Muzan Kibutsuji, the primary antagonist of Demon Slayer, possesses seven hearts and five brains, making him an incredibly formidable and nearly invincible foe. This unique anatomy allows him to survive lethal attacks that would otherwise kill an ordinary demon.
Abilities. Demon Body: Unique from other demons, he possesses seven hearts, and five brains. These are responsible for his powerful vitality, should any of them be harmed, he will be severely weakened.
Also the reason why Nezuko was already so powerful is because Muzan injected tons of blood in her body and the others in hopes of creating a demon that could conquer the sun.
He is the 50th Pure Evil to be headlined. His counterpart in Demon Slayer Academy doesn't count as a PE because he has too many comedic moments.
Those who have watched the anime will know that Muzan turns into a woman in the second season. He keeps transforming in order to hide his true identity, and he's even known to change into an 11-year-old child to hide from Demon slayer.
Fun fact: Suma is canonically bisexual, making her the only known LGBTQ+ Demon Slayer character. : r/KimetsuNoYaiba.
Muzan has always been a rational character, but fans believe killing his doctor is the only time he regretted taking a life.
Even 400 years later, Muzan's fear of Yoriichi remained fully intact, as simply laying eyes on Tanjiro's hanafuda earrings caused him to recall their clash.
After accidentally consuming a drug created by Tamayo, Yushiro, and Shinobu that was deliberately 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.
After creating the first demon, Lilith, Lucifer created the four Princes of Hell as the first generation of demons aside from Lilith. Lucifer created them himself before the oceans drank Atlantis. These demons were Lucifer's rightful successors to the throne of Hell and acted as generals of the demonic forces.
One of the most emotional and saddest backstories of all is that of Gyomei Himejima, the Stone Hashira. He's not just the most powerful fighter in the Demon Slayer Corps. He's a person who had everything taken from him, long before he wielded a katana.
Muzan Kibutsuji: The ultimate unkillable demon king
Muzan's real scary gimmick isn't his power, but the fact that he can't die from a head cut-off. Even when the most powerful Hashira—Gyomei Himejima—does succeed in beheading him, Muzan absurdly regrows his head in an instant.
Now retired, Tengen Uzui was formerly the Sound Hashira within the Demon Slayer Corps. He is 23 years old, and his birthday is on October 31.
Before his physical death, Muzan, who was slightly crying tears after remembering Kagaya's words, was also able to transfer both his blood and his consciousness into Tanjiro's dying body, viewing the latter as the embodiment of Kagaya's final words and reviving him as the next Demon King who is immune to the sun and ...
During a meeting with the lower ranks, muzan disguised himself with a female form to lull the demons into a false sense of. Webhe can shapeshift, we see him in his normal muzan form, fem muzan, and child, plus we see him in the last episode of s3 literally shapeshift in front of us, going from his child.
Dabi's hair was dyed black before revealing his true identity.
Muzan is a cold-hearted, ruthless, intimidating, cruel and exceptionally intelligent megalomaniac. He sees no value in any humans he has encountered and shows little value in his own subordinates.
What really makes the earrings scary for Muzan is that he was under the impression that yoriichi died and left nothing behind to succeed him. Yoriichi mentions in a flashback that he failed in life and didn't accomplish anything he wanted to. Then these earrings appear on this boy.
Although they have never meet each other, after crossing paths with Muzan, Yoriichi immediately understood that he was born into this world to defeat this man. He senses Muzan's violent intent, comparing it to boiling magma from an erupting volcano, ready to consume everything in its path.
Tanjiro is not a Hashira within the Demon Slayer Corps. Officially, the highest rank he attains is Hinoe, the third highest position within the Corps.
Muzan was dead, almost all demons died with him. Yushiro is the only one who survived, he's a good demon tho. He was free from Muzan, that's why he was okay. Demon Slayer Corps were disbanded after the fight...
Muzan Kibutsuji's real name is Maikeru Jacksuno.