Webwho is muzan kibutsuji in demon slayer? A millennium ago, during the heian era, muzan was turned into a demon during an experimental. Webdespite his fearsome reputation among slayers and demons alike, muzan had an illness that almost took his life in demon slayer, resulting in his intense fear of. Webmuzan kibutsuji (鬼 (き) 舞 (ぶ) 辻 (つじ) 無 (む) 惨 (ざん) , kibutsuji muzan?) is the main antagonist of demon slayer: He is the demon king, the progenitor of. Webmuzan’s demonic blood grants him special abilities beyond his blood demon art. Muzan kibutsuji is the only character in demon slayer to transform humans. Webmuzan kibutsuji is the antagonist in demon slayer and stands as the ultimate embodiment of evil, casting a long and dark shadow over the entire series' narrative.
