The Upper Moons

Daki is a very prideful, dismissive, and sadistic person, taking enjoyment in toying with her victims before killing them and not showing the slightest bit of guilt or remorse for taking the lives of her victims. Despite being over a hundred years old, she displayed childish and bratty tendencies such as throwing tantrums, crying hysterically when things didn't go her way, and lashing out against anyone to vent her frustrations.

Gyutaro is cruel, ruthless, petty, and envious of anyone blessed with a better life than him, owing to a life of near-constant poverty and the harsh tragedies he experienced as a human Having lived over a hundred years and battled many Gyutaro become arrogant and prideful in combat. Despite his negative traits, Gyutaro possessed a genuine, strong love for his younger sister, Daki.

Doma is a psychopathic, deranged, ruthless, misanthropic, and manipulative nihilist who pretends to be outwardly friendly. Doma is a complete and utter psychopath who is hopelessly unable to comprehend basic human emotions. He has a cynical view of the world and has his grotesque ideal reality.

Akaza is a stubborn, harsh, short-fused, and bloodthirsty fighter who desires to fight the strong, respects the strong, and loathes the weak. He also shares ill feelings for his fellow Kazuki and sees them as his rivals, being especially hostile towards Kokushibo, and Doma.

Kokushibo is Mysterious, composed, grim, serious, and yet somewhat honorable. Kokushibo is also a serious person who loves to fight, and never plays around. He is also the most loyal enforcer of the Upper Ranks of the Twelve Kizuki, willing to punish Akaza for breaking the rule and attacking Doma, though he does suggest Akaza fight Doma and earn his place if the latter disgusts him.

Gyokko is a very excitable demon, over what he deems as his "art". Gyokko is a self-proclaimed "artist" with a sadistic streak, being arrogant, egomaniacal, and short-fused, especially when people didn't appreciate his so-called "art".

Hantengu is no doubt nothing but an embodiment of fear and cowardice. Hantengu keeps using his age and condition as an excuse, trying to weasel away from his crimes and blaming anyone, or anything - like his very own hand.

Muzan is a callous, ruthless, intimidating, tyrannical, heartless, egomaniac, and extremely narcissistic perfectionist with a horrendous self-absorbed streak. He never tolerates anyone who mocks him.

Kaigaku is an arrogant opportunist who follows the strong and despised weakness, especially when it obstructs something he wants, as seen with his bullying words against Zenitsu. Deep down, Kaigaku is also a coward, who cowered in fear at Kokushibo and knelt in front of him, willingly accepting Muzan’s blood and becoming a demon as a result. Kaigaku also shows no remorse for his treachery and cowardice, even teasing his master.

Nakime is stoic and calm, but actually cruel and ruthless. While she rarely speaks, she speaks very dull and straightforward when she does. Like all the other demons, She is extremely loyal to Muzan.