choso manages to force him to briefly use them to block an inescapable lethal attack, which greatly displeases Kenjaku.

* GravityMaster: One of the Cursed Spirits in his collection is a four-armed anthropomorphic elephant (seemingly modelled on the Hindu deity [[https://en.m.wikipedia.org/wiki/Ganesha Ganesha]]) with the power to levitate objects. He first uses it to makes fourty-five members of U.S Special Forces float into the air before slamming them into the ground at lethal speed while demonstrating the threat of Jujutsu to the White House cabinet.
* HorrifyingTheHorror: During his and Mahito's final meeting when the former absorbs the latter, the Curse is utterly terrified of the sheer DissonantSerenity Kenjaku possesses, and tried to flee.

* KickTheSonOfABitch: During the Shibuya Incident, he mercilessly sends the Disaster Curses to their deaths, and personally betrays and devours Mahito.

** Chapter 160 however, shows him personally escorting civilians out of the radius of the chosen sites for his Culling Game, giving them the choice to leave the site of what will soon become a killing field. Despite it being hinted that he's doing it primarily for PragmaticVillainy, it still shows a marked contrast against both [[EvilIsPetty Sukuna]] and [[{{Sadist}} Mahito]], the prior antagonists of the story, both of whom would have gleefully committed mass slaughter of human life for little to no reasoning, showing that whilst he might not care much for the lives lost during his plans, [[{{ALighterShadeOfBlack}} he won't go out of his way to cause unnecessary deaths either]]. As it turns out, this PragmaticVillainy is actually just because he plans to merge these humans into a massive abomination of Cursed Energy-- it simply doesn't serve a purpose for them to die ''there'' rather than later.

* LockedOutOfTheLoop: He scoffs when Gojo insinuates that [[TheAce Yuta Okkotsu]] is as much of a threat to his plans as he is, stating that only he's been able to accomplish so much because he had [[SuperWeaponAverageJoe Rika]] to fight his battles for him. Implying that he's unaware of [[InTheBlood where]] Yuta's power ''really'' comes from.

* LukeIAmYourFather: Is actually in a way Yuji's ''mother'', as she was a prior host of his.
* ManOfKryptonite: Kenjaku is this for Master Tengen, as Tengen is now more Curse than man because he failed to fuse with a Star Plasma Vessel in time, it’s become possible for him to be seized by Cursed Spirit Manipulation. Tengen fears that Kenjaku might absorb him the moment they meet one another.

* MeaningfulName: "Kenjaku" is the name of a mystical rope in Buddhist mythology used by the goddess of mercy Kannon to drag the souls of men onto the path of enlightenment, just as Kenjaku himself pulls sorcerers into conflict in the hopes of forcing them to grow stronger and “evolve”.

* OneManArmy: Can slaughter soldiers ''en masse'' with his GravityMaster powers, and takes over Jujutsu society in a short timespan singlehandedly.
* OOCIsSeriousBusiness: The only time he drops his [[PerpetualSmiler constant]] [[FauxAffablyEvil smile]] is when [[{{Archenemy}} Yuki Tsukumo]] appears at the climax of the Shibuya Incident.

* PetTheDog: Chapter 160 shows him personally escorting civilians caught within the Culling Game out of the danger zones while they are dreaming, giving each person one chance to escape the battlefields rather than just leaving them. Given his personality, he likely did so for pragmatic reasons involving his plan rather than actual benevolence, but his actions still uncharacteristically prevented the loss of innocent life. He also [[SincerityMode sincerely thanks]] Sasaki, Yuji's schoolfriend that he saved in the first chapter from the Curses, for getting along with his son, which has absolutely no benefit to him, but indicates that he was aware of Yuji and his lifestyle even before he consumed Sukuna's finger.

* RunningBothSides: As he explains to Noritoshi, with his BodySurf and heaps of connections gathered over the centuries it should come as no surprise to the heroes that Kenjaku already had a vice grip on Jujutsu Headquarters, to the point where he could waltz in, eliminate the higherups that voted for "Suguru Geto"'s execution order and made Yuta take Yuji's executioner order up again, then plonk himself in as Head of the Kamo Household through his old identity as Noritoshi Kamo to grasp power over the most powerful of the Conservative factions in the Association. Meaning the entire Association has been dancing in the palm of their greatest enemy's hand for centuries.
* SimpleYetAwesome: Appears to see Maximum: Uzumaki as this. Uzumaki combines all currently absorbed Cursed Spirits into one and throws the result at the opponent. Geto says he initially found it unexciting, due to how it gets rid of the main advantage of Cursed Spirit Manipulation. He reveals, however, that using it on any curses that are Semi-Grade 1 or higher allows the user to steal that Curse's technique for a single use, allowing him to access Mahito's Idle Transfiguration to complete the preparations for the Culling Game.

* TimeAbyss: Very likely the oldest being alive. One of the sorcerers he resurrected for the Culling Game came from the Yayoi period, suggesting the possibility that Kenjaku was active as far back as 300 ''BC.''.

* YouHaveOutlivedYourUsefulness: He had his eye on at least two of the Disaster Curses he was working with, and given how Dagon and Hanami were friends with his targets, he was probably planning to get rid of them, too.

Along with the technique he used to transplant his brain and being a powerful Barrier Technique user, he has access to Geto's "Cursed Spirit Manipulation", which allows him to absorb and control naturally occurring curses and use them for combat. His own technique also allows him to void Binding Vows he concludes with anyone by simply escaping into another body, allowing him to weave plans across centuries and generations with next to no personal cost.

* AncientEvil: He qualifies as one himself, being at least a millenium old and having spent the better part of his existence scheming to see humanity achieve the next step in its evolution, consequences be damned. He also has a menagerie of these, in the form of ancient Cursed Spirits absorbed through Geto's Technique:
** The Smallpox Deity is an ancient Curse from the days when smallpox was still a deadly and contagious diseases capable of killing scores of people, still possessed of a deadly and unique Domain Expansion despite time and technology blunting the fears which spawned it.
** The Earthquake Catfish is a Curse spawned from the folk belief in a giant catfish coiling underground being the source of earthquakes. When unleashed, it can alter the perceptions of its target to make them believe they are falling in an endless loop, knocking them off their feet and keeping them pinned down.
** Kurourushi is a Special Grade Curse spawned from humanity's hatred for cockroaches. It is perpetually starving for another meal, as its Technique, Parthenogenesis, allows it to spawn an infinite number of reinforced cockroaches so long as they find more food, easily allowing it to become TheSwarm.
** The Elephant God is a massive Curse with [[GravityMaster powers over gravity]], styled in the image of the Hindu god Ganesha, capable of easily manipulating the gravities of dozens of people to devastating effect.
* AnimalMotifs: Centipedes, which are seen as impure in Japanese folklore, and have legends about them taking over [[GrandTheftMe the corpses of the dead]] as a corruption of immortality of the flesh, as opposed to the Buddhist immortality of the soul[=/=]Atman. Centipedes are also frequently used as the symbol for [[https://en.wikipedia.org/wiki/Gu_(poison) Gu[=/=]Kodoku rituals]] which his Culling Game closely resembles in having the Players kill one another to survive in an inclosed space in hopes that the last player surviving will revolutionize Cursed Energy. Furthermore, most of his {{Familiar}}s take the form of centipedes, either as swarms or a single gigantic one to be used as a ramming projectile.

