Born with a rare illness in the heian era (900 ac), muzan was a noble with a weak physique. He tried everything he could in order to gain a semblance. Webas the sun rises and threatens to kill muzan, tanjiro moves in to deliver the final blow. However, he is fatally wounded. Webblood demon arts and virtually unlimited regeneration stack the odds in overwhelming favor of the bloodthirsty creatures. Innate regenerative abilities further. Webmuzan kibutsuji (鬼舞辻無慘 kibutsuji muzan), also known as the demon king, is the main antagonist of the demon slayer: Kimetsu no yaiba franchise. Webnearly immortal in every sense of the word, muzan wasn't always a demon. A monster whose power makes even the deadliest demons quake with fear in his. 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. Webwhile muzan was struggling to heal, tomayo attacked him with her blood demon art that pierced the body of the demon with thorns. After that, the demon lady. Weborigin story reveals muzan's accidental transformation into a demon due to experimental treatment with blue spider lily. Muzan created demons by sharing his. Webthis marks the first time that tanjiro will be encountering an official member of muzan's twelve demon moons, giving him his first chance to acquire the blood.
