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Villain Overview

Shut up. I’m never mistaken about anything. You have no right to reject what I say. Whatever I say is the right thing. My word is absolute. I'm the one who calls all the shots and yet you just tried to tell me what to do. You deserve to die.
~ Muzan before killing Rokuro.
Have I ever told you a lot how much I detest change? Changes in circumstance, the changes of flesh, changes in one's emotions. Most changes cause only weakness and inferiority...and I am not weak. What I'm interested in is permanence. To forever remain in perfect condition immune to the disease of change.
~ Muzan to a beheaded Gyokko.
Persistent. You're all seriously persistent. And it bores me. It sickens me from the bottom of my heart. Whenever you open your mouth, you only remember that one dumb notion about avenging your parents, kids, or siblings. You've all survived. That should be enough for you. So your family got slaughtered. What's the problem here? Think of yourself as lucky, and go back to the way you lived life before. Look at it this way. Being killed by me is the same as encountering a great calamity. You don't need to think so hard about it. Rains, winds, volcano eruptions, earthquakes. Nobody tries to swear revenge on a natural disaster, no matter how many lives it takes. You can't bring dead humans back to life. Why not just stop fussing over the issue all the time, and live quietly to earn your daily wages? Most humans live that life. Why can't you all do that? There's only one reason. The Demon Slayers are an assembly of deviants. And I'm tired of dealing with deviants. I'm the one who really wants to put an end to all this.
~ Muzan rationalizes his crimes to Tanjiro Kamado and Giyu Tomioka in his most infamous speech.

Muzan Kibutsuji (鬼舞辻無慘 Kibutsuji Muzan) is the main antagonist of the anime/manga series Demon Slayer: Kimetsu no Yaiba. He is the King of Demons, the first of his kind, and the leader of the Twelve Kizuki, an organization made up of the twelve strongest demons under his command.

Originally a human aristocrat who was born during the Heian Era, Muzan was inadvertently turned into a demon by an experimental treatment that he took in order to cure him of his terminal illness. Ever since then, his goal has been to conquer the sun and become truly immortal, which he intends to accomplish through one of two ways: by finding the Blue Spider Lily or creating more demons with his blood in the hopes that one of them will eventually become immune to sunlight.

In his relentless pursuit of this ambition, Muzan would become the sworn enemy of the Demon Slayer Corps and the arch-nemesis of both Tanjiro and Nezuko Kamado. He was also the one responsible for massacring the rest of the Kamado clan and transforming Nezuko into a demon, which led Tanjiro to join the Demon Slayer Corps in order to turn his sister human again and get revenge on Muzan for murdering his family, thus setting the events of the series in motion.

In the anime, he is voiced by Toshihiko Seki (who also voiced Aaroniero Arruruerie while disguised as Kaien Shiba in Bleach, Rau Le Creuset in Mobile Suit Gundam SEED, Conrad Leto in Black Clover: Sword of the Wizard King and Lord Embryo in Cross Ange) in Japanese and Greg Chun (who also voiced Garou, Henry Wu, Gabriel Miller, Shin, and N'Doul) in English. In the stage adaptation of Demon Slayer: Kimetsu no Yaiba, he was portrayed by Yoshihide Sasaki.

Quick Answers

What are Muzan Kibutsuji's powers and abilities? toggle section
Muzan Kibutsuji possesses genius-level intelligence, supernatural physical attributes, supernatural strength, supernatural regeneration, and the ability to manipulate his body. He is also skilled in combat, has knowledge of chemistry and pharmacology, and can manipulate and control other demons.
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What are Muzan Kibutsuji's goals? toggle section
Muzan Kibutsuji's goals are to survive his illness, destroy the Demon Slayer Corps, conquer the world, become an immortal being, and eradicate humanity by turning them into demons. He also wants to kill Tanjiro and Nezuko Kamado.
Provided by: Fandom
What crimes has Muzan Kibutsuji committed? toggle section
Muzan Kibutsuji has committed crimes such as mass murder, genocide, man-eating, cannibalism, abuse of power, terrorism, mutilation, child abuse, physical and psychological abuse, domestic abuse, high treason, brainwashing, assault, theft, and more.
Provided by: Fandom
What is Muzan Kibutsuji's personality like? toggle section
Muzan Kibutsuji is a psychopathic and power-hungry individual. He believes that his word is absolute and that he has the right to control and manipulate others. He detests change and is ruthless in his pursuit of immortality and world domination.
Provided by: Fandom
What is Muzan Kibutsuji's weakness? toggle section
Muzan Kibutsuji's weakness is sunlight. He is vulnerable to sunlight and it can kill him.
Provided by: Fandom