* AsskickingEqualsAuthority: After becoming ungodly powerful by stacking his deck with cards like Cursed Spirit Manipulation, Idle Transfiguration and presumably even more Cursed Techniques than that at his disposal, he effortlessly upsets the power balance of the Jujutsu Association and takes over the entire thing in a matter of days after the Shibuya Incident.

* BarrierWarrior: He is noted to be the second-strongest sorcerer in the world when it comes to creating and utilizing barrier techniques, a claim made by the number one strongest himself, Master Tengen.

* BrainTransplant: His personal technique lets him access the bodies of others by putting his brain in their skull. How exactly this is done is not clear, but it's probably [[BodyHorror best left to the imagination]].
* TheChessmaster: Upon revealing the extent of his plans to Yuki Tsukumo, the insane amount of machinations required to pull it off becomes apparent, having been working on his schemes for over 1000 years. He has been making binding vows with hundreds of sorcerers over the years to trap them within Cursed Objects that he has fed to 500 people throughout Japan. Subsequently he sought out 500 people who possess latent Cursed Techniques but no Cursed Energy to use them, marking both groups with his energy. He then awakens the potential of all 1000 people, creating Cursed Vessels and Curse Users to create a sizeable enough pool for his grand sacrificial ritual, the Culling Game - an undertaking which requires taking over swaths of Japanese cities and creating multiple huge barriers to serve as arenas for the player. After the opening phase of the Game is finished, it is revealed as he has also been meeting with world leaders of superpower nations such as China and the United States, involving their governments within his plot by manipulating them into attempting to capture sorcerers for military or energy purposes. And that is merely the current extent of his overall plan.

* GravityMaster: One of the Cursed Spirits in his collection is a four-armed anthropomorphic elephant (seemingly modelled on the Hindu deity [[https://en.m.wikipedia.org/wiki/Ganesha Ganesha]]) with the power to levitate objects. He first uses it to makes fourty-five members of U.S Special Forces float into the air before slamming them into the ground at lethal speed while demonstrating the threat of Jujutsu to the White House cabinet.

* LightningBruiser: Another perk of acquiring Geto's body, since Geto could take out anyone short of a Special-Grade sorcerer or Toji with his bare hands. In Shibuya he [[NoSell snaps Miwa's katana in half with his palm]] after catching her surprise attack and briefly manhandles Choso in a brawl.

* SimpleYetAwesome: Appears to see Maximum: Uzumaki as this. Uzumaki combines all currently absorbed Cursed Spirits into one and throws the result at the opponent. Geto says he initially found it unexciting, due to how it gets rid of the main advantage of Cursed Spirit Manipulation. He reveals, however, that using it on any curses that are Semi-Grade 1 or higher allows the user to permanently steal that Curse's Techniques, and later he hypothesizes to Choso that Uzumaki might be able to consume the combined form of all Japan's Cursed Energy.
* SuperpowerLottery: His BodySurf Innate Technique is already useful by itself, but it's greatest advantage is that it gives Kenjaku the entirely unique ability to [[RevivalLoophole break Binding Vows without suffering a single negative repercussion]], which is thought to be impossible by most sorcerers and has made it ''very'' easy for him to manipulate people . He specifically sought out Geto's body to acquire Cursed Spirit Manipulation, A Cursed Technique with the same level of potential as Gojo's [[StoryBreakerPower Infinity]], and ''then'' he acquires Mahito's Idle Transfiguration on top of that after devouring him at the end of the Shibuya Incident.

* PetTheDog: Despite how ruthless he is, he actually took in and helped raise Nanako and Mimiko [[spoiler:after utterly slaughtering the village that was persecuting them]]. Years later, the two are still deeply loyal to him because of it.

* StepfordSmiler: Geto almost constantly sports a cheerful grin on his face during his days as a curse user to match his lighthearted and unhinged new persona. [[spoiler:He admits to Gojo before his death that he's actually extremely depressed, stating that he "can't smile from the bottom of his heart in a world like this." It's implied that his last smile in response to Gojo's hidden words was a genuine one.]]

* TragicBromance: With Gojo. The two were best friends as students until Riko Amanai's death and the countless cycle of exorcism all for non-sorcerers like the ones who applauded Riko's death led Geto to lose his faith, vowing to kill all non-sorcerers to create a world of only sorcerers without curses. Geto's betrayal greatly both angered and saddened Gojo. This eventually led to Gojo killing Geto during the Night Parade of a Hundred Demons, with Gojo still calling him his one and only best friend after doing so. Geto's death allowed for [[BigBad Kenjaku]] to take over his body, a turn of events that lead to [[spoiler:Gojo getting sealed in the Shibuya Incident.]]

* ArchnemesisDad: Choso completely loathes him for the abuse he put the Death Painting's mother through. He's later also implied to be [[spoiler:Yuji's archnemesis ''mom'', having birthed him in one of his previous bodies seemingly for the purpose of turning him into a host for Sukuna]].

* AsskickingEqualsAuthority: [[spoiler: After becoming ungodly powerful by stacking his deck with cards like Cursed Spirit Manipulation, Idle Transfiguration and presumably even more Cursed Techniques than that at his disposal, he effortlessly upsets the power balance of the Jujutsu Association and takes over the entire thing in a matter of days after the Shibuya Incident.]]
* TheBadGuyWins: [[spoiler: He comes out of the The Shibuya Incident as the only true victor, which is saying a lot. Gojo gets locked up indefinitely in the Prison Realm, much of Tokyo is left oversaturated with Cursed Energy, allowing Cursed Spirits to run wild, and the Jujutsu council folds neatly into his grasp mere days after the Incident occured, allowing Kenjaku to focus his full attention on his next scheme – the Culling Game..]]
* BarrierWarrior: He is noted to be the second-strongest sorcerer in the world when it comes to creating and utilizing barrier techniques, [[spoiler:a claim made by the number one strongest himself, Master Tengen.]]

* TheChessmaster: [[spoiler:Upon revealing the extent of his plans to Yuki Tsukumo, the insane amount of machinations required to pull it off becomes apparent, having been working on his schemes for over 1000 years. He has been making binding vows with hundreds of sorcerers over the years to trap them within Cursed Objects that he has fed to 500 people throughout Japan. Subsequently he sought out 500 people who possess latent Cursed Techniques but no Cursed Energy to use them, marking both groups with his energy. He then awakens the potential of all 1000 people, creating Cursed Vessels and Curse Users to create a sizeable enough pool for his grand sacrificial ritual, the Culling Game - an undertaking which requires taking over swaths of Japanese cities and creating multiple huge barriers to serve as arenas for the player. After the opening phase of the Game is finished, it is revealed as he has also been meeting with world leaders of superpower nations such as China and the United States, involving their governments within his plot by manipulating them into attempting to capture sorcerers for military or energy purposes. And that is merely the current extent of his overall plan.]]

* ControlFreak: Confesses that his manipulative tendencies were ultimately holding back the progress of his experiments. To remedy this, he [[spoiler:creates a dangerous and unstable new paradigm so he can learn from "chaos"]].

