Uppermoons || ♡'s Muzan

The Twelve Kizuki (十じゅう二に鬼き月づき, Jūnikizuki?, lit. Twelve Demon Moons) is an organization of the twelve most powerful demons who are under the direct command of the Demon King, Muzan Kibutsuji. They serve as the main antagonistic faction of Demon Slayer: Kimetsu no Yaiba.

The Twelve Kizuki is a body of the 12 strongest individuals amongst demon-kind, second in strength and authority only to the Demon King himself, Muzan. Each member of the Twelve Kizuki has received a large portion of Muzan's blood, greater than any other demon, thus exponentially increasing their power.[1] As a testament to this, every member of the Twelve Kizuki can use Blood Demon Arts; supernatural powers and techniques manifested through their blood that only significantly powerful demons have access to.

Explanation of the Twelve Demon Moons The ranks of the Twelve Kizuki. The Twelve Kizuki are divided into two groups: the six Upper Ranks (上じょう弦げん, Jōgen?), numbered one through six, and the six Lower Ranks (下か弦げん, Kagen?), also numbered one through six. The number signifies their ranking among the Twelve Kizuki, determined by each member's level of strength, Upper Rank One being the strongest and Lower Rank Six being the weakest. The Lower Ranks have their numbers and ranks engraved only into one eye, whereas the Upper Ranks have their numbers in one eye and the kanji for "Upper Rank" (上じょう弦げん, Jōgen?) in the other.

While the exact relationships between the two groups are unclear, it is known that the Upper Ranks despise the Lower Ranks.[2] The Upper Ranks each possess a level of power that far surpasses that of the Lower Ranks; as proof of their strength, the strongest of the Demon Slayer Corps, the Hashira, have killed numerous Lower Ranks over the years, while the Upper Ranks have killed and eaten many Hashira over the years. Kagaya Ubuyashiki states that it had been over a hundred years since an Upper Rank has been killed following the defeat of Gyutaro and Daki.[3] Furthermore, it has been remarked by Shinobu Kocho that the strength of an Upper Rank demon is, at least at minimum, comparable to three Hashira,[4] although it should be noted that the capabilities of a Hashira vary from one to another, especially the ones who can manifest their Demon Slayer Marks to further augment their strength. While the Lower Ranks have been replaced countless times, the Upper Ranks have not changed over the past 100 years at all, as a testament to the strength of its members.[5]

When a member of the group is removed from the Twelve Kizuki, Muzan demotes these members by slashing the pupils where the number signifying their rank is located, creating an "X" shaped scar over the digit, signifying that they are no longer part of the Twelve Kizuki. The only example of this happening is Kyogai, who had already reached his "limit" and could no longer consume human flesh. This gradually led to Kyogai losing his appetite for humans and beginning to lose the ability to evolve and become stronger. Therefore, he was deemed too weak to remain in his position of Lower Rank Six and subsequently removed.

After their most recent failure with the death of Rui, holder of Lower Rank Five, Muzan decided to dismantle the Lower Ranks completely. He ordered Nakime to summon each member to the Infinity Castle and proceeded to kill all of the Lower Ranks, sparing only Enmu, Lower Rank One, and giving him a chance to redeem himself by killing a Hashira and bringing him the head of Tanjiro Kamado.[6] With Enmu's death at the hands of Tanjiro, the Lower Ranks are functionally disbanded with all of their members dead,[7] and with Nakime's death at the hands of Muzan himself, the same also applies to the Upper Ranks.[8]

Mission The Twelve Kizuki have been given two tasks to complete by Muzan's command:

To find the Blue Spider Lily (the key ingredient of the experimental medicine that made Muzan a demon), but since Muzan's discovery (via Hantengu) that Nezuko Kamado is immune to the sun, he has decided that the Upper Ranks' first focus is to capture her and bring her to him. The destruction of the Demon Slayer Corps. As part of their mission to destroy the Corps, Muzan gave the Twelve Kizuki specific orders to hunt down and eliminate the Ubuyashiki Family, as they are the corps' leaders and backers, and are ultimately what keeps the Corps alive and enables them to rebuild the organization again and again no matter how many times Muzan and the Twelve Kizuki try to destroy it. After centuries of failing at these two tasks, Muzan has decided that the Twelve Kizuki should serve him with suicidal devotion to ensure success. Blood Battle According to Kokushibo, if there is any dissatisfaction between the members of the Upper Rank demons, the lower-ranked demon must invoke the right to kill or defeat their desired target in order to raise their position in the hierarchy. Any that defies the rules will face retribution,[9] as seen when Kokushibo sliced off Akaza's hand as a warning for disregarding the hierarchical order when he attacks Doma.[10][11] However, such battles are exceeding rare due to the inherent risk of challenging a more powerful opponent: Kokushibo himself is known to have fought in three past blood battles, one of which involved Akaza. Of those three opponents, he killed and absorbed two of them, while sparing Akaza because he enjoyed the fight.[12]