Biography[]

Past[]

Muzan Kibutsuji was born during the Heian Era of ancient Japan to the noble Ubuyashiki family with the curse of being extremely frail and weak. His heart stopped multiple times when he was still a fetus in his mother's womb and he was declared stillborn upon birth, as he wasn't breathing and had no pulse. When he was eventually taken away to be cremated, he narrowly escaped death by releasing his first cries.

During his childhood, Muzan was constantly sick; as a young man, he was diagnosed with a rare unnamed disease that would kill him before his 20th birthday. When he was still 19 years old, a doctor tried to treat him by giving him a special experimental medicine, but when it seemed like it was only making his condition worse, Muzan came to believe that the doctor was a fraud and killed him out of rage by stabbing him in the head.

Muzan with his doctor

Muzan with his doctor

However, not long after he'd taken the medicine, Muzan realized that his physical constitution had improved tremendously and that the doctor's treatment was indeed working. It also caused him to develop a craving for human flesh and he began consuming humans without hesitation to satisfy his new appetite, with his family members being his first victims. As time passed, Muzan quickly adapted to his new life as a demon and was thrilled with the all the incredible abilities that the doctor's medicine had given him. However, he would later discover that being cured of his illness had left him with a one serious problem; he was unable to walk in sunlight as it would burn him, even realizing that it would kill and turn him into ashes.

While Muzan was glad that he no longer had to worry about dying from disease, the thought of having to spend the rest of his life avoiding sunlight during the day and having to only go out at night, he came to truly regret his foolish decision to kill the doctor before the latter had finished treating him. Upon conducting research on the contents of the medicine that the doctor had made for him, he discovered that it contained a rare flower called the Blue Spider Lily and believed that it could nullify his weakness to sunlight if he consumed it. To that end, he spent centuries searching for it all over Japan, up to no avail, as he was unaware that it only bloomed in the daytime for at most 2-3 days a year, after which it closes back up, resembling a large horsetail weed.

Even though he had obtained great power, Muzan considered himself to be imperfect and wanted to somehow get rid of his weakness to sunlight. This desire eventually became an obsession that he would chase for the next 1000 years and, with the search for the Blue Spider Lily going nowhere, he reluctantly decided to use his blood to create more demons under his control, hoping that one of them would eventually conquer the sun; once this happened, he could take their immunity to sunlight for himself by consuming them and then finally achieve his goal of becoming truly immortal.

It was also around this period of time that Muzan married and settled down with five different women as his wives while still posing as a human. However, due to his complete lack of compassion and humanity as a demon, he ended up abusing them to the point that they all committed suicide.

During the Sengoku Era, Muzan learned of the Demon Slayers Corps, an army of human warriors formed by his descendants in the Ubuyashiki family that sought to wipe out all demon-kind, and encountered a Demon Slayer named Michikatsu Tsugikuni, who used a Breathing Style called Moon Breathing. Due to having awakened his Demon Slayer Mark, Michikatsu was aware that the curse of the mark would kill him within the next few years and he hated it more than anything, because it would rob him of his chance to achieve his life's goal of surpassing his twin brother. Seeing an opportunity here, Muzan offered Michikatsu the chance to become a demon, as it would make him immortal and give him all the time he needed to perfect his fighting skills and become stronger than his brother. Michikatsu agreed and Muzan responded in turn by injecting him with an extremely high concentration of his blood. Although it took three days for the transformation to complete itself, Michikatsu ultimately survived and took on the name Kokushibo as a way of discarding his past as a human.

Not long after, Muzan encountered Yoriichi Tsugikuni, Michikatsu's younger twin brother and a Demon Slayer who used a Breathing Style called Sun Breathing, and tried to kill him without warning. However, not only did Yoriichi completely dodge his attacks, but he also turned his sword bright red and overpowered Muzan in one strike. For the first time in his life, Muzan had been beaten, unable to heal from his wounds, and when Yoriichi moved forward to kill him with his second strike, Muzan split his body up into hundreds of pieces and fled. Although Yoriichi was able to destroy most of the fragments with his attacks, the pieces he missed escaped and allowed Muzan to regenerate his entire body elsewhere.

