Muzan Kibutsuji is the villainous antagonist (the final boss) in the anime Demon Slayer. He is the father or progenitor of the 12 Demon Moons as well as the Ogre Oni that appear in the work. He is the one who ended the existence of Jirou Sumitane’s family members and is the one who draws Jirou Sumitane’s attention.

HISTORY Muzan Kibutsuji

He was born in an era that was peaceful and serene. He generally adopts the persona of a human and lives the life of humans. There are occasions where he appears as female. He treats his followers with coldness and kills all subordinate demons he dislikes. While he is the most powerful demon, he is not one to actively participate in battles.

In the case of the Lower Ranks, he executed all four of them without hesitation, with the exception of the one that reacted positively, and the final one was handed a “death sentence” of “reinforcement with his own blood” (or the death penalty if they can’t endure). 

He is extremely ruthless in his character. One thing you must be aware of is the fact that the Lower Ranks were not as shrewd in their thinking. So in comparison to Hibiki Kyoukai (formerly called Riku Roku in the Lower Ranks) with the perfect plan for breaking the deadlock, there’s a point that you cannot be adamant about being penalized. On the surface, he seems to appear to be a calm and composed individual, but in reality, he has tantrums and is a tangled mess. While he’s extremely strong according to his own words, “a creature that is as close to perfect as possible,” however, he has a shy side that isn’t as strong.

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SKILLS

ALL-VOLUNTEER FORCE

The first demon that ever existed and is the ancestor of all demons, Muzan Kibutsuji can be described as the most powerful demon that exists with a tremendous amount of strength and is able to easily defeat the Five Pillars of Itsutsu in a single attack against Shiratotan Taknjirou, Iino no Sukesuke, Zenzen Itsu and Kanawo. He later was in a position to almost kill Tanjirou by poisoning him in one attack and would have almost killed Mitsuri, an extremely powerful Hashira, if she had not been saved by her Demon Slayers. 

Should Gyoumei, Giyu, Sanemi and Obanai not have received the antidote from Chachamaru, the three would have fallen to the poison. After about 30 hours of combating Hashira, Muzan showed his leg whip and increased his attack speed rapidly and instantly beating his fatigued Demon Slayers. 

In the following days, it was apparent that Muzan began to slow down because of Tamayo’s aging potion and began to influence him throughout the fight. However, he was capable of defeating the Slayers without difficulty in the end and was able to gain an edge over Sumitanjirou during their fight, naming the Hihi Yobiko Yoboku.

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