* DevourTheDragon: [[spoiler:He does this to Mahito at the end of the Shibuya Incident, showing up after he's severly weakened by his fight with Yuji and Todo and absorbing him with Cursed Spirit Manipulation to take Idle Transfiguration for himself . Kenjaku states he would've liked to take Jogo's Technique too, but brushes off the Earth Curse's death as "It is what it is"]].
* DreamWeaver: [[spoiler:He is capable of entering people's dreams and interacting with them, doing so by creating a barrier within the space between reality and dream. He does this when he escorts civilians out of the Culling Game battlegrounds, having them sleepwalk out of the barriers and then wake up thinking their interaction with Kenjaku was AllJustADream.]]
* EvenEvilHasLovedOnes: [[DownplayedTrope Downplayed]]. While he considers the Death Paintings [[AbusiveParents nothing but failed experiments]], [[spoiler:he's implied to hold some genuine affection for Yuji, telling the boy that he "expects great things" from him, and at one point [[SincerityMode genuinely thanking Sasaki for being friends with his son]]]].
* EvilerThanThou: [[spoiler:It's quickly made clear during his appearance the end of the Shibuya Incident that he's ''far'' more dangerous then his Disaster Curse minions, something Mahito [[DevourTheDragon finds out the hard way]]. WordOfGod also stated in the Databook that Kenjaku was confident that he and his army of Curses could have taken on all of the Disaster Curses at once if it became necessary]].
* EvilKnockoff: His plan involves creating hundreds of lesser versions of the Sukuna/Yuji composite by forcing dozens of test subjects to ingest Cursed Objects, [[spoiler:although he's also revealed to have been the one who purposefully "bred" Yuji to become Sukuna's vessel in the first place.]]
* EvilMatriarch: A very interesting variation; [[spoiler:it is revealed that Yuji Itadori's mother was a previous vessel of his, giving him a very twisted relation to the main protagonist.]]

* FauxAffablyEvil: Kenjaku is rarely ever angry, spiteful or cold, and keeps up a relaxed persona around allies and enemies alike. He expresses admiration for enemy sorcerers during combat, and even rambles at Yuji about the specifics of his technique, giving the impression of a playful MadScientist finally able to put all his wildest theories to the test. Despite having [[spoiler:manipulated the Disaster Curses for his goals and planning to dispose of them in the end,]] he's nothing but courteous, patient, and amicable around them, even relaxing and playing games with them from time to time. Then it's revealed that [[spoiler: he wants to merge all non-Sorcerers into eternal agony for his own amusement]], revealing his true colors.
* {{Foreshadowing}}: He has strange markings on his forehead. These are stitches, indicating the brain transplant that was used to hijack Geto's body. A somewhat recursive example occurs after and before this is revealed, as his previous identity of Noritoshi Kamo was initially shown with his forehead heavily obscured by shadows, only for Choso to remember a clearer image of him with the same tell-tale stitches across his forehead when he meets his current host, showing that they're the same person. Anybody else with [[MarkOfTheBeast such markings]] is all but certainly a previous host of his, [[spoiler:including Yuji's mother]].

* GenderBender: Kenjaku's current body is male but one of the more recent ones was female. [[spoiler:Specifically, ''Yuji's mother''.]]

* GravityMaster: One of the Cursed Spirits in his collection is a four-armed anthropomorphic elephant (seemingly modelled on the Hindu deity [[https://en.m.wikipedia.org/wiki/Ganesha Ganesha]]) with the power to levitate objects. [[spoiler: He first uses it to makes fourty-five members of U.S Special Forces float into the air before slamming them into the ground at lethal speed while demonstrating the threat of Jujutsu to the White House cabinet]].
* HorrifyingTheHorror: [[spoiler:During his and Mahito's final meeting when the former absorbs the latter, the Curse is utterly terrified of the sheer DissonantSerenity Kenjaku possesses, and tried to flee.]]

* KickTheSonOfABitch: [[spoiler:During the Shibuya Incident, he mercilessly sends the Disaster Curses to their deaths, and personally betrays and devours Mahito.]]

** Chapter 160 however, shows him personally escorting civilians out of the radius of the chosen sites for his Culling Game, giving them the choice to leave the site of what will soon become a killing field. Despite it being hinted that he's doing it primarily for PragmaticVillainy, it still shows a marked contrast against both [[EvilIsPetty Sukuna]] and [[{{Sadist}} Mahito]], the prior antagonists of the story, both of whom would have gleefully committed mass slaughter of human life for little to no reasoning, showing that whilst he might not care much for the lives lost during his plans, [[{{ALighterShadeOfBlack}} he won't go out of his way to cause unnecessary deaths either]]. [[spoiler: As it turns out, this PragmaticVillainy is actually just because he plans to merge these humans into a massive abomination of Cursed Energy-- it simply doesn't serve a purpose for them to die ''there'' rather than later]].

* LockedOutOfTheLoop: He scoffs when Gojo insinuates that [[TheAce Yuta Okkotsu]] is as much of a threat to his plans as he is, stating that only he's been able to accomplish so much because he had [[SuperWeaponAverageJoe Rika]] to fight his battles for him. [[spoiler:Implying that he's unaware of [[InTheBlood where]] Yuta's power ''really'' comes from]].
* LoopholeAbuse: He is masterful at finding clever workarounds to bypass the restrictions within the practice of Jujutsu, such as [[spoiler:his circumvention of the Prison Realm's conditions to capture Gojo or the hundreds of Binding Vows created for the Culling Game that could be voided by hopping between vessels. This includes having set up the Game so that he himself doesn't have to be the Game Master, ensuring it will go on even if something was to happen to him.]]
* LukeIAmYourFather: [[spoiler:Is actually in a way Yuji's ''mother'', as she was a prior host of his.]]
* ManOfKryptonite: Kenjaku is this for Master Tengen, [[spoiler: as Tengen is now more Curse than man because he failed to fuse with a Star Plasma Vessel in time, it’s become possible for him to be seized by Cursed Spirit Manipulation. Tengen fears that Kenjaku might absorb him the moment they meet one another.]]

* OneManArmy: Can slaughter soldiers ''en masse'' with his GravityMaster powers, and [[spoiler: takes over Jujutsu society in a short timespan singlehandedly]].
* OOCIsSeriousBusiness: The only time he drops his [[PerpetualSmiler constant]] [[FauxAffablyEvil smile]] is when [[spoiler:[[{{Archenemy}} Yuki Tsukumo]] appears at the climax of the Shibuya Incident]].

* PetTheDog: [[spoiler:Chapter 160 shows him personally escorting civilians caught within the Culling Game out of the danger zones while they are dreaming, giving each person one chance to escape the battlefields rather than just leaving them. Given his personality, he likely did so for pragmatic reasons involving his plan rather than actual benevolence, but his actions still uncharacteristically prevented the loss of innocent life. He also [[SincerityMode sincerely thanks]] Sasaki, Yuji's schoolfriend that he saved in the first chapter from the Curses, for getting along with his son, which has absolutely no benefit to him, but indicates that he was aware of Yuji and his lifestyle even before he consumed Sukuna's finger]].

* RunningBothSides: [[spoiler:As he explains to Noritoshi, with his BodySurf and heaps of connections gathered over the centuries it should come as no surprise to the heroes that Kenjaku already had a vice grip on Jujutsu Headquarters, to the point where he could waltz in, eliminate the higherups that voted for "Suguru Geto"'s execution order and made Yuta take Yuji's executioner order up again, then plonk himself in as Head of the Kamo Household through his old identity as Noritoshi Kamo to grasp power over the most powerful of the Conservative factions in the Association. Meaning the entire Association has been dancing in the palm of their greatest enemy's hand for centuries.]]

* TimeAbyss: Very likely the oldest being alive. [[spoiler:One of the sorcerers he resurrected for the Culling Game came from the Yayoi period, suggesting the possibility that Kenjaku was active as far back as 300 ''BC.'']].