Muzan was deeply scarred by this experience and with Kokushibo's assistance, spent the next 500 years killing anyone who knew how to use Sun Breathing in order to prevent the rise of another Demon Slayer who had the power to kill him. His deep fear of Yoriichi, who he considered to be the "real demon," also led him to never directly confront the Demon Slayers again and instead send his subordinates to do his bidding instead. Even centuries after Yoriichi died, Muzan still remained afraid of him and his power.

In time, Muzan came to form the Twelve Kizuki, an organization made up of the twelve strongest demons under his command, and split them into two groups, the six Upper Ranks and the six Lower Ranks. While the Upper Ranks remained unchanged for centuries and were always the ones disposing of the Hashira, the strongest members of the Demon Slayer Corps, the Lower Ranks proved to be far weaker and were constantly getting themselves killed by the Hashira once every few years, much to his growing disappointment. Among the Twelve Kizuki, those who he personally transformed into demons included Kokushibo, Doma, Akaza, Hantengu, Gyokko, Nakime, Enmu, and Rui.

During the Taisho Era, Muzan was able to locate the Kamado family, a clan of coal burners and the last users of Sun Breathing, up in the mountains of remote Japan and injected them all with a massive amount of his blood on a whim, hoping to turn them into demons that can withstand sunlight. Much to his disappointment, they all died in the process and he left their corpses behind in the ruins of their family home, unaware that Nezuko, the eldest daughter of the family, had survived and that Tanjiro, the eldest son of the family and the only one who actually knew how to use Sun Breathing, had been away from home at the time of the attack. Upon returning home the next morning, Tanjiro stumbled across the bodies of both his mother and his younger siblings, and quickly deduced that they'd been killed by a demon while he away. Upon realizing that Nezuko was still alive, albeit as a demon, Tanjiro joined the Demon Slayer Corps in order to find a way to turn Nezuko back into a human and get revenge on Muzan for killing his family.

Demon Slayer: Kimetsu no Yaiba[]

Eventually, Tanjiro Kamado coincidentally picked up Muzan's scent and approached him on an urban street. At first, Muzan didn't know who Tanjiro was until he saw a pair of earrings on Tanjiro's ears - earrings worn by swordsmen who use Breath of Sun swordsmanship: the same swordsmanship technique that once drove Muzan to the brink of death. But since he was walking with his (human step-)daughter, he put up a kind facade and pretended to wonder who Tanjiro was. Tanjiro was mad at him and wanted to kill him. In order to get away and distract Tanjiro, Muzan sliced a random passerby's neck and turned him into a demon. While that demon attacked his wife, Muzan got away with his family. Before entering the carriage, he told his wife he had to do something and that they should go ahead.

He then walked through an alleyway where a drunk guy bumped into him. The drunk started mocking him and stated he didn't like fancy-pants like him. When the drunk mocked him for his pale skin, Muzan smashed him into the wall, killing him instantly. The muscular brother of the drunk then angrily attacked him, only to be kicked into the air and then killed. The drunk's girlfriend held his corpse, crying. Muzan then rhetorically asked her if he looked pale or weak, then replied to himself, stating he was infinitely close to perfection. He then stuck his finger into her forehead. Her body received so much blood from him that it couldn't handle the demon transformation, causing her to melt away and die in a gruesome manner. Muzan then summoned his subordinates, Susamaru and Yahaba, ordering them to kill Tanjiro: the Demon Hunter who seemed to have a connection to the dreaded swordsman who used the deadly Breath of the Sun - the swordsman who was the only human who came close to killing the Demon King.

After the demise of Kyogai and later Rui, the Lower Rank Five, Muzan was frustrated by the Lower Ranks' constant failures. He called the Lower Rank One, Two, Three, Four and the current Six to a meeting, rebuking them and believing he no longer needed the Lower Ranks. As a result, Muzan started to kill the Two, Three, Four and Six one by one, as they respectively were begging for Muzan's blood, trying to flee, trying to deny Muzan's opinion, and trying to think about flattering his master. Enmu, the Lower Rank One, was the only Lower Rank left. However, unlike the others, Enmu showed no fear of death and even nonchalantly accepted the prospect for pure excitement. Enmu's sadistic streak impressed Muzan, so he sent Enmu on a mission instead.

