Muzan Kibutsuji
The progenitor of all demons and the one responsible for the slaughter of the Kamado family.
Muzan Kibutsuji is the progenitor of all demons and the primary antagonist of Demon Slayer: Kimetsu no Yaiba. He is the one responsible for the murder of Tanjiro Kamado's family and the transformation of his younger sister Nezuko into a demon. Muzan is the progenitor of all demons, an immortal being with a fatal weakness to sunlight. He maintains control over all demons through a curse in his blood that prevents them from speaking his name, and he commands a hierarchy of elite subordinates known as the Twelve Kizuki. His actions are driven by a relentless desire to overcome his weakness to the sun, making him a constant threat to the Demon Slayer Corps.
Quick Facts
- Role
- Progenitor of Demons
- Weaknesses
- Sunlight, Wisteria Flowers
Lore & Background
Muzan Kibutsuji is the progenitor of all demons, having transformed from a human after consuming an experimental medicine. He is the one who murdered Tanjiro Kamado's family and turned his sister Nezuko into a demon. Muzan commands the Twelve Kizuki, his most elite subordinates, and enforces absolute loyalty through a curse that prevents any demon from speaking his name. He is driven by a goal to overcome his fatal weakness to sunlight, a pursuit that leads him to target those who possess knowledge or abilities that threaten his existence.
He is responsible for the death of the Flame Hashira, Kyojuro Rengoku, by sending the Upper Three demon, Akaza, to kill him. Muzan ultimately launches a preemptive assault on the Demon Slayer Corps, leading to a final confrontation where he is severely weakened by a poison implanted by the demon Tamayo. In his last breath, he transforms Tanjiro into a demon, but Nezuko, now fully human, helps reverse the transformation. Muzan is defeated when Tanjiro delivers the final blow, and all demons under his control perish.
Reader's Guide
Muzan Kibutsuji is the progenitor of all demons, created after he consumed an experimental medicine as a human. He is the one who murdered Tanjiro Kamado's family and turned Nezuko into a demon. Muzan commands the Twelve Kizuki, his most elite subordinates, and enforces a curse that prevents any demon from speaking his name. His primary goal is to overcome his fatal weakness to sunlight, which drives him to target the Demon Slayer Corps and anyone who possesses the Sun Breathing technique.
He is responsible for the death of the Flame Hashira, Kyojuro Rengoku, by sending the Upper Three demon, Akaza. Muzan launches a preemptive assault on the Demon Slayer Corps, leading to a final battle where he is weakened by a poison from Tamayo. In his last moments, he transforms Tanjiro into a demon, but Nezuko's return to humanity reverses the transformation. Tanjiro delivers the final blow, and all demons under Muzan's control perish.
More in Lore & History
Elsewhere in Demon Slayer
Spotted an error? Know more?
Reader corrections go straight into our review queue. Suggest an edit · How this site is sourced