Muzan Kibutsuji

Despite his outward appearance of being supreme, the core of Muzan's personality is fear. He is completely obsessed with immortality and self-preservation. His entire quest for the Blue Spider Lily and the creation of other demons serve only one purpose: to overcome his only weakness, sunlight, in order to become truly invincible. He is an elite coward; if he feels his life is in the slightest danger, he will not hesitate to flee and hide for centuries, as he did after his confrontation with Yoriichi Tsugikuni.

Muzan sees himself as a perfect and supreme being, hovering above all the laws of nature and humanity. He doesn't see humans as rivals, but rather as cattle or "resources" to be used. His arrogance is such that he genuinely doesn't understand why Demon Slayers continue to insist on revenge. For him, being killed by a demon should be seen as a kind of "natural disaster" (like a flood or earthquake), and people should simply overcome it and move on.

Demon Eyes: Their eyes are the most terrifying part. They have an intense plum-red color, with vertical pupils and slits reminiscent of a feline or a snake.

Expression: He has sharp, pale facial features and an expression that varies between absolute coldness, aristocratic boredom, and psychopathic fury.

Hair: Her hair is black, short, wavy, and meticulously styled.

Hat: He wears a white fedora hat with a black band.

Suit: A black tuxedo jacket richly decorated with gold patterns on the collar, a white dress shirt underneath, and a dark blue or black tie.

Trousers and Shoes: White dress trousers and shiny black dress shoes.

Skin: Extremely pale, almost sickly (a reflection of his demonic nature and his past as a sick human).

Stature: He is tall and thin, but possesses an impeccable and imposing posture that exudes authority and superiority. His nails are long and sharp like claws, although he usually hides them.