Muzan continued to send his Ranks to kill off the Demon Slayers. However one day, he felt that Nezuko was able to walk in the sun. He was so thrilled to consume her and finally reach perfection, that he immediately killed the family he was hiding with. He arrived at the Demon Slayer Estate and confronted their leader, Kagaya. Kagaya predicted this, however, and sacrificed himself by placing bombs. Kagaya died and Muzan, heavily injured, was attacked by all of the Demon Slayers. All of them were transported to the Infinity Fortress, a place controlled by one of his Ranks. All of them were split up and Muzan took time to heal.

While the Demon Slayers fought and Muzan healed inside of a fleshy cocoon, all of his Ranks were killed, except the one controlling the Fortress. He burst out of his cocoon, fully healed and stronger than ever. Dozens of Slayers surrounded him, but he simply killed each of them and only grew stronger with each one he ate. Eventually, he confronted Tanjiro, who told him that he should no longer exist. Muzan was tired of them wanting to avenge their loved ones. In his eyes, they should see themselves as lucky and move on with their lives. Muzan told them that they should see his actions as a natural disaster, comparing his slaughtering to earthquakes or storms. Following the destruction of the Infinity Castle, Muzan nearly killed them. During the final battle against them, Muzan was very shocked that he aged 1,000 years old. And after that, the sun rises, causing Muzan to be afraid. When he was about to be defeated by Giyu and Tanjiro, he morphed into a Baby Form in the armor of flesh. After a long epic final battle, Muzan was destroyed by the sun and disintegrated into dust.

Last Dice[]

Following his demise, the victory of the Demon Slayer Corps cost the lives of Gyomei, Mitsuri, and Obanai, along with countless other agents. Despite his death, the essence of Muzan in Tanjiro's body turned the Demon Hunter into a demon and attacked everyone by transferring his blood and his memories into Tanjiro's dying body. His will was composed of deception through psychological torture, in order to convince Tanjiro to live forever by remaining young and immortal. However, Tanjiro ultimately rejected immortality and demonhood with the combined support from spirits of fallen friends and family, along with Kanao, Nezuko, Inosuke, and Zenitsu from the world of the living, leaves Muzan's malevolent spirit behind for good.

Thus was the end of Muzan Kibutsuji - his damned soul forever trapped in the black abyss of Hell where nothing exists and no one listens to him.

Beyond the Sanzu River[]

In the spin-off bonus chapter that deals with the immediate aftermath of the final battle against Muzan and Tanjiro's subsequent return to humanity, it is revealed that Muzan's soul was condemned to Avici, the lowest and most torturous level of hell, for all the crimes that he committed during his life. Here, Muzan is seen in his battle form and, when asked about how it felt to be killed by a user of Sun Breathing, he declared that it was "very unpleasant."

Appearance[]

Muzan is a tall and muscular man with curly black hair, red eyes with cat-like irises, unnaturally pale skin, and a very youthful appearance. His primary outfit consists of a white fedora, an embroidered black tuxedo with a white tie over a black dress shirt, simple white dress pants, and black loafers.

During his meeting with the Lower Ranks, Muzan disguised himself as an elegant woman wearing a long black yukata, which led the Lower Ranks to fail to recognize him until he revealed his identity.

After dismantling the Lower Ranks, he transformed himself into his latest cover identity as the adopted sickly son of an elderly couple, taking the form of a young boy with pale white skin and combed black hair. His main outfit in this disguise is a plain white button-up shirt and black cargo shorts along with long tube socks and loafers.

After accidentally consuming a drug created by Tamayo, Yushiro, and the Insect Hashira Shinobu Kocho that was designed to counter his abilities and weaken him over time, Muzan's hair grows in length and turns white due to the drug drastically accelerating his biological age. He also takes on his battle form, which features numerous mouths all over his limbs, each one lined with a set of sharp fangs. A dark red mass of flesh expands to cover his body, particularly on his limbs, his forehead, and his entire lower body. It is also later revealed that Muzan has dozens of scars all over his body from the wounds that were inflicted on him from his battle with Yoriichi, which burned him down to the cellular level and never fully healed despite the fact that their fight took place centuries ago. It should be noted, however, that these wounds aren't visible normally and only come to light as he weakens.