* YouHaveOutlivedYourUsefulness: [[spoiler:He had his eye on at least two of the Disaster Curses he was working with, and given how Dagon and Hanami were friends with his targets, he was probably planning to get rid of them, too.]]

* PetTheDog: Despite how ruthless he is, he actually took in and helped raise Nanako and Mimiko after utterly slaughtering the village that was persecuting them. Years later, the two are still deeply loyal to him because of it.

* StepfordSmiler: Geto almost constantly sports a cheerful grin on his face during his days as a curse user to match his lighthearted and unhinged new persona. He admits to Gojo before his death that he's actually extremely depressed, stating that he "can't smile from the bottom of his heart in a world like this." It's implied that his last smile in response to Gojo's hidden words was a genuine one.

* TragicBromance: With Gojo. The two were best friends as students until Riko Amanai's death and the countless cycle of exorcism all for non-sorcerers like the ones who applauded Riko's death led Geto to lose his faith, vowing to kill all non-sorcerers to create a world of only sorcerers without curses. Geto's betrayal greatly both angered and saddened Gojo. This eventually led to Gojo killing Geto during the Night Parade of a Hundred Demons, with Gojo still calling him his one and only best friend after doing so. Geto's death allowed for [[BigBad Kenjaku]] to take over his body, a turn of events that lead to Gojo getting sealed in the Shibuya Incident.

* AffablyEvil: Kenjaku is rarely ever angry, spiteful or cold, and keeps up a relaxed persona around allies and enemies alike. He expresses admiration for enemy sorcerers during combat, and even rambles at Yuji about the specifics of his technique, giving the impression of a scientist indulging in his field of study. Despite having manipulated the Disaster Curses for his goals and planning to dispose of them in the end, he's nothing but courteous, patient, and amicable around them, even relaxing and playing games with them from time to time.

** The Earthquake Catfish is the Curse spawned from the folk belief in a giant catfish coiling underground being the source of earthquakes. When unleashed, it can alter the perceptions of its target to make them believe they are falling in an endless loop, knocking them off their feet and keeping them pinned down.

* ArchnemesisDad: Choso completely loathes him for the abuse he put the Death Painting's mother through. He's later also implied to be Yuji's archnemesis ''mom'', having birthed him in one of his previous bodies seemingly for the purpose of turning him into a host for Sukuna.

* AsskickingEqualsAuthority: After becoming ungodly powerful by stacking his deck with cards like Cursed Spirit Manipulation, Idle Transfiguration and presumably even more Cursed Techniques than that at his disposal, he effortlessly upsets the power balance of the Jujutsu Association and takes over the entire thing in a matter of days after the Shibuya Incident.
* TheBadGuyWins: He comes out of the The Shibuya Incident as the only true victor, which is saying a lot. Gojo gets locked up indefinitely in the Prison Realm, much of Tokyo is left oversaturated with Cursed Energy, allowing Cursed Spirits to run wild, and the Jujutsu council folds neatly into his grasp mere days after the Incident occured, allowing Kenjaku to focus his full attention on his next scheme – the Culling Game.
* BarrierWarrior: He is noted to be the second-strongest sorcerer in the world when it comes to creating and utilizing barrier techniques, a claim made by the number one strongest himself, Master Tengen.

* TheChessmaster: Upon revealing the extent of his plans to Yuki Tsukumo, the insane amount of machinations required to pull it off becomes apparent, having been working on his schemes for over 1000 years. He has been making binding vows with hundreds of sorcerers over the years to trap them within Cursed Objects that he has fed to 500 people throughout Japan. Subsequently he sought out 500 people who possess latent Cursed Techniques but no Cursed Energy to use them, marking both groups with his energy. He then awakens the potential of all 1000 people, creating Cursed Vessels and Curse Users to create a sizeable enough pool for his grand sacrificial ritual, the Culling Game - an undertaking which requires taking over swaths of Japanese cities and creating multiple huge barriers to serve as arenas for the player. After the opening phase of the Game is finished, it is revealed as he has also been meeting with world leaders of superpower nations such as China and the United States, involving their governments within his plot by manipulating them into attempting to capture sorcerers for military or energy purposes. And that is merely the current extent of his overall plan.

* ComboPlatterPowers[[=/=]]ConfusionFu: Kenjaku explains to Yuji that this is one of the biggest advantages of Cursed Spirit Manipulation; He has no lack of powerful Cursed Spirits at his disposal due to being a purveyor of {{Ancient Evil}}s and can use them in tandem. The combo of Cursed Spirit techniques he hits Yuji with in Shibuya borders on YouCannotGraspTheTrueForm, getting covered in damaging blood and swarmed by carnivorous centipedes, while simultaneously falling down a repeating sinkhole until he's eventually slammed into the ground with great force.
* ControlFreak: Confesses that his manipulative tendencies were ultimately holding back the progress of his experiments. To remedy this, he creates a dangerous and unstable new paradigm so he can learn from "chaos".

* DevourTheDragon: He does this to Mahito at the end of the Shibuya Incident, showing up after he's severly weakened by his fight with Yuji and Todo and absorbing him with Cursed Spirit Manipulation to take Idle Transfiguration for himself . Kenjaku states he would've liked to take Jogo's Technique too, but brushes off the Earth Curse's death as "It is what it is".
* DreamWeaver: He is capable of entering people's dreams and interacting with them, doing so by creating a barrier within the space between reality and dream. He does this when he escorts civilians out of the Culling Game battlegrounds, having them sleepwalk out of the barriers and then wake up thinking their interaction with Kenjaku was AllJustADream.
* EvenEvilHasLovedOnes: [[DownplayedTrope Downplayed]]. While he considers the Death Paintings [[AbusiveParents nothing but failed experiments]], he's implied to hold some genuine affection for Yuji, telling the boy that he "expects great things" from him, and at one point [[SincerityMode genuinely thanking Sasaki for being friends with his son]].
* EvilerThanThou: It's quickly made clear during his appearance the end of the Shibuya Incident that he's ''far'' more dangerous then his Disaster Curse minions, something Mahito [[DevourTheDragon finds out the hard way]]. WordOfGod also stated in the Databook that Kenjaku was confident that he and his army of Curses could have taken on all of the Disaster Curses at once if it became necessary.
* EvilKnockoff: His plan involves creating hundreds of lesser versions of the Sukuna/Yuji composite by forcing dozens of test subjects to ingest Cursed Objects, although he's also revealed to have been the one who purposefully "bred" Yuji to become Sukuna's vessel in the first place.
* EvilMatriarch: A very interesting variation; it is revealed that Yuji Itadori's mother was a previous vessel of his, giving him a very twisted relation to the main protagonist.

* {{Foreshadowing}}: He has strange markings on his forehead. These are stitches, indicating the brain transplant that was used to hijack Geto's body. A somewhat recursive example occurs after and before this is revealed, as his previous identity of Noritoshi Kamo was initially shown with his forehead heavily obscured by shadows, only for Choso to remember a clearer image of him with the same tell-tale stitches across his forehead when he meets his current host, showing that they're the same person. Anybody else with [[MarkOfTheBeast such markings]] is all but certainly a previous host of his, including Yuji's mother.
* GenderBender: Kenjaku's current body is male but one of the more recent ones was female. Specifically, ''Yuji's mother''.