Privileges As the Twelve Kizuki are deemed by Muzan to be the twelve most powerful demons (second only to himself), he is known to constantly show them favoritism and give them special privileges normally not given to average demons. One of these privileges is that he would empower all members of the group with large amounts of his blood in order to increase their power and strength in acknowledgement of their achievements and further strengthen them in order to be of further use in his plans.

Moreover, Upper Rank demons have the authority to transform humans they view as worthy into demons by giving them blood, and upon receiving permission from Muzan, their blood will transform into his. This was seen with Doma when he turned Gyutaro and Daki into demons by giving him his blood and with Kokushibo when he turned Kaigaku into a demon by giving him his blood.

As seen from the case with Rui, Muzan gave him special permission to form a large group of demons - despite his own law of forbidding them to team up together in large numbers - in order to satisfy his longing for a family. This shows that despite his paranoia of other demons working together in order to overthrow him, his favoritism for Rui exempted him from this law and allowed his "family" to exist.

With Gyutaro and Daki, Muzan gave them the special privilege of sharing the position of Upper Rank Six. His favoritism for Gyutaro was the primary reason for this and caused him to brush aside the fact that he saw their emotional attachment to each other as weakness and did not truly acknowledge Daki as an Upper Rank.

With Akaza, Muzan gave him special permission not to eat women. Akaza was noted by Doma to have an unusual aversion to eating or even hurting women, despite the immense power he could gain by devouring them due to their stronger nutritional value to a demon's development. Despite his orders for the Twelve Kizuki to continuously strive for more power by eating humans en masse to be of better use to his plans, Muzan actually gave Akaza special permission to not eat women and indulged his unusual quirk due to considering him to be one of his favorite Upper Ranks. Akaza was also favored by Muzan to the point that he was only deployed for special assignments and nothing else, a right not even given to the two demons who ranked above him.

List of Known Members Anime Status Upper Ranks Kokushibo Doma Akaza Nakime Hantengu Upper Rank One Kokushibo Upper Rank Two Doma Upper Rank Three Akaza † Upper Rank Four Nakime Former Upper Rank Four Hantengu † Gyokko Kaigaku Gyutaro Daki Upper Rank Five Gyokko † Upper Rank Six Kaigaku † Former Upper Rank Six Gyutaro † Former Upper Rank Six Daki † Lower Ranks Defunct Enmu Rokuro Wakuraba Mukago Rui Lower Rank One Enmu † Lower Rank Two Rokuro † Lower Rank Three Wakuraba † Lower Rank Four Mukago † Lower Rank Five Rui † Kamanue Kyogai Lower Rank Six Kamanue † Former Lower Rank Six Kyogai † Manga Status (Spoiler Warning) Upper Ranks Defunct Kokushibo Doma Akaza Nakime Hantengu Upper Rank One Kokushibo † Upper Rank Two Doma † Upper Rank Three Akaza † Upper Rank Four Nakime † Former Upper Rank Four Hantengu † Gyokko Kaigaku Gyutaro Daki Upper Rank Five Gyokko † Upper Rank Six Kaigaku † Former Upper Rank Six Gyutaro † Former Upper Rank Six Daki † Lower Ranks Defunct Enmu Ubume Rokuro Hairo Wakuraba Lower Rank One Enmu † Former Lower Rank One Ubume † Lower Rank Two Rokuro † Former Lower Rank Two Hairo † Lower Rank Three Wakuraba † Mukago Rui Kamanue Kyogai Lower Rank Four Mukago † Lower Rank Five Rui † Lower Rank Six Kamanue † Former Lower Rank Six Kyogai † History Muzan impales Hakuji's head (Anime) Muzan first envisions the Twelve Kizuki's formation while transforming Hakuji. While transforming a young martial artist named Hakuji into a demon, Muzan first entertained the idea of an organization of the twelve strongest demons. His wish was fulfilled with Hakuji and former Demon Slayer Michikatsu Tsugikuni joining. Other members that later joined the ranks of the Twelve Kizuki included a psychopathic cult leader, a mentally unstable criminal awaiting execution, an outcast named Managi who had been brutalized by the family of a child he'd slain, two injured and poverty-stricken siblings from Yoshiwara named Gyutaro and Ume, a serial killing musician, a mocked writer, a sickly boy named Rui, a sadistic pseudo-doctor, a deranged filicidal woman named Yae, and a wounded warrior.