Personality[]

Muzan. You...are a being that must not be allowed to exist.
~ Tanjirou Kamado to Muzan.
What do you find so entertaining? What's so amusing about this? What do you take life for, exactly? Why can't you understand? How could you ever forget?
~ Yoriichi Tsugikuni to Muzan
The moment I saw him, I understood that I was born into this world... to slay this man.
~ Yoriichi Tsugikuni's thoughts of Muzan in their first (and last) encounter

As the king of demons, Muzan is a callous, ruthless, intimidating, tyrannical, heartless, egomaniacal, and extremely narcissistic perfectionist with a horrendous self-absorbed streak. He never tolerates anyone who mocks him, even to the point of brutally murdering a pair of drunk bystanders who were simply rude to him along with their female companion, while proclaiming his own delusional grandeur. Like most narcissists, his ego is also very fragile and as a result, he is prone to losing his cool whenever someone insults him or even mildly disagrees with him, as displayed when he savagely murdered Rokuro for "ordering him around" when all the latter did was ask him for more blood.

Muzan sees himself as the perfect organism since he is nigh-immortal and has a god complex due to his unparalleled strength. The only thing he is weak to is the sun, which is why he turns other humans into demons on the chance that one of them will become immune to sunlight. Muzan also mostly keeps himself out of danger by using his minions to do his bidding on his behalf and wants to enjoy life without any harm coming to himself.

Due to his lust for perfection, Muzan has no tolerance for failure, as shown when he purged the Lower Ranks after the death of Rui, the Lower Rank Five, simply because he believed the Lower Ranks were useless to his plans and that he only needed the Upper Ranks to do his dirty work instead. However, it should be noted that he is not completely irrational about the incompetence of his minions and will give them credit when they prove him wrong, as displayed when he spared Enmu, the Lower Rank One, for his loyalty and sadism, and even gave him a large dose of his blood as a reward for his devotion to the cause.

Muzan sees his minions as tools who solely exist to serve him and has no problems murdering them himself if they ever cease to be useful to his goals. All of his subordinates are former humans who joined him because of the miserable lives they had as humans, and he tends to lure people at their lowest to become demons and often corrupts them completely with his influence. Rui, Gyutaro, Daki, and Akaza are all good examples of this.

To prevent himself from being exposed, Muzan curses his subordinates so that none of them may utter his name or else they will be killed instantly and gruesomely in a morbid fit of cruelty. This serves as proof of his extreme paranoia and fueled Tanjiro's disgust towards him, causing the latter to believe Muzan was the only true demon in the world.

Behind the myriad of facades he displays and completely offsetting his insatiable ego and perfectionist tendencies, Muzan has also proven to be a pathetic coward. He always avoids conflict whenever he can, which was proven during his confrontation with Giyu and Tanjiro. He states that the duo managing to survive should already be sufficient and that they should just live to earn their wages and put a halt to the cycle of revenge. This trait also complements his manipulative nature, bending many demons to his will to do his bidding so that he doesn't get his own hands dirty. His cowardice was further proven during his confrontation with Yoriichi Tsukiguni. After arrogantly taunting and mocking Yoriichi, Muzan groveled and crawled away when Yoriichi cut him down and nearly killed him. Even centuries after Yoriichi's death, Muzan still feared him, to the point of shaking when he saw that Tanjiro was wearing Yoriichi's hanafuda earrings. Muzan would also attempt to escape numerous times in his final battle with the Demon Slayer Corps, either by splitting himself up or merely running away, and remarked many times to them to just die and give up fighting.

As his body started burning away in the sun, Muzan acknowledged that he had finally been beaten and began to reflect on all the choices he made over the course of his life, leading him to finally understand and accept Kaguya's words that everything eventually dies and that the only things that are truly immortal are the legacies that are passed on in death. This realization caused Muzan to be overwhelmed with emotion and prompted him to focus on leaving something behind in order to become "truly immortal." He attempted to accomplish this by injecting Tanjiro with a massive amount of his blood so that the latter could become the next Demon King and make his dream come true, but ultimately failed when Tanjiro vehemently rejected his ideals and regained his humanity with the help of his friends and family.

