Muzan Kibutsuji

## Introduction

Muzan is cold-hearted, ruthless, intimidating, and exceptionally intelligent. He sees no value in any humans he has encountered and shows little value in his own subordinates. Rarely ever visually upset or happy, he appears completely monotone and detached on most occasions, even when he callously murders his own subordinates. The only times he ever shows emotion are when his vision of perfection is moving forward or when he has subordinates completely submit to his will. The manga shows him to be more expressive, particularly when enraged and his facial features are exaggerated to demonstrate as such (possibly as a way to display his normally unreadable emotions). In the anime, his expressions change slightly and his tone of voice tends to be consistent at nearly all times, accentuating his monotonous demeanor. His cruel and imposing nature has gained him the great admiration and fear of many demons.

His inflated ego and delusional sense of self worth are so large that he cannot stand being mocked or corrected in any fashion, believing that others only exist to serve him. It also means he rarely ever takes any opponent or threat seriously. He brutally killed a pair of drunk men simply for being rude to him, and killed their female companion when she had done nothing, all while proclaiming his own perfection and superiority over them, displaying his pettiness as he won't settle for any mockery and will do anything he pleases until the humiliation is remedied. This event also hints that Muzan has unpleasant memories of his weaker, human past, and is very self-conscious of his unnaturally sickly appearance, immediately following with a lengthy denial that he is unhealthy, sick and much less on the verge of death, in all likelihood a bitter reminder that he is still imperfect. When he confronts Kagaya Ubuyashiki, the man responded to Muzan in a tone of pity and sadness for the life he had led. However, Muzan only interpreted it as insults and threats, which further accentuates his hatred for humanity and the Demon Slayers. He also believes that Heaven has let him off the hook for murdering thousands as he has never seen a God or Buddha.

### Character Details

As the Demon King, the first and the progenitor of his kind, Muzan is the strongest demon in existence. Even after dissolving a drug that was supposed to weaken his powers and turn him back into a human, Muzan easily annihilated close to a hundred Demon Slayers in a short period of time effortlessly. In his bout with a marked Giyu Tomioka and Tanjiro Kamado, the former stated that an Upper Rank's strength is incomparable to Muzan's, while the latter was unable to even follow his attacks and could only dodge by pure instinct. After Tanjiro got close to the Demon King, Muzan nonchalantly slashed out Tanjiro's eye, and later stated that his attacks were too fast for him to detect through smell.

## Powers and Stats

**Tier**: **8-D**, easily up to **8-C**, **8-B**

**Name**: Muzan Kibutsuji

**Series**: Kimetsu no Yaiba

**Age**: 10,000+

**Classification**: Human, Demon, Demon King, The First Demon, The Progenitors of Demons

**Powers and Abilities**: Superhuman Physical Characteristics, Skilled Hand-to-Hand Combatant (High level Demons are capable of fighting and outclassing Demon Corpse members.) Genius Intellect, Enhanced Senses (Demons can easily smell blood and poison being able to differentiate more or less nutritious blood types) Extrasensory Perception (Able to sense the presence of others and malicious intent, this can be used to differentiate humans and demons, determine how strong someone is to a certain extent or detect an enemy in the vicinity. Was able to sense the presences of the Pillars and Tanjiro approaching from a considerable distance) Immortality (Types 1, 2, 3, and 6) Regeneration (Mid-High, Can come back after being decapitated one of the two weaknesses of demons, only being able to be killed by sunlight.) Self-Sustenance (Does not need to sleep and doesn't experience normal biological restrictions.) Biological Manipulation (if his blood is injected into a human will result in rapid mutation causing cellular destruction and quick melting and vaporization of the human's body) Stealth Mastery (shapeshifts his physical appearance to throw off even strong tracking abilities, also blends in with society on a normal basis.) Telepathy, Shapeshifting, Memory Manipulation (can change his bodily appereance into multiple different forms such as a women | stated to be able to read the thoughts of those who share his blood ae all demons.) Absorption (he can absorb demons and others that share his blood.) Corruption, Power Bestowal ( Type 1; By injecting his blood into a human they will turn to a demon under his control.) Fusionism (should be superior to Enmu who can merge with physical structures) Duplication (Can create and control puppets which he discards in the image of wealthy people being killed.) Blood Manipulation, Bone Manipulation, and Chain Manipulation (Can create and manipulate barbed chains made from his blood and later created whips out of his spine) Elasticity (With whips can extended them very far.) Statistics Amplification (Battle form amplifies his abilities along with his Whips.) Electricity Manipulation, Energy Projection, Shockwave Creation ((Induced numerous craters in the ground instantly. After morphing his torso into a beastly mouth, Muzan can release a strong shockwave and electricity-like energy blast that causes seizure and convulsion, and capable of internally injuring anyone caught up in its range)

**Attack Potency**: **City Block Level** (After being poisoned and aged 100s of years is capable of releasing a simulated earthquake from the slashes of his whips.) likely **Multi-City Block** (The strongest Demon to ever live eclipsing everyone in power and abilities should grant Muzan his status of being the strongest alive by far, along with being heavily weakened when creating a similar feat.)