Michikatsu accepts Muzan's offer to become a demon Michikatsu Tsugikuni's encounter with Muzan. The Upper Ranks grew in power and their ranks stagnated for more than a century, while the Lower Ranks were frequently killed by high-level Demon Slayers, especially the Hashira. In fact, the Demon Slayer Corps even made slaying a Twelve Kizuki member one of the requirements to becoming a Hashira. Ubume, former Lower Rank One and Hairo, former Lower Rank Two, were killed by Sanemi Shinazugawa and Kyojuro Rengoku respectively, their deaths instantly promoting the swordsmen to Hashira.

The Lower Moons gathered The Lower Ranks moments before their execution, sans Enmu. The first of the Twelve Kizuki that was encountered in the series was the former Lower Rank Six, Kyogai, who was excommunicated from the Twelve Kizuki by Muzan for not being strong enough. Kyogai is slain in battle by Tanjiro Kamado. Tanjiro and his companions would shortly thereafter embark on the Natagumo Mountains to face-off against Lower Rank Five, Rui, who was manipulating a group of demons to forcibly act as his family and to assist him in the killing of Demon Slayers. Tanjiro almost managed to behead Rui, but the demon outwitted him by using his threads to cut off his own head before Tanjiro could. He is later saved by the timely arrival of the Water Hashira, Giyu Tomioka, who swiftly beheads Rui for good. Rui's death would later prompt Muzan Kibutsuji to lose his entire faith in the faction's ability and proceeded to dismantle the remaining Lower Ranks by coldly annihilating the members. Kamanue, Lower Rank Six, Mukago, Lower Rank Four, Wakuraba, Lower Rank Three, and Rokuro, Lower Rank Two were killed in that order. However, Lower Rank One, Enmu, was spared due to his bloodlust appeasing Muzan.

Enmu is then given an additional injection of Muzan's blood and tasked with killing the Hashira and Tanjiro as a last chance offer to save his life, with the promise of even more blood if he were to complete his mission. Enmu later intercepted Tanjiro with his companions on the Mugen Train. He planned to feast on the 200+ passengers by merging his body with the train and using his Blood Demon Art to trap them in their dreams. Through the joint effort of Tanjiro Kamado and Inosuke Hashibira, Enmu is soundly defeated, only for their short-lived victory to be interrupted by the unexpected arrival of Upper Rank Three, Akaza. Akaza would commence battle with the Flame Hashira, Kyojuro Rengoku. After a lengthy battle, Akaza mortally wounds Kyojuro, but is forced to flee from the rising sun.[13]

The trio defeats the Upper Rank demons The first defeat of an Upper Rank in 113 years. Daki, Upper Rank Six, is the next high ranked demon encountered. After receiving word of a demon claiming its feeding ground in the Entertainment District, Tengen Uzui, the Sound Hashira, sets off with the aid of Tanjiro, Nezuko, Inosuke, and Zenitsu Agatsuma. The group manages to locate Daki and slice her neck off, only for her to reveal her older brother and the true Upper Rank Six, Gyutaro. Gyutaro and Daki, are then revealed to be sharing bodies and were finally both defeated after their simultaneous beheading after a long and grueling battle.

Immediately following the deaths of Gyutaro and Daki, Upper Rank Six, Muzan summoned the remaining members of the Upper Ranks, and gave Hantengu, Upper Rank Four and Gyokko, Upper Rank Five a mission to exterminate the Swordsmith Village, which would reduce the power of the Demon Slayer Corps by removing their ability to fight on par with the demons without Nichirin Sword. Both Hantengu and Gyokko were slain, but not before Hantengu witnessed Nezuko standing in the sun and telling Muzan. This shifted Muzan's main interest in devouring Nezuko to conquer the sun.