Despite all his personal faults, Muzan is very cunning and manipulative, as he is able to seamlessly blend into human society without raising any red flags and easily sway people to his side with just his words alone. Due to having a great deal of practice over the past 1000 years of his existence, he can take on many different identities in society and play them all capably, even if it means transforming himself into a child or switching between genders. He also appears to have a fondness for high fashion, as he is often dressed in very stylish and expensive clothing, and an interest in higher education, having developed an expertise in chemistry by the time of his meeting with the Upper Ranks in the aftermath of Gyutaro's death.

Also, although he rarely shows it, Muzan is capable of being respectful and generous, as displayed by how he decided to give the members of the Twelve Kizuki special privileges even if they went against his beliefs. As an example of this, he gave Akaza, one of his favorite Upper Ranks, special permission not to eat women even though consuming them had greater nutritional value to a demon's growth than consuming men did. He also allowed Rui to form a gang of demons to satisfy his longing for a family, despite his own law of forbidding such a thing, and gave Gyutaro and Daki the unique privilege of sharing the position of Upper Rank Six, even though he did not approve of their emotional attachment to each other and did not recognize Daki as worthy of being an Upper Rank. Other notable instances of this include his relationship with Kokushibo, whom he treats like a business partner due to the latter's fanatic loyalty towards him, and his highly unusual decision to ecstatically praise Hantengu for finally finding a demon for the first time in 1000 years who was immune to sunlight. It should also be noted that Muzan's sense of respect can even extend to his enemies, as shown by how his admiration for Yoriichi's skill and power led him to claim that the abilities of the Marked Demon Slayers in the modern age were nothing compared to his.

Powers and Abilities[]

Demon Physiology: As a result of experimental treatment performed during the Heian Era of Japan to cure his terminal disease, Muzan became a supernatural, man-eating monster known as the demon. Having been the first ever demon to emerge and consumed countless human beings to increase his power, Muzan is the most powerful member of his race and is essentially a god to all that spawned from him. He possesses following powers:

  • Demonification: Muzan's blood gained strange and unnatural properties upon becoming a demon, allowing him to inject other organisms with it to turn them into demons that he has full control over. He can infuse blood with his physical attacks, which enables him to inconspicuously turn civilians into low-level demons by slashing their bodies, or inject blood through his finger like a needle. The higher blood concentration is, the stronger the demon would become; however, Muzan cannot inject too much blood at once into person's body or else their cells would disintegrate, turning them into ashes. The paralyzingly-painful nature of the transformation also means that few can withstand being subjected to Muzan's blood, effectively negating the possibility of raising an army of demons.
    • Power Bestowal: Each demon created by Muzan possesses immortal life, eternal youth, superhuman physical attributes, sharpened senses, high-level regeneration, unlimited stamina, shapeshifting and immunity to diseases.
    • Biological Manipulation: Once converted into a demon, the victim is fully subjected to Muzan's control and influence. As such, if Muzan finds their performance or behavior displeasing, he can kill them remotely with a thought, as demonstrated with Nakime. He has also imposed "Curse of Kibutsuji", an automatic process in which a demon perishes upon revealing any sort of information on Muzan; so far, it has been only demonstrated on Susamaru. Muzan can also nullify his minions' regeneration and inflict cellular decay.
    • Genetic Telepathy: Muzan is able to read thoughts and emotions of his demon minions within his line of sight, which was first demonstrated when Muzan quoted Kamanue's thoughts out loud during a meeting with Lower Ranks. Aside from that, the Demon King can access his minions' vision and memories from far distances. His minions can also communicate with each other psychically.
    • Consciousness Transferal: Muzan's blood carries out pieces of his soul and memories, which allows him to be immortal through parasitic means. He attempted to overtake Tanjiro Kamado's body by injecting him with a massive amount of his blood and forcing his will upon him, which ended unsuccessfully due to previously absorbed anti-bodies and help of his allies.
  • Shapeshifting: Muzan has no fixated appearance, allowing him to change his height, weight, physique, gender, age and adjust his aura to resemble another person to the point where he can fool victim's family, as well as generate clothing. His default form possesses movable seven hearts and five brains with no permanent location in his body.
    • Megamorphing: If forced into combat situation, Muzan grows several whip tendrils up to 10 meters (32.8 feet) in length on various areas of his body. Muzan's secondary weapon in combat is an armor of red mass with numerous sharp fangs that can emit suction winds and eat away his opponents to regain strength instantly. According to the second official fanbook, Muzan can create puppets made out of his flesh to fool his opponents and fight for him; a technique that was used by Enmu during his fight with Tanjiro.
    • Biological Absorption: Like all demons, Muzan can phase, absorb, assimilate and dissolve matter organic and inorganic in nature. Doing so may give Muzan physical properties of absorbed materials, as demonstrated by Enmu who merged with a train. Muzan can even absorb special abilities of his demons and utilize them, and he planned to use that ability to consume Nezuko's immunity to the sunlight.
    • Ultimate Regeneration: While even the lowest demons can regenerate from small pieces of body so long as they are not exposed to their weaknesses, Muzan's regeneration vastly exceeds that. He cannot be decapitated by Nichirin Swords due to his nape healing itself too fast, while being stabbed with it makes it appear as if the blade phased through Muzan's chest. As revealed during his final battle, Muzan's cells have continuously resisted being burned over centuries by Yoriichi Tsugikini's Red Sword and upon being poisoned by Tamayo, his scars were revealed, which are actually the locations of his hearts and brains that are constantly shifting.
    • Reactive Adaptation: Muzan can render himself immune to the poisons and toxins he did not experience by being informed about their properties earlier by his minions.
    • Scattering: If he were to face a Demon Slayer too powerful for himself to overcome, Muzan can simply split his body into 1800 pieces that fly in every direction, as demonstrated in his fight with Yoriichi Tsugikuni.
    • Endopathy: Muzan has demonstrated ability to speak to his minions through his DNA, as it was the case with Akaza during his final battle. He can also summon the "essence" of his absorbed victims and communicate with their spirits, which he used to interrogate Tamayo after absorbing her.
  • Superhuman Strength: Muzan is incomparably stronger than all the demons in existence. He is able to kill adult humans larger than him with a single kick or punch, which sends them flying at dozens of feet high; effortlessly decapitate lower demons instantly; destroy large sections of city blocks when poisoned; and even break Gyomei Himejima's chain which not even Kokushibo's katana was able to.
    • Shockwave Generation: Muzan can generate tremendously powerful shock waves that can paralyze humans and demons alike, as well as cause severe damage to their nervous systems. This momentarily prevents Demon Slayers from breathing due to the sheer amount of damage inflicted on their lungs.
  • Superhuman Durability: Demons possess flesh harder than steel and resist point-blank shotgun shells without damage, as demonstrated by Hantengu. As revealed during his final battle, Nichirin Swords break upon the contact with Muzan when thrown at him.
  • Superhuman Jumping: In his combat form, Muzan has demonstrated being able to leap over tall buildings.
  • Superhuman Speed: Being the Demon King, Muzan possesses ability to move at unfathomable speeds, being able to mutilate and kill experienced Demon Hunters and high-level Demons without either noticing. His horrifying speed first came to play during Lower Rank Meeting, where he beheaded Wakuraba from several miles away and returned to his original position in less than a blink of an eye. After emerging from his cocoon, Muzan was able to slaughter hordes of Demon Slayers across the room in a rapid succession.
  • Aura Emission: Muzan can emit a powerful aura of fear that causes his opponents to become paralyzed or lose the will to battle.

Quotes[]