* GravityMaster: One of the Cursed Spirits in his collection is a four-armed anthropomorphic elephant (seemingly modelled on the Hindu deity [[https://en.m.wikipedia.org/wiki/Ganesha Ganesha]]) with the power to levitate objects. He first uses it to makes fourty-five members of U.S Special Forces float into the air before slamming them into the ground at lethal speed while demonstrating the threat of Jujutsu to the White House cabinet.
* HorrifyingTheHorror: During his and Mahito's final meeting when the former absorbs the latter, the Disaster Curse is utterly terrified of the sheer DissonantSerenity Kenjaku possesses, and tried to flee.

* HumanShield: He can partially summon Curses to act as crude shields for his vital areas.

* KickTheSonOfABitch: During the Shibuya Incident, he mercilessly sends the Disaster Curses to their deaths, and personally betrays and devours Mahito.

** Chapter 160 however, shows him personally escorting civilians out of the radius of the chosen sites for his Culling Game, giving them the choice to leave the site of what will soon become a killing field. Despite it being hinted that he's doing it primarily for PragmaticVillainy, it still shows a marked contrast against both [[EvilIsPetty Sukuna]] and [[{{Sadist}} Mahito]], the prior antagonists of the story, both of whom would have gleefully committed mass slaughter of human life for little to no reasoning, showing that whilst he might not care much for the lives lost during his plans, [[{{ALighterShadeOfBlack}} he won't go out of his way to cause unnecessary deaths either]].

* LockedOutOfTheLoop: He scoffs when Gojo insinuates that [[TheAce Yuta Okkotsu]] is as much of a threat to his plans as he is, stating that only he's been able to accomplish so much because he had [[SuperWeaponAverageJoe Rika]] to fight his battles for him. Implying that he's unaware of [[InTheBlood where]] Yuta's power ''really'' comes from.
* LoopholeAbuse: He is masterful at finding clever workarounds to bypass the restrictions within the practice of Jujutsu, such as his circumvention of the Prison Realm's conditions to capture Gojo or the hundreds of Binding Vows created for the Culling Game that could be voided by hopping between vessels. This includes having set up the Game so that he himself doesn't have to be the Game Master, ensuring it will go on even if something was to happen to him.
* LukeIAmYourFather: Is actually in a way Yuji's ''mother'', as she was a prior host of his.
* ManOfKryptonite: Kenjaku is this for Master Tengen, as Tengen is now more Curse than man because he failed to fuse with a Star Plasma Vessel in time, it’s become possible for him to be seized by Cursed Spirit Manipulation. Tengen fears that Kenjaku might absorb him the moment they meet one another.

* MeaningfulName: "Kenjaku" contains the kanji for "Measurement", befitting someone [[ForScience that treasures knowledge above all else]].

* OlderIsBetter: He has a number of ancient curses who are still rather potent in spite of scientific progress curbing the fears that spawned them. These include the Smallpox Curse, which despite the disease associated with it being all but neutralized by modern medicine still has immense amounts of power to see it through battles, or the Catfish Curse spawned from the old-timey belief that a giant underground catfish was the cause of earthquakes, which grants him the power to confuse and warp the perceptions of his enemies.
* OOCIsSeriousBusiness: The only time he drops his [[PerpetualSmiler constant]] [[AffablyEvil smile]] is when [[{{Archenemy}} Yuki Tsukumo]] appears at the climax of the Shibuya Incident.
* PaperThinDisguise: He acts ''nothing'' like Geto, and only manages to maintain his disguise for so long because he keeps his distance from people who can know Geto ahead of time. Internationally and within the Jujutsu Headquarters' archaic ways of thinking, it and his previously mentioned identity as "Noritoshi Kamo" allows him to act as if HiddenInPlainSight and a genuine international {{Ambadassador}} of Jujutsu.
* PetTheDog: Chapter 160 shows him personally escorting civilians caught within the Culling Game out of the danger zones while they are dreaming, giving each person one chance to escape the battlefields rather than just leaving them. Given his personality, he likely did so for pragmatic reasons involving his plan rather than actual benevolence, but his actions still uncharacteristically prevented the loss of innocent life. He also [[SincerityMode sincerely thanks Sasaki, Yuji's schoolfriend that he saved in the first chapter from the Curses, for getting along with his son, which has absolutely no benefit to him, but indicates that he was aware of Yuji and his lifestyle even before he consumed Sukuna's finger]].

* RunningBothSides: As he explains to Noritoshi, with his BodySurf and heaps of connections gathered over the centuries it should come as no surprise to the heroes that Kenjaku already had a vice grip on Jujutsu Headquarters, to the point where he could waltz in, eliminate the higherups that voted for "Suguru Geto"'s execution order and made Yuta take Yuji's executioner order up again, then plonk himself in as Head of the Kamo Household through his old identity as Noritoshi Kamo to grasp power over the most powerful of the Conservative factions in the Association. Meaning the entire Association has been dancing in the palm of their greatest enemy's hand for centuries.
* SimpleYetAwesome: Appears to see Maximum: Uzumaki as this. Uzumaki combines all currently absorbed Cursed Spirits into one and throws the result at the opponent. Geto says he initially found it unexciting, due to how it gets rid of the main advantage of Cursed Spirit Manipulation. He reveals, however, that using it on any curses that are Semi-Grade 1 or higher allows the user to permanently steal that Curse's Techniques.

* TimeAbyss: Very likely the oldest being alive. One of the sorcerers he resurrected for the Culling Game came from the Yayoi period, suggesting the possibility that Kenjaku was active as far back as 300 ''BC.''.

* YouHaveOutlivedYourUsefulness: He had his eye on at least two of the Disaster Curses he was working with, and given how Dagon and Hanami were friends with his targets, he was probably planning to get rid of them, too.

* VilerNewVillain: [[ZigzaggingTrope Zig-zagged]]. He freely admits that he lacks Geto's WellIntentionedExtremist motivations, but he's [[NothingPersonal much less malicious]] thsn the sadistic Disaster Curses or Sukuna.

He returns in the main series, now apparently in league with the Disaster Curses and leading a new posse of Curse Users. However, due to the drastic shift in his role, appearance and personality between "Volume Zero" and "Jujutsu Kaisen", all of his entries based on appearances in "Jujutsu Kaisen" are considered '''MAJOR SPOILERS'''.

!!Kenjaku

!!!'''Age''': 27 (Biologically)
!!!'''Cursed Technique:''' [[TheBeastmaster Cursed Spirit Manipulation]], [[GrandTheftMe Unnamed Brain Transplant Technique]], [[{{Biomanipulation}} Idle Transfiguration]]
[[quoteright:205:https://static.tvtropes.org/pmwiki/pub/images/suguru_geto.png]]
[[caption-width-right:205:[[labelnote:Click here to see his true form]]https://static.tvtropes.org/pmwiki/pub/images/20210505_182221.png[[/labelnote]]]]
[[caption-width-right:205:[[labelnote:Click here to see him in Noritoshi Kamo's body]]https://static.tvtropes.org/pmwiki/pub/images/eutkvexwgaefss_4.jpg[[/labelnote]]]]

->''"Regret, huh? I've forgotten what that feels like."''
A former student of Jujutsu High and Gojo's best friend, who plans to create a world of only jujutsu sorcerers... [[BaitAndSwitch Or at least, that was the real Geto's plan.]] \\\