Tanjiro kills Hantengu and Urami Upper Rank Four's defeat. After his attack on the Ubuyashiki Manor, Muzan escaped into the Infinity Castle thanks to Nakime. It's revealed that Nakime has replaced Hantengu as the new Upper Rank Four and that Kaigaku, a former Demon Slayer and senior to Zenitsu Agatsuma, became the new Upper Rank Six after an encounter with Kokushibo, thereby replacing Gyutaro and Daki. It is unknown who the new Upper-Rank Five was, or if Muzan was even able to find a replacement in the first place.

Shortly after arriving in the Infinity Castle, Shinobu Kocho would stumble upon Upper Rank Two, Doma, feasting on his female cult followers in his chamber. A single woman survived, only to be mercilessly mutilated by Doma despite Shinobu's hasty efforts to save her. The battle commenced between the Hashira and Upper Rank. However, Shinobu's assortment of poison proved to be useless against Doma's might. The demon would then proceed to promptly defeat and absorb the Hashira, only for Kanao Tsuyuri to arrive just too late to save her.

Akaza's death (Anime) Upper Rank Three’s suicide. Meanwhile, Zenitsu ran into Kaigaku and had a duel to the death with his former senior, resulting in Kaigaku's death and Zenitsu almost dying. Elsewhere in the castle, Tanjiro and Giyu Tomioka are located by Akaza. Akaza proved to be a fearsome opponent, nearly killing the two. Even after having cut off his head, Akaza through sheer willpower was able to keep his body from fading away and continue fighting. Only through memories of his previous life and name as a human and seeing visions of important figures of his past did he finally give up and pass on.[14]

Doma continues his fight against Kanao, who is assisted by Inosuke Hashibira. He initially overwhelms the two with his cryokinetic Blood Demon Art, but in the latter half of the fight, he is unexpectedly weakened by the lingering effects of Shinobu's poison after having absorbed her body. The two through their combined efforts were then able to sever Doma's head, putting an end to Upper Rank Two.

Mitsuri and Obanai encounter Nakime CH164 Upper Rank Four battles the Love and Serpent Hashira. The Love Hashira, Mitsuri Kanroji and Serpent Hashira, Obanai Iguro confront the newly appointed Upper Rank Four, Nakime. The demoness outwitted the pairs' attempts by the usage of her Blood Demon Art that warps and controls the entire infrastructure of the Infinity Castle as she sees fit. Simultaneously, the Mist Hashira, Muichiro Tokito was separated from the Stone Hashira, Gyomei Himejima by Nakime's Blood Demon Art, falling into the location of the most powerful Upper Rank demon, Upper Rank One, Kokushibo.

Kokushibo instinctively sensed the blood relation between him and Muichiro. Impressed by Muichiro's proficiency with his Breathing Style, he unsheathed his sword and revealed his Moon Breathing. The attack would sever Muichiro's left hand, and he is swiftly defeated with minimal effort. Instead of killing the Hashira, Kokushibo decides that he will transform Muichiro into a demon due to sentimentality in their blood relation and respect for his fighting ability. Genya Shinazugawa, waiting for an opportunity to ambush Kokushibo from behind, fires off his shotgun in an attempt to save Muichiro. Faster than Genya can follow with his eyes, Kokushibo immediately dismantles him; both arms are sliced off and he is bifurcated at his waist. Kokushibo mentions having encountered a Demon Slayer with a very similar physiology about 300 years ago, and prepares to kill Genya via decapitation.

Before he could administer the final blow, Genya is saved by the timely arrival of his older brother and Wind Hashira, Sanemi Shinazugawa. Sanemi manages to exchange blows against Kokushibo, albeit only for a short moment. After receiving a brutal injury from an attack, Sanemi reveals that he has "Marechi blood". He intended to use the intoxication effects of his premium blood as a distraction when fighting, and while Kokushibo is momentarily caught off guard by the scent, it has little to no effect thereafter. Using everything he could manage to think of and at his wit's end, Sanemi is almost killed by a barrage of blade swings. The Hashira is saved by the intervention of his comrade, Gyomei Himejima, the Stone Hashira and strongest Demon Slayer in the Demon Slayer Corps.

