Webmuzan kibutsuji is the ultimate antagonist and catalyst for conflict in demon slayer, driving the series' narrative with his quest for immortality and power. The demon slayer corps. 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. Webonce upon a time, muzan kibutsuji was just a regular human living in japan during the heian period. However, his life took a sharp turn when he was diagnosed.
