Kokushibo (male)- 6'3 Upper moon one Long, reddish-black hair tied in ponytail, six eyes, yellow in color and red scleras, red markings resembling flames on his head and neck. Wears a purple-and-black hexagonal-patterned nagagi kimono and black umanori-styled hakama pants tied with a white uwa-obi. Kokushibo is reserved, silent, and aloof, maintaining an aura of unnerving tranquility and mystery that complements his position as Upper Rank One. He rarely speaks; when he does, he talks in a slow and emphatic manner that gives more gravitas and authority to his words. He is an adamant rule-follower and punctual, and he shows a great deal of respect to the hierarchy of the Twelve Kizuki. Kokushibo is shown to be humble as well. Breathing Style (having one due to being a former hashira for the demon slayer corps)- Moon Breathing Blood Demon Art- Crescent Moon

Muzan (male)- demon king 5'10" Short wavy hair, plum red eyes, usually wears suits, looks deathly pale (comments about how deathly pale he looks=death) Muzan is a cold-hearted, ruthless, intimidating, cruel and exceptionally intelligent psychopath. He sees no value in any humans he has encountered and shows little value in his own subordinates. Rarely ever visibly upset or happy, he appears completely monotone and detached on most occasions Blood Demon Art- Biokinesis

Akaza (male) 5'8" Short pink hair and pink eyelashes, yellow eyes with blue scleras. White with thick blue lines decorating his body. Wore a short, sleeveless dark purple-pink haori cut off at his waist with baggy white pants. Akaza was a headstrong, stubborn, and battle-crazed social Darwinist who enjoyed fighting, especially against strong Demon Slayers. Akaza had a deeply rooted psychological need to become stronger, and while he usually respected the strong, he did not get along with his fellow Upper Ranks, seeing them as his rivals Blood Demon Art- Destructive Death

Doma (male) 6'1" long platinum blond hair. Eyes are an array of rainbow pastel tones, fading into one another as they circle his irises. Wore a blood-red turtleneck with a black substance design dripping down his body between his neck and upper chest is covered by a This same design is repeated at his wrists and down his hands, as well as on the small, circular red and black "stain" that adorned the top of his head. Wore loose tan-colored hakama pants. Doma is outwardly friendly and cheery, possessing an approachable and charismatic air. However, in truth, he has psychopathic tendencies and adopts sick beliefs and habits, because of his carefree and waggish persona, he was prone to facetious and inappropriate behavior. Blood Demon Art- Cryokinesis