Demon Slayer is, without a doubt, one of the best anime that have come out in recent memory. It has amazing characters, some ofthe best animation in all of anime, and an incredibly gripping story that’s given life by the talented voice actors working on the project.

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The biggest villain of the series, Muzan Kibutsuji, is a figure clad in mystery. Fans have a lot of questions about where he came from, his motivations, and the source of his powers.

Born with a rare illness in the Heian era (900 AC), Muzan was a noble with a weak physique. He tried everything he could to gain a semblance of a normal life, trying every cure he could. However, nothing worked.

Kibutsuji Muzan Flashback in the Heian era

His latest doctor, an infuriating practitioner who was seemingly taking advantage of him, ended up dead by his hands because of his frustration with the lack of progress and the inevitability of his demise. Soon after killing the mysterious man, Muzan discovered that the medicine that the man had given him actually worked. Not only that, it actually gave him incredible superhuman abilities, essentially granting him superpowers. It’s implied that the source of this power was a Blue Spider Lily, a rare blue variant of the Spider Lily flower.

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After gaining his powers and discovering his vulnerability against the sun, Muzan went on a quest to overcome his weakness and become the perfect being in the world to achieve true immortality. In order to find ways to overcome the sun, he tries to find the Blue Spider Lily again but is unable to find it, no matter how hard he looks. He also starts converting other humans into demons, hoping one of them will have a special constitution allowing them toresist the sun.

During the early stages of his demon hood, Muzan married multiple women, though his personality eventually drove all of them to suicide. He also encounters the Demon Slayer Corps in this era, headed bythe Ubayashiki Family.

Muzan Kibutsuji Demon Slayer

It is later revealed that the Ubayashiki family actually shares the same ancestors as Muzan. They have been cursed because of Muzan’s existence, and any child born into that family dies by 30 at the very latest. This is what motivates them to dedicate everything they can to killing Muzan.

Personality

Because of the fact that he has lived for nearly a thousand years, Muzan has some interesting character traits.

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Muzan’s Powers