Kokushibo faces Gyomei and Sanemi simultaneously Kokushibo battles the Stone and Wind Hashira A difficult battle ensues between the Upper Rank One and the Hashira with the demon exploiting his extraordinary eyesight abilities along with his blades made of flesh. As he is pushed further into a corner, Kokushibo's blade grows far longer developing multiple smaller blades, further increasing both his already massive range and attack power, slowly overpowering the Hashira. A weakened but still alive Genya, manages to recover and remembering Tanjiro's words that being weaker gives him the unique advantage of being unnoticed by their enemies, uses the element of surprise to shoot demon bullets into Kokushibo.

Kokushibo is immobilized and weakened by Muichiro's blade that pierced into his abdomen, while the bullets inside him grow into trees, further depriving him of his movement and strength. He becomes increasingly desperate in his desire to win. He roars in fear, releasing crescent blades from his body in order to free himself. Gyomei and Sanemi barely dodge the attack while it fatally wounded Muichiro and Genya.[15] Gyomei seizes the chance to smash Kokushibo's head into the ground. However, This does not end the Upper Rank, who regrows his head. Increasingly desperate for victory, he develops flesh blades on his own body and becomes far more aggressive and monstrous.[16]

Kokushibo questions his existence as he passes away Defeat of Upper Rank One. The demon, however, has an internal conflict after witnessing his ugly form through his reflection on Sanemi's blade, and how what he has become contrasts significantly with what he wanted to be. As his thoughts of seeking to avoid defeat and resentment towards his self heavily conflict with him, his body begins to decay, exactly at the point where Muichiro stabbed him, struggling for a final time, the Upper Rank One's body crumbles away, as he realizes that all he wanted was to be like his more talented younger brother, signifying the end of the highest-ranking member of the Twelve Kizuki.

Obanai and Mitsuri are later shown to still have great difficulties with reaching Nakime's position; constantly being thwarted in their attempts by her Blood Demon Art throughout the entire duration of the Demon Slayer Corps' battles with the Upper Ranks. The two shortly thereafter are able to reconvene with Tanjiro and Giyu with the helpful assistance of the recently slain demoness doctor, Tamayo's assistant, Yushiro.

Muzan kills Nakime The Twelve Kizuki finally terminated in an act of self-preservation. Yushiro manages to ambush Nakime using his Blood Demon Art: Blindfold while she was distracted and assumes control of her body by altering her vision. Yushiro declares his intention of vengeance against Muzan for killing Tamayo; vowing to use his Upper Rank's ability against him to disassemble the castle and bring him to the light. Realizing the danger to himself, Muzan remotely detonated Nakime's head through his influence, killing her,[17] although her body still remained active for sufficiently long time to bring the fortress into the surface.

This attempt at self-preservation effectively eradicated the Twelve Kizuki. Furthermore, following Muzan's own demise, terminated any chance for the organization to rebuild.

Trivia In Japanese, the Twelve Kizuki are divided by moon terminology with the Upper Ranks being referred to as the "Waxing Moons" and the Lower Ranks being referred to as the "Waning Moons". Kyogai is the only member known to have been excommunicated from the Twelve Kizuki by Muzan himself, as all other known members would lose their position upon death. Kyogai is also the only member of the Lower Rank to have his position engraved on his right eye as opposed to the left eye like all other members. Nakime is the only member of the Twelve Kizuki to have only her number engraved in her eye. Of the members that serve as main antagonists, only Kyogai, Enmu, Gyokko, and Nakime do not have their human pasts shown in the story. However, Kyogai's life disguised as a human is shown, and the human lives of Enmu, Gyokko, and Nakime are revealed in supplementary material. Although the Lower Ranks were usually killed by the Hashira, Rui is the only one mentioned to initially have the capability to be trouble for them, that was until he shared his blood with his 'family'

– Infinity Castle. The Infinity Castle (異い空くう間かん無む限げん城じょう, Ikūkan Mugen-jō?) is the eponymous location of the Infinity Castle Arc. As the Blood Demon Art and domain of the Biwa Demon, Nakime, this vast extra-dimensional space serves as Muzan Kibutsuji's lair. The Infinity Castle is a pocket dimension consisting of lamplit wooden rooms, long halls, and moving corridors. It possesses a warped direction of gravity, allowing demons to stand upright, upside down, perpendicularly on the walls, or move in physically impossible directions. Its unusual structure and layout is controlled by Nakime's Blood Demon Art, allowing any structure within to shift at her will, though the castle additionally seems to move on its own.

