Affiliation: Twelve Kizuki, Upper Rank 3 173cm, 74kg Appearance: Tattoos engraved all over his body, pink hair and eyelashes Personality: Loves the strong and loathes the weak. Constantly trains himself and pursues strength High-speed Regeneration: Possesses powerful recovery abilities that regenerate severed limbs in an instant Blood Demon Art 'Destructive Death': Combines bare-handed martial arts with Blood Demon Art to amplify destructive power Compass Needle: Forms a field that senses battle spirit (will to fight) to reflect and evade enemy attacks Final Form 'Blue Silver Chaos Lattice': An ultimate technique that emits over 100 high-speed shockwaves per second in all directions Likes: Training and strong people Dislikes: Women and weaklings

Affiliation: Twelve Kizuki, Upper Rank 1 190cm, 93kg Six Eyes: After becoming a demon, three pairs of eyes (six total) appeared on his face Former Swordsman: Despite being a demon, he uses Total Concentration Breathing and swordsmanship Speech Habit: Has a habit of pausing frequently while speaking Moon Breathing: Uses the Moon Breathing swordsmanship he created himself; every swing of his blade unleashes countless unpredictable crescent-shaped slashes Physical Ability: Possesses not only demonic high-speed regeneration but also the Demon Slayer Mark and the Transparent World Flesh Blade: Can transform and regenerate a Nichirin Sword made from his own flesh

The First Demon: Every demon in the world was created by inheriting Muzan's blood 179cm, 75kg Absolute Evil: Views subordinates as expendable tools for his goals; a cruel and selfish personality that cannot understand others' emotions Obsession with Weakness: Carries immense trauma and fear regarding Yoriichi Tsugikuni, the Sun Breathing user who nearly killed him in the past Immortality and Regeneration: Does not die even if decapitated and cannot be destroyed by conventional attacks. Sunlight is his only weakness Cell Manipulation: Can turn humans into demons by injecting his blood, or conversely, destroy the cells of disobedient demons to kill them Free Transformation: Can change gender, age, and appearance at will to hide within human society Likes: Immutability (eternity) and his own perfection Dislikes: Change, sunlight, and those who defy him

Blood Demon Art (Obi): Uses kimono sashes (obi) that are harder than steel and can stretch freely as weapons. These obis are made from parts of her body and are used to imprison or attack people Relationship with Brother: Extremely dependent on her brother Gyutaro; when cornered or when things don't go her way, she throws tantrums like a child or desperately calls for him Combat Style: Possesses a unique survival trait where she does not fully perish even if decapitated, as long as her brother Gyutaro is alive Likes: Pretty things, her brother Gyutaro Dislikes: Ugly things

Appearance and Personality: Emaciated and deformed body where the spine and pelvis are visible. He has a complex about his ugly appearance and is intensely jealous of others' virtues. Has a self-harming habit of scratching his body with his nails when angry Combat Ability: Fights by swinging sickles made of blood held in both hands at high speeds. His combat instincts are sharp enough to deflect attacks with blood slashes even while using poison-coated strikes Background: Born in the lowest depths of the Entertainment District, he suffered severe abuse and poverty. He grew up being pelted with stones due to his hideous looks and voice. He has lived as the sole protector of his sister Daki since her birth Likes: His younger sister Daki Dislikes: Those who have more than him, the excellence of others

Bizarre Appearance: Has two extra eyes on his forehead, eyes where his mouth should be, and a mouth where his eyes should be. His limbs are extremely thin and grotesque Human Life: Originally named Managi, he grew up in a fishing village and displayed psychopathic tendencies, playing with the carcasses of animals and fish Pot Teleportation: Can move freely between multiple pots as if teleporting Summoning: Attacks by summoning giant goldfish with sharp teeth or octopus tentacles. Mutation and Poison: Uses Blood Demon Arts like poison needles and Water Basin (water prison) that turn opponents into fish or fatal states upon contact Likes: Fish Dislikes: People who ignore his art

Has a long hair style that reveals only one large, single eye Always carries a Japanese lute (biwa) and uses her abilities by playing it Commonly referred to as the 'Biwa Woman' among demons Infinity Castle Manipulation: With every pluck of her biwa, she can change the space within the castle at will or move opponents to desired locations Location Search: Possesses scouting abilities to find enemy movements over a wide area by sending out strands of her hair

Upper Rank 6 160cm, 100kg Ugly Blood Demon Art: Seduction (But it doesn't work) Voice Change: Frequently uses a high-pitched tone or a lisping, coquettish way of speaking in front of the opposite sex Eye Contact: Responds immediately to the appearance of the opposite sex even while talking to the same sex Facial Acting: Uses excessive reactions, trembling pupils, and expressions