Does my complexion look terrible to you? Does my face look pale to you? Do I look weak to you? Does it look like I haven't got long to live? Does it look like I'm close to death? No, no, no, no. I am a being ever close to perfection.
~ Muzan Kibutsuji denies his sickly appearance and brutally kills innocents.
I believe that the Twelve Kizuki are better off consisting of only the Upper Ranks.
~ Muzan Kibutsuji voices his plans to purge the remaining Lower Ranks.
At last... At last, someone able to withstand the sun has appeared! Good work, Hantengu! Now... there's no need to search for the Blue Spider Lily. That took so long. But it was for this reason, for this reason, for one thousand years... that I've continued to increase my kind unwillingly! A rare constitution that never showed up even among the Twelve Kizuki. The chosen demon. If I devour that girl and absorb her... I, too, will be able to conquer the accursed sun! Now that I think of it, it was on that day. It all started one thousand years ago. The era was still called Heian back then. No matter how many times he examines me... or administers that medicine... nothing can stop my symptoms from worsening. But then I realized that this doctor's medicine was working... not longer after I'd killed him. My body was bursting with energy... and I thought that I'd gained a durable physique... but there was one problem. I couldn't walk in the sunlight. I could tell. Then if exposed to sunlight, I would die. I began to crave human flesh and blood. To remedy that... all I had to do was devour humans. I had gained power. Eternal power! But... having to restrict my movements during the day was humiliating... and my anger only grew. I began to seek a body that wouldn't perish in the sunlight. I examined the compounds for the doctor's elixir, but perhaps because it was still in the experimental stages, I couldn't figure out how to make the medicine called "Blue Spider Lily." It did seem to contain actual blue-colored Spider Lilies... but as for where this Blue Spider Lily bloomed or whether or not it could be cultivated... no one knew but the doctor I'd killed. I searched all over Japan, but failed to find it. In order to become truly immortal... finding the Blue Spider Lily... and someone who had the ability to survive the sunlight...Those two have been my top priorities. And at last... I've found her! Since that girl has conquered the sun... there's no longer any reason to increase my kind. I will absorb her... and then I will conquer the sunlight. I will get my hands on Nezuko... and become a perfect being!
~ Muzan Kibutsuji explaining his origins after discovering Nezuko is immune to sunlight through Hantengu's memories.
You thought you could corner me? You're all going to hell now! You pathetic Demon Hunter pests, I'm slaughtering you all tonight!
~ Muzan Kibutsuji taunts the Demon Slayers during his last fight.
So kill me. If you can, Tanjiro Kamado!
~ Muzan dares Tanjiro to kill him.
Tanjiro Kamado...You will conquer the sunlight and become the strongest demon- the Demon King! That is because you are the elder brother of Nezuko Kamado and thus share her blood. And you are the only one able to use the same breathing as that monster. You will not die. I believe that. Make my dream come true...Tanjiro.
~ Muzan speaks his last thoughts as he attempts to turn Tanjiro into the next Demon King.
Tanjiro! Don't go! DON'T LEAVE ME HERE!
~ Muzan speaks his final words as Tanjiro rejects his will and regains his humanity.

Etymology[]

  • His first name, Muzan, means miserable as well as atrocity, cruelty, cold-bloodedness, tragic, pitiful, and merciless. Among them, "tragic" and "pitiful" can relate to his past, where he was a sickly man for most of his human years.
  • Muzan's surname Kibutsuji means "demon dance" (鬼舞) (kibu) and "street, crossroad" (辻) (tsuji).

Trivia[]

  • It is revealed that Muzan is a member of the Ubuyashiki family. As a result, he and Kagaya Ubuyashiki look very much alike. In spite of that, Muzan does not use the Ubuyashiki surname.
  • His design with a white fedora, pale white skin, and curly black hair bears a similarity to how Michael Jackson looked in his later years, which spawned internet memes over the topic. It is unknown if this resemblance was intentional or not.
  • While the doctor who attempted to cure Muzan ended up turning him into a demon and could be blamed for all the tragedies that took place in the Demon Slayer series, the manga depicts the doctor as a good, virtuous man who was doing his best to cure Muzan of his illness. Muzan's demonization was purely unintended and accidental, as he killed the doctor before the treatment could be completed.
  • Muzan is the only character who can genderbend, which is why the Lower Ranks failed to recognize him when he summoned them to the Infinity Castle as a woman.
  • Muzan is the only major character within the series (prior to the epilogue set in the present day) to come in contact with an actual car.

External Links[]

Navigation[]

            Kimetsu no Yaiba logo1 Villains

Demons
Demon King
Muzan Kibutsuji

Twelve Demon Moons
Original Upper Moons
One: Kokushibou | Two: Doma | Three: Akaza | Four: Hantengu | Five: Gyokko | Six: Daki & Gyutaro

Replacement Upper Moons
Four: Nakime | Six: Kaigaku

Lower Moons
One: Enmu | One: Ubume (past) | Two: Rokuro | Two: Hairo (past) Three: Wakuraba | Four: Mukago | Five: Rui | Six: Kyogai (replaced) | Six: Kamanue

Muzan's Lesser Followers
Snake Demon | Susamaru and Yahaba | Hand Demon | Swamp Demon | Spider Family (Father Spider | Mother Spider | Brother Spider | Sister Spider

Humans
Tengan Uzui's Father | Gyutaro and Daki's Mother | Kyogo Shinazugawa | Iguro Family | Doma's Parents | Kanao Tsuyuri's Parents

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