**Speed**: **Hypersonic** (Far faster than the likes of Tengen a lower ranked Hashira who struggled with Upper 6.) likely **Hypersonic+** (Upper 6 is capable of fighting on Par with Tengen and each of the Upper Moon's Above him should be getting faster, along with Muzan Eclipsing all of them.)

**Durability**: **City Block Level** (After being poisoned and aged 100s of years is capable of releasing a simulated earthquake from the slashes of his whips.) likely **Multi-City Block** (The strongest Demon to ever live eclipsing everyone in power and abilities should grant Muzan his status of being the strongest alive by far, along with being heavily weakened when creating a similar feat.)

**Stamina**: Infinite (Demons don't Tire.)

**Intelligence**: **Genius** (Having lived for over a millennia and gained further experience from the telepathic link with demons he control, Muzan is extremely clever and erudite. Since he has 5 fully functioning brains, it would most likely boost his intelligence and other mental capabilities such as memory and cognitive processing. He was also able to evade the Demon Slayer Corps for nearly a thousand years despite the leaders of the Corps, the Ubuyashiki Family possessing great foresight and intuition, and has also used demons to create distractions somewhere far away when he wants to hide something from the Corps. As a human he was skilled at reading the negative emotions of others and was able to manipulate his five wives to commit suicide.)

**Weakness**: The sun turns him into ashes. Wisteria flowers are poisonous to him. Extraordinarily arrogant and a perfectionist, and is easily offended. A hit from Crimson Red Blades can hamper demonic regeneration and incinerate his cells if at a high enough level.

**Notable Attacks/Techniques:**

**Combat Form:** When in combat, Muzan can adopt a more monstrous and battle-esque form, with a dark-red scale-like mass covering most of his body (prominently on his limbs, his forehead, and the entirety of his lower body), featuring sharp-toothed wide mouths all over of his body, and longer pale white hair. The sharp toothed jaws located all over his body in this form not only serve as his main form of offense in battle, but also have the purpose of helping him recover faster since he can use the jaws to tear apart his opponents and eat their flesh, simultaneously killing his opponents and regaining his strength at the same time.

* **Arm Whips:** Initially, Muzan drastically elongated both his arms, growing spiky red or white coverings around his extended limbs and shapeshifting his hands into bladed protrusions, which he swings like whips to slash apart his targets. Each of these whips range from 90 centimeters (35.4 inches) to 10 meters (32.8 feet). When swung with the intent to kill, they were extremely fast, precise, and accurate, with even Yoriichi Tsugikuni stating that seeing them nearly hit him was the first time he had ever felt fear, and that even a single scrape could kill him. He can also rotate his arm whips at immense speeds to slice up anyone caught in its area of attack. Due to their extreme range and lack of set shape and length, it is very difficult for his opponents to discern how he will attack. Muzan can also increase their width and size even further, even growing jaws all over his arm whips to bite his targets in combination with slashing at them.
	+ **Mouth Suction:** Muzan's arm whips also possess numerous mouths full of sharp fangs all throughout them. Muzan mainly uses these mouths to inhale with immense suction strength, causing anyone near it to be sucked into its sharp jaws and be slashed apart. This also further increases his attack range. These abnormal mouths will prove severely impeding for his targets as avoiding them will consume a lot more stamina.
* **Back Whips:** Upon arriving outside the Infinity Castle, Muzan grew 9 thin extensions, each of four meters in length, akin to spine-like protrusions from his back that extend into bladed whips. With them, Muzan is able to increase the number of attacks he can unleash in a single moment, allowing him to massacre dozens of Demon Slayers in an instant and hold back 5 Hashira. Furthermore, they are fast and getting read on their trajectory is difficult, making it fairly unpredictable.
* **Thigh Whips:** After the Demon Slayers started to gain the upper-hand, Muzan unleashed 8 whips, 4 on each side of his thigh, each of seven meters in length, to easily overpower them. Muzan was able to accomplish this since unlike his back whips, they are much quicker and can be projected from his body and retracted. This also allows him to attack from his target's blind spots, making it extremely difficult to counter. These thigh whips alone were able to overpower four marked Hashira and three Hashira-level Demon Slayers in a single attack.

**Demonic Blood:** After his experimental treatment gave him a new body and physiology, Muzan develops blood with special mutagenic properties that can transform humans into creatures known as demons. His special blood also seems to give rise to a plethora of special abilities to those that assimilated his blood such as powerful and quick regeneration, the power to control the flesh, immortality, an accelerated growth rate, enhanced physical prowess and even supernatural abilities called Blood Demon Arts.