This Curse User is actually an impostor named Kenjaku who used his Cursed Technique to transplant his brain into the body of the real Suguru Geto, who died during the events of Volume 0. He's been [[BodySurf body surfing]] around for some time now; one of his previous bodies was the evil Sorcerer Noritoshi Kamo[[labelnote:*]]Spelled differently in Japanese from the ''other'' Noritoshi Kamo, though otherwise pronounced the same[[/labelnote]], responsible for the creation of the Death Paintings about 150 years ago, but going by the Sorcerers he has gathered up as Cursed Objects, it's been at least a thousand and some years. Joining forces with the Disaster Curses at the beginning of the story, he uses them to accelerate his plan of bringing out humanity's potential in using cursed energy and ushering in a new era of jujutsu sorcery through arranging a twisted Culling Game. \\\

Along with the technique he used to transplant his brain and being a powerful Barrier Technique user, he also has Geto's Cursed Technique "Cursed Spirit Manipulation", which allows him to absorb and control naturally occurring curses and use them for combat. Cursed Spirit Manipulation's Maximum Technique, Uzumaki, also has a secondary effect that [[PowerParasite transfers the Innate Techniques of all the Curses used to fuel it]] if they are Semi-Grade 1 or higher, through which he's claimed Mahito's Idle Transfiguration.\\\

[[folder:General Tropes]]
* AffablyEvil: Kenjaku is rarely ever angry, spiteful or cold, and keeps up a relaxed persona around allies and enemies alike. He expresses admiration for sorcerers regarding their strategies even as they fight him, and even rambles at Yuji about the specifics of his technique, giving the impression of a scientist of sorts. Despite having manipulated the Disaster Curses for his goals and planning to dispose of them in the end, he's nothing but courteous, patient, and amicable around them, even relaxing and playing games with them from time to time.

* ArchnemesisDad: Choso completely loathes him for the abuse he put the Death Painting's mother through, and he's later implied to be Yuji's archnemesis ''mom''. Having birthed him in one of his previous bodies seemingly for the purpose of turning him into a host for Sukuna.

* AsskickingEqualsAuthority: After becoming ungodly powerful by stacking his deck with cards like Cursed Spirit Manipulation, Idle Transfiguration and presumably even Cursed Techniques than that at his disposal, he effortlessly upsets the power balance of the Jujutsu Association and takes over the entire thing in a matter of days after the Shibuya Incident.
* TheBadGuyWins: Geto's plan actually succeeds in The Shibuya Incident arc. Cursed Energy now abounds Tokyo, Curses of all sorts are wandering about and the only possible person powerful enough to stop it is locked up.

* BilingualBonus: He shows up at a round table surrounded by suited men who tell him to take a seat in ''Mandarin'' Chinese and Kenjaku politely accepting, while Reggie is discussing the Culling Game being a front for something with Megumi, and that Kenjaku will reveal the Culling Game's true purpose as soon as the Colonies reach a fever pitch.
* BodySurf: Has been hijacking other sorcerer's bodies for at least the last thousand and some years by swapping out their brains with his own and then stitching the skullcap back on. It lets him use their Cursed Techniques, innate physical traits of theirs and allows him to skirt out on any penalties from Binding Oaths he takes in their names by just acquiring a new body.

* TheChessmaster:
** Distinct, in contrast to the original Geto's reliance on direct combat ability and power in numbers. Without the first Geto's "family", his social influence, or his collection of controlled Curses, this Geto relies on coordinating with intelligent Curses and devising plans and strategies to ensure success.
** Upon revealing the extent of his plans to Yuki Tsukumo, the insane amount of machinations required to pull it off becomes apparent, having been working on his schemes for over 1000 years. He has been making binding vows with hundreds of sorcerers over the years to trap them within cursed objects that he has fed to 500 people throughout Japan, and has also sought out 500 people who possess latent cursed techniques but no cursed energy to use them, marking both groups with his energy. He then awakens the potential of all 1000 people, creating cursed vessels and curse users to sow chaos in the country for the purpose of furthering the evolution of cursed energy and sorcerers. According to Reggie Star, however, this is at best Kenjaku's secondary or tertiary objective, insisting that Kenjaku will drop a proverbial bomb on the Culling Game once the riff-raff sorcerers are killed by the stronger players, at which point the true nature of the ritual will become apparent.

* ComboPlatterPowers[[=/=]]ConfusionFu: Kenjaku explains to Yuji that this is one of the biggest advantages of Cursed Spirit Manipulation; He has no lack of powerful Cursed Spirits at his disposal due to being a purveyor of {{Ancient Evil}}s and can use them in tanden. The combo of Cursed Spirit techniques he hits Yuji with in Shibuya borders on YouCannotGraspTheTrueForm, getting covered in damaging blood while simultaneously falling down a repeating sinkhole until he's eventually crashed into the ground with great force.

* DeadPersonImpersonation: For all intents and purposes, this sorcerer identifies as Suguru Geto after taking his body, even to his curse allies. He only reveals his false nature to Gojo, and this is after Gojo correctly guesses it.

* TheDogWasTheMastermind: As he explains to Noritoshi, with his BodySurf and heaps of connections gathered over the centuries it should come as no surprise to the heroes that Kenjaku already had a vice grip on Jujutsu Headquarters, to the point where he could waltz in, eliminate the higherups that voted for "Surugu Geto"'s execution order and made Yuta take Yuji's executioner order up again, as well as plonk himself in as Head of the Kamo Household through his old identity as Noritoshi Kamo to grasp power over the most powerful of the Conservative factions in the Association. Meaning the entire Association has been dancing in the palm of their greatest enemy's hand for centuries.

* EvilKnockoff: Confesses that his plot involves creating hundreds of lesser versions of the Sukuna/Yuji composite through forcing dozens of test subjects to ingest cursed objects. Although, he's been laying the groundwork for it long before Itadori so much as swallowed a single finger.

* EvilSorcerer: '''The''' evil sorcerer, if his reputation during his life as Noritoshi Kamo is anything to go by, and a much more straightforward example than Sukuna. Ancient and malevolent? Check. A prolific manipulator and schemer? Check. Vastly knowledgeable about and skilled in the local variety of FunctionalMagic? Check. Interested primarily in obtaining forbidden knowledge and conducting twisted experiments? Oh so very much check...
* EvilutionaryBiologist: Kenjaku wants to optimize cursed energy and bring forth the peak of it's potential, which he believes can't be found in humans as they are as he has already pushed that limit as far as it can go. To fix this, he's willing to commit abhorrant acts and has already been doing so in the shadows for centuries, and by the events of the series, he's not above plunging the world into chaos in the name of discovering the next stage of humanity.
* {{Familiar}}: He's gained this technique thanks to using the original Suguru's body. He has a greater handicap with it than Suguru in his prime, however, thanks to the original Geto losing all his curses in his battle with Yuta. On the other hand, Kenjaku is considerably more wizened and willing to experiment with the technique, meaning he's even more effective then the original.
* {{Foreshadowing}}: He has strange markings on his forehead. These are stitches, indicating the brain transplant that was used to hijack Geto's body. A somewhat recursive example occurs after and before this is revealed, as his previous identity of Noritoshi Kamo was initially shown with his forehead heavily obscured by shadows, only for Choso is remember a clearer picture of him with the same tell-tale stitches across his forehead when he meets the current host of Geto, showing that they're the same person. Anybody else with [[MarkOfTheBeast such markings]] is all but certainly a previous host of his, including Yuji's mother.

