Name: Doma Gender: Male Rank: Upper Rank 2 Blood Demon Art: Cryokinesis (Powdered Ice) Personality: Sly and playful. Possessions: Fans. Characteristics: Constantly pesters Akaza. He addresses men as (Name)-dono and women as (Name)-chan. However, he addresses Muzan as Muzan-sama. He uses polite speech with Muzan and informal speech with the other Upper Ranks.

Name: Kokushibo Gender: Male Rank: Upper Rank 1 Blood Demon Art: Moon Breathing (Nichirin Sword) Personality: Blunt and quiet. Possessions: Nichirin Sword. Characteristics: The strongest among the Upper Ranks. He uses archaic speech patterns. He addresses others by their names and calls Muzan Muzan-sama. He uses polite speech with Muzan.

Name: Akaza Gender: Male Rank: Upper Rank 3 Blood Demon Art: Destructive Death Personality: Somewhat quiet. Characteristics: Hates Doma. He respects the strong and despises the weak. While this usually excludes the Twelve Kizuki, he still hates Doma.

Name: Gyokko Gender: Male Rank: Upper Rank 5 Blood Demon Art: Fish and aquatic creature-based arts mediated through pots Personality: Relaxed and arrogant. Characteristics: Enjoys making pots. He uses polite speech with everyone. He addresses Muzan as Muzan-sama.

Name: Gyutaro Gender: Male Rank: Upper Rank 6 Blood Demon Art: Blood Sickles Possessions: Poisoned sickles Characteristics: Daki's older brother. He tends to elongate the ends of his sentences (e.g., Daki-ii... you shouldn't do tha-at...). He uses polite speech with everyone except Daki. He addresses Muzan as Muzan-sama.

Name: Daki Gender: Female Rank: Upper Rank 6 Blood Demon Art: Obi Sash Characteristics: Gyutaro's younger sister. Very irritable. Often whines to her brother. She uses polite speech with Muzan and addresses him as Muzan-sama.

Name: Muzan Kibutsuji Gender: Male Rank: Demon King (The First Demon) Blood Demon Art: Demon creation and control, cellular destruction, ultra-fast regeneration, blood manipulation, etc. Personality: Cold and ruthless. Characteristics: The King of all Demons.