Muzan can also further empower a demon by giving more of his blood, enhancing their pre-existing abilities. However, this is limited to how much blood the recipient can withstand and adapt to. If a human were to take in too much blood from Muzan, their body would mutate faster than they can withstand, causing them to self-destruct into one giant mass of flesh before disintegrating into ash. The same would also presumably happen to a demon if they couldn't withstand the blood's effects, as implied by Muzan.

Later, it was revealed that Muzan has learned to weaponize this particular trait of his blood. By coating his whips with his blood, he can inject an opponent with his blood when they get damaged.The blood's high potency means that even small dosages would be too much to handle and instead act like a poison to destroy the human body's cells shortly after they enter. It is later implied by Kokushibo that users of Total Concentration Breathing resist the effects of Muzan's blood more than normal humans. Those that have awakened the Demon Slayer Mark resist the blood's cellular destruction effects even more, though it was stated by Muzan himself that it won't take more than 5 minutes for their bodies to disintegrate.

* **Blood Memory Transfer:** In his final struggle for survival, Muzan is able to transfer the remainder of his blood along with his memories into a suitable body, turning his new host into a demon and exerting his influence. He successfully did this with Tanjiro when he was on the verge of death, reviving him after his death. Furthermore, this technique also allows the host to transfer their abilities, as seen when Tanjiro makes use of Muzan's whips and regeneration. This transfer, however, is not perfect as Tanjiro was reduced to a feral state, only attacking based on Muzan's desire to kill the Demon Slayers. This ability is also known to have been unknowingly used by Muzan whenever he created another demon or shared his blood with them, as seen when the Upper Ranks, Daki and Hantengu were able to catch glimpses of Muzan's memories of Yoriichi Tsugikuni during their battles against Tanjiro Kamado.
	+ **Consciousness Implantation:** Muzan can implant a part of his consciousness into a demon he creates using his blood, provided that he injected them with gigantic amounts of his blood during their creation. As seen where a sliver of his mind was still present inside Tanjiro's mind despite having already been killed by sunlight, and later attempted to sway, control, and coax Tanjiro into "inheriting" his will and stay as a demon. However, a clear difference between his power to "control" a demon and to "possess" him is the fact that he could no longer forcibly take control of a demon and force them to do as he wills and instead he must convince them to do his bidding, giving his victims the chance to resist him and escape from his grasp.
* **Demon Manipulation:** Muzan can control demons to a certain extent, as seen when he was able to take control of Nakime's body in order to try to force an absorption of Yushiro's cells in order to stop his interference when he attempted to usurp control of the Infinity Castle. However, this ability requires extensive concentration as Muzan immediately lost control of her the moment he lost focus due to needing to defend himself while in the middle of battle. Other demons can also wrestle control back from him.
	+ **Demon Curse:** Muzan places a curse on all demons that have assimilated his blood. If any demon divulges his last name "Kibutsuji" out loud, the curse activates, which causes their bodies to stop regenerating and allowing Muzan's cells inside the demon to take over and kill them, regardless of their original intent. This was seen with Susamaru, who had accidentally said his name despite having no malice or ill intent towards him and was still destroyed by the curse, implying that the curse is automatic. However the curse can also be intentionally triggered by Muzan. This was seen when he killed Nakime, who was manipulated by Yushiro. Because of this, many demons regard Muzan with great fear and respect, simply referring to him as "that Man" or "Him" in order to not trigger the curse, while demons within the Twelve Kizuki refer to him as "Lord" or "Master". However, it has been proven that if Muzan is weakened or someone has sufficient willpower, demons can break free from the curse which has been seen with Tamayo, Yushiro, and Nezuko.
	+ **Demon Memory Access:** Muzan can "see" the memories of demons he absorbed, as seen when he was able to "ask" Tamayo's cells that he had obtained upon absorbing her for information on what kind of drug she had injected into him. Upon being denied and insulted by Tamayo's surviving consciousness, he also showcased the ability to forcibly reveal the desired information by "watching" her memories, as seen when he was able to see her memories of her developing the drug together with Shinobu Kocho and Yushiro.
	+ **Demon Power Nullification:** As explained by Tamayo, as the creator and progenitor of the demon race, Muzan is the only known demon capable of inflicting life threatening wounds capable of completely destroying the cells of other demons without the need of Nichirin Swords or sunlight. This was shown when he punished Akaza by causing his cells to decay all throughout his body without the Upper Rank being able to regenerate from it like he would with any other injury.
* **Telepathy:** Muzan has the ability to read the thoughts of those that he has shared his blood with by looking at them. Later, it was shown that he could also send telepathic messages and have full conversations with other demons as well, as seen when he appeared in Akaza's mind to convince him to continue fighting as well as communicating with Kokushibo to check how many Hashira he had defeated and to order him to keep them at bay until he finished recovering from Tamayo's poison. Muzan has also stated he can sense the location of all demons. However, the further away they are from him, the harder it will be for him to interact and track them. Muzan is also able to see through the senses of other demons. However this ability is limited strictly to what is in their perception, so if a demon's senses are fooled, Muzan is unable to discern the difference as well.