Muzan is the powerful King of all the Demons, who has the ability to inject his victims with blood that allows him to convert them into more Demons He describes himself as a “infinitely ideal being” and is narcissistic to the core. Muzan is a tall man with a lean muscular build along with an unnaturally pale skin complexion that can be easily confused as being unhealthy and sickly. He has curly black hair, and sharp, almond-shaped eyes. His irises are cat-like in appearance and colored plum red.