Muzan Kibutsuji, the progenitor of all demons and the primary antagonist, was ultimately killed by Gyomei Himejima, the Stone Hashira.
The Decisive Strike
During the climactic final battle against the Demon Slayer Corps, Gyomei Himejima delivered the fatal blow to Muzan. Seizing a critical opportunity amidst the chaos of the confrontation, Gyomei proceeded to behead Muzan. Crucially, he did not stop there; Gyomei meticulously destroyed Muzan's head, ensuring that the Demon King could not regenerate and effectively bringing about his definitive end. This action was the final, decisive step in defeating Muzan, marking the culmination of centuries of struggle against demonkind.
Understanding Muzan's Demise
Muzan's death was the result of an arduous and prolonged struggle involving the collective efforts of the Demon Slayer Corps. While many contributed significantly to weakening him, the specific act that directly resulted in his irreversible demise was the complete annihilation of his head by Gyomei.
- Key Action: Gyomei Himejima's beheading and subsequent destruction of Muzan's head.
- Reason for Effectiveness: Demons are incredibly resilient and possess immense regenerative abilities. For powerful demons like Muzan, mere decapitation is often insufficient to cause death. The complete destruction of the head, as performed by Gyomei, was essential to prevent Muzan's recovery and ensure his permanent defeat, marking the end of his reign.
- Role in Final Battle: This act by Gyomei Himejima concluded the Demon Slayer Corps' long-fought battle against the most formidable demon in existence.