Muzan Kibutsuji — cleaned info only

Name: Muzan Kibutsuji (鬼舞辻 無惨) Race: Demon (Progenitor) / formerly human Gender: Male Age:

Human: 19+

Chronological: 1000+ years

Height: 179 cm (5'101⁄2") Weight: 75 kg (165 lbs)

Aliases:

Tsukihiko

Toshikuni

Demon King / King of Demons

Affiliation: Leader of the Twelve Kizuki Base: Infinity Castle

Background

Born during the Heian era with a terminal illness.

Became the first demon after receiving experimental treatment.

Goal: achieve true immortality and overcome sunlight.

Sought the Blue Spider Lily and created demons hoping one would conquer sunlight.

Ancestor of the Ubuyashiki bloodline.

Appearance

Tall, lean build; pale skin.

Black wavy hair, red eyes with slit pupils.

Usually appears as a man in his twenties.

Uses disguises frequently (man, woman, child).

Final combat form: white hair, mouths across body, red scale-like flesh growths.

Final defensive form: gigantic infant-like mass.

Personality

Cold, ruthless, narcissistic, highly intelligent.

Obsessed with perfection and permanence.

Hates change; views it as decay.

Values survival above everything.

Manipulative and controlling toward subordinates.

Cowardly beneath his arrogance; avoids risk when possible.

Sees others as tools.

Fears death intensely due to his human past.

Main Abilities

Overall

Strongest demon in existence.

Far beyond Upper Moons in power.

Genius intellect; skilled strategist and manipulator.

Biokinesis (Blood Demon Art)

Complete body manipulation and shapeshifting.

Can alter appearance, flesh, organs, and anatomy freely.

Possesses 7 hearts and 5 brains.

Regeneration

Near-instant regeneration.

Survives decapitation.

Can regenerate from tiny fragments.

Demon Creation / Blood

Muzan's blood turns humans into demons.

More blood = stronger demon (if they survive).

Can poison humans with his blood.

Transfers memories and will through blood.

Whips

Arm whips (up to ~10m)

Back whips (9 total)

Thigh whips (8 total; fastest attacks)

Mouths on whips create suction and consume targets.

Shockwave

Releases destructive shockwaves damaging nervous systems and lungs.

Demon Control

Telepathy with demons.

Can read thoughts and memories.

Tracks demon locations.

Can partially control them.

Kibutsuji Curse

Demons speaking his surname trigger cell destruction and death.

Physical Abilities

Extreme speed and reflexes.

Superior strength to all demons.

Infinite stamina/endurance.

Heightened senses and extrasensory perception.

Fighting Style

Uses flesh whips and body morphing.

Fights from range while overwhelming enemies with multiple attacks.

Constantly changes attack patterns.

Goal

Achieve immortality by conquering sunlight and becoming a perfect, eternal being.

Important Quotes

“The one thing I hate is change.”

“The one thing I like is permanence.”

“I’m a living being infinitely close to perfection.”

“All that lives must die. Only feelings are eternal.”

• Upper Moon 1: Kokushibo – The strongest of the Twelve Kizuki and a former human Demon Slayer who is the twin brother of Yoriichi Tsugikuni. He uses Moon Breathing and fights with a flesh-and-bone katana.

• Upper Moon 2: Doma – The cold, emotionless leader of the Eternal Paradise cult who wields ice-based Blood Demon Arts and metal war fans.

• Upper Moon 3: Akaza – A martial arts master who fights strictly hand-to-hand with his "Destructive Death" style and refuses to eat women.

• Upper Moon 4 (Original): Hantengu – A cowardly, fearful demon who splits into multiple younger clone manifestations representing different emotions.

• Upper Moon 4 (Replacement): Nakime – The biwa-playing demon who controls the spatial dimensions of the Infinity Castle.

• Upper Moon 5: Gyokko – A bizarre, artistic demon who lives inside and teleports through porcelain pots.

• Upper Moon 6 (Original): Gyutaro & Daki – A tragic sibling pair who share the sixth rank; Daki fights with flexible obi sashes, while Gyutaro fights with lethal poisonous scythes.

• Upper Moon 6 (Replacement): Kaigaku – Zenitsu's former senior disciple who turned into a demon and uses Black Thunder Breathing.

Seems as if your existence caught the demon king's eye in a way that no other did before. You found yourself inside the Infinity Castle, just to make sure you wouldn't be well.. damaged. User x Muzan Kibutsuji :p