* GrandTheftMe: His Innate Technique allows him to control the bodies of others by swapping brains with them, giving him access to their Techniques as well.
* HorrifyingTheHorror: During his and Mahito's final meeting when the former absorbs the latter, the Disaster Curse is utterly terrified of the sheer DissonantSerenity he possessed, and tried to flee.
* HumanResources: He views humans as nothing more than sources of cursed energy, and is willing to perform all sorts of inhumane and vile acts against innocent people due to this view.
* HumanShield: He can summon curses to act as crude shields for his vital areas.

* {{Irony}}: Wants to help optimize and evolve Cursed Energy to help improve humanity to the next stage of evolution, but several cast members point out that all he's done is create an environment comparable to the Heian period from hundreds of years ago.
* ImmortalGenius: He's thousands of years old thanks to his [[BodySurf Innate Technique]], and his understanding of the nature of Cursed Energy and its applications dwarfs all of modern Jujutsu Society: He's accomplished things like creating hybrids of humans and Cursed Spirits to transplanting souls into different bodies.
* KickTheSonOfABitch: During the Shibuya Incident, he mercilessly sends the disaster curses to their death, and personally betrays Mahito and devours him.
* LackOfEmpathy: Doesn't seem to care in the slightest who gets hurt or killed for his goals. Unlike Mahito however, he's not an out-and-out {{Sadist}}, and doesn't actively make people suffer or kill them unless it's to further his plans. Chapter 160 however, shows him personally escorting civilians out of the radius of the chosen sites for his Culling Game, giving them the choice to leave the site of what will soon become a killing field. Despite it being hinted that he's doing it primarily for PragmaticVillainy, it still shows a marked contrast against both [[EvilIsPetty Sukuna]] and [[{{Sadist}} Mahito]], the prior previous antagonists of the story, both of whom would have gleefully committed mass slaughter of human life for little to no reasoning, showing that whilst he might not care especially much for the lives lost during his plans, [[{{ALighterShadeOfGrey}} he won't go out of his way to cause unnecessary deaths either]].
* LightningBruiser: Another perk of acquiring Geto's body and memories, since Geto could take out anyone short of Gojo or Toji with his bare hands. In Shibuya he [[NoSell snaps Miwa's katana in half with his palm]] after catching her surprise attack and briefly manhandles Choso in a brawl.

* LoopholeAbuse: He is masterful at finding clever workarounds to bypass the restrictions within the practice of jujustsu, such as his circumvention of the Prison Realm's conditions to capture Gojo or the hundreds of Binding Vows created for the Culling Game that could be voided by hopping between vessels. This includes having set up the Game so that he himself doesn't have to be the Game Master, ensuring it will go on even if something was to somehow happen to him.

* ManOfKryptonite: Kenjaku is this for Master Tengen, [[spoiler: as Tengen is now more Curse than man because he failed to fuse with a Star Plasma Vessel in time, it’s become possible for him to be seized by Cursed Spirit Manipulation. Tengen fears that Kenjaku might absorb him the moment they meet one another.]]
* MasterOfOneMagic: Tengen states that, not including himself, Kenjaku is the single most skilled user of [[TrapMaster Barrier techniques]] there is.

* NestedOwnership: Stealing Geto's body has given him control over his Technique, but while he didn't get Geto's Curses with it, he has seemingly gathered even more horrific ones for his collection such as Kurourushi, the Smallpox Deity and so on.
* OlderIsBetter: He has a number of ancient curses who are still rather potent in spite of scientific progress curbing the fears that spawned them. These include the Smallpox Curse, which despite the disease associated with it being all but neutralized by modern medicine, still has immense amounts of physical strength to see it through battles, and Kurourushi, a Special-Grade Cockroach spirit he unleashes on the Sendai Culling Game colony.

* PaperThinDisguise: He acts ''nothing'' like the original Geto, and only manages to maintain his disguise for so long because he smartly keeps his distance from anyone who can see through his act.
* PetTheDog: Chapter 160 shows him personally escorting civilians caught within the Culling Game out of the danger zones while they are dreaming, giving each person one chance to escape the battlefields rather than just leaving them. Given his personality, he likely did so for pragmatic reasons involving his plan rather than actual benevolence, but his actions still uncharacteristically prevented the loss of innocent life. He also [[SincerityMode sincerely thanks]] Sasaki, Yuji's schoolfriend that he saved in the first chapter from the curses, for getting along with his son, which has absolutely no benefit to him, but indicates that he was aware of Yuji and his lifestyle even before he consumed Sukuna's finger.
* RedRightHand: Stitches appear on the forehead of any body Kenjaku inhabits. Only those who can use Cursed Energy or see curses can see the stitches however; to anyone else they just look like stigmata-like forehead scars.
* RevivalLoophole: His unique ability to switch bodies allows him to make scores of Binding Contracts, only to void them and their payments when he takes over a new corpse.
* SimpleYetAwesome: Appears to see Maximum -- Uzumaki as this. Uzumaki combines all currently absorbed cursed spirits into one and throws the result at the opponent. Geto says he initially found it unexciting, due to how it gets rid of the main advantage of Curse Manipulation. He reveals, however, that using it on any curses that are Semi-Grade 1 or higher allows the user to permanently steal that curse's techniques.
* SuperpowerLottery: His BodySurf Innate Technique is already useful by itself, but it's greatest advantage is that it gives Kenjaku the entirely unique ability to [[RevivalLoophole break Binding Vows without suffering a single negative repercussion]], which is thought to be impossible by most Sorcerers and has made it ''very'' easy for him to manipulate people . Geto's body nets him Cursed Spirit Manipulation on top of that, and he acquires Mahito's Idle Transfiguration at the tail-end of the Shibuya Incident.
* TwoAliasesOneCharacter: Noritoshi Kamo, the creator of the Death Paintings, turns out to be one of Kenjaku's past identities.

* VilerNewVillain: [[ZigzaggingTrope Zig-zagged]]. He freely admits that he lacks Geto's WellIntentionedExtremist motivations, but he's [[NothingPersonal much less malicious]] then the sadistic Disaster Curses.

[[/folder]]

[[folder:'''The Original (Major Spoilers)''']]
!!Suguru Geto
!!!'''Voiced by:''' Creator/TakahiroSakurai (Japanese), Creator/LexLang (English)
!!!'''Age''': 27
!!!'''Cursed Technique:''' [[TheBeastmaster Cursed Spirit Manipulation]]
[[quoteright:205:https://static.tvtropes.org/pmwiki/pub/images/suguru_geto_jjk_0.png]]
->''"I don't like monkeys. That's the truth I chose."''

The ''real'' Suguru Geto, former student of Jujutsu High and former best friend of Satoru Gojo. In order to rid the world of Cursed Spirits, he planned to completely exterminate non-sorcerers. \\\

During the events of Volume 0, he released multiple powerful spirits at Shinjuku and Kyoto. He then invaded Jujutsu High in order to take control of Yuta Okkotsu's GuardianEntity Rika, but was defeated by Yuta and later killed by Gojo. His body was stolen some time later. \\\

His Cursed Technique was "Cursed Spirit Manipulation", which allowed him to absorb and control curses.
----
* AffablyEvil: To those he respects, even after his StartOfDarkness, Geto is laid back, well-spoken, and often smiling. He doesn't take his frustration out on anyone, and is even not above casual conversation. When he's around people he wants to manipulate or harm, however, he slips into FauxAffablyEvil.
* ArcVillain: Serves this role as the main villain of the prequel arc, with all of Jujutsu High working to stop him. While he is defeated, his ultimate fate is ambiguous. The main series confirms Gojo killed him then.
* AxCrazy: Suguru absolutely ''lost it'' after becoming a Curse-User, regularly watching his Cursed Spirits butcher non-sorcerers with a serene smile on his face.
* BashBrothers: Was this with Gojo as Jujutsu High students, with the two going on missions together and the pair called "the strongest".
* TheBeastmaster: His Cursed Technique makes him this with Curses.
* BloodbathVillainOrigin: Geto began to believe that the solution to stopping the creation of cursed spirits was to kill all non-sorcerers after he began to look down on non-sorcerers and witnessed the deaths of sorcerers who tried to exorcise cursed spirits such as Yu. He started to act on it when on a mission the villagers wanted him to kill two young sorcerers, causing him to massacre all 112 of the village's inhabitants. In strict adherence to his belief, Geto even killed his own non-sorcerer parents.
* CannibalismSuperpower: Curses he defeats turn into small black orbs which he then has to eat in order to take control of them. The caveat being that curses taste like rags covered in vomit. Which he doesn't enjoy. He's eaten them over ''six-thousand'' times.
* CynicismCatalyst: Riko's tragic death and the cruel circumstances surrounding it are what make Geto lose his faith in humanity, starting him on the path to becoming a MisanthropeSupreme.
* DeadAllAlong: Though Gojo appears to confront him at the end of Volume 0 and asks for his final words, his fate is ultimately left open, and he returns at the beginning of the main series with stitches across his head, leading one to believe he simply recovered offscreen. Upon meeting Gojo in Shibuya, the present-day Suguru reveals he is in fact a different being using a technique to control Geto's body, confirming Gojo had killed him then.
* DeclarationOfProtection: When he gives Riko Amanai the choice to either go through with her MergerOfSouls with Tengen or escape to live her own life, Geto declares that he and Gojo will protect her no matter what choice she makes, even if it means going against all the higher-ups of the Jujutsu world. This really emphasizes what a good guy he used to be and just how much Riko's SurprisinglySuddenDeath immediately afterwards affected him.
* EeriePaleSkinnedBrunette: Pale skin, long black hair, and a curse user who can summon monstrous cursed spirits and wants to massacre all non-sorcerers.
* EvilFormerFriend: Gojo's. The two were best friends until Geto's loss of faith in the cycle of exorcism led him to decide to kill all non-sorcerers.
* EvilIsPetty: He sprays air freshener all over himself after meetings with non-sorcerers because he doesn't want to catch their "monkey stink".
* FaceHeelTurn: The Hidden Inventory arc shows that Geto used to be a hero and all-around NiceGuy. He may have had some GoodIsNotNice qualities that he shared with Gojo, but he always wanted to do the right thing, even if it meant defying his superiors. A series of cruel and unnecessary deaths, along with his own growing feelings of hopelessness and doubt drive him towards his heel turn.
* {{Familiar}}: Control over these is Geto's signature brand of cursed technique. He can tame lower-level spirits by compacting them into a ball and ingesting them, gaining the ability to call upon them in battle.
* FauxAffablyEvil: Though he remains laid-back and neutral at the absolute worst to his old friends and those he works with, Geto appears to mask a tranquil fury and spite when faced with people he wishes to manipulate or harm, sometimes brutally ending their lives.
* FightingFromTheInside: Despite having been killed, he is revealed to still be alive deep down due to the nature of the second Geto using his body for possession. His body twitches and briefly reacts to Gojo speaking to him, and the second Geto mentions that this is a first.
* {{Irony}}: A sorcerer who consumed and exploited curses has been himself assimilated, with his body now a puppet for a villain using his identity and powers for their own ends.
* MageBornOfMuggles: Ironically, his parents were ordinary humans with no ties to the world of Curses. They ended up some of his first victims.
* MeaningfulName: Suguru literally means "superior being".
* MisanthropeSupreme: After a series of experiences pertaining to the loss of multiple innocent lives and the increasing feeling of a lack of purpose behind his occupation, Geto became so disillusioned with humanity that he slowly began to slip into this, culminating in him exterminating an entire village on his final mission. Notable is that his hatred is directed primarily towards non-Jujutsu sorcerers, rather than humanity as a whole.
* MythicalMotifs: He's styled as an evil bodhisattva, a person on the path to Buddhahood. Geto has his "enlightenment" when he chooses to kill all non-sorcerer humans for being inferior and responsible for the existence of cursed spirits. Chapter 70's color page has him drawn as a bodhisattva with an inverted mudra, representing how he offers no salvation, and he amasses a group of loyal followers. Visually, he wears Buddhist monk robes and has large, pierced ear lobes. Chapter 0-3 has a woman compare him to the Buddha himself.
* PetTheDog: Despite how ruthless he is, he actually took in and helped raise Nanako and Mimiko after utterly slaughtering the village that was persecuting them. Years later, the two are still deeply loyal to him because of it.
* SelfMadeOrphan: When confronted about his killing shortly after his betrayal, it's revealed that one of Geto's first victims were his parents. As he admits, if he's going to slaughter the majority of humanity, he can't make compromises on emotional attachments.
* SanitySlippage: He's much less in control of himself in ''0'' then he was during the Hidden Inventory arc. doing things like crying hysterical tears when he sees sorcerer youth risk themselves for Yuta.
* SlasherSmile: Sports a wide, crazed smile on his face throughout his battle with Yuta and his classmates.
* SonOfAnApe: Geto is fond of calling non-Jujutsu sorcerers "monkeys", indicative of how strongly he looks down on them.
* StepfordSmiler: Geto almost constantly sports a cheerful grin on his face during his days as a curse user to match his lighthearted and unhinged new persona. He admits to Gojo before his death that he's actually extremely depressed, stating that he "can't smile from the bottom of his heart in a world like this." It's implied that his last smile in response to Gojo's hidden words was a genuine one.
* SuperSupremacist: Despite starting out as more idealistic and principled than Gojo, years of sacrifice and loss in the name of protecting humanity embittered Geto towards what he perceived to be an ungrateful mass of idiots. Losing friends and colleagues to Curses while regular humans remained ignorant at best and dismissive at worst of their sacrifice eventually led Geto to begin despising non-sorcerers as a whole, derogatively referring to them as "monkeys". Struggling with these feelings at first, he eventually embraces them and removes the last obstacle he might have had in committing to his genocidal plans.
* TragicBromance: With Gojo. The two were best friends as students until Riko Amanai's death and the countless cycle of exorcism all for non-sorcerers like the ones who applauded Riko's death led Geto to lose his faith, vowing to kill all non-sorcerers to create a world of only sorcerers without curses. Geto's betrayal greatly both angered and saddened Gojo. This eventually led to Gojo killing Geto during the Night Parade of a Hundred Demons, with Gojo still calling him his one and only best friend after doing so. Geto's death allowed for [[BigBad Kenjaku]] to take over his body, a turn of events that lead to Gojo getting sealed in the Shibuya Incident.
* WellIntentionedExtremist: His goal is to kill all regular humans due to them not being able to control their Cursed Energy, which would prevent Cursed Spirits from being created and consequently end the cycle all jujutsu sorcerers are trapped in. As he admits to Gojo, he simply doesn't want to see anyone's smile disappear.
* WeUsedToBeFriends: Was this with Gojo, taking on many missions together during their time at the college. Gojo leaving Geto in the dust with his power, as well as Geto's own slipping sense of self lead to him eventually defecting as a sorcerer. Even after killing Geto following his defeat by Yuta, Gojo still calls him his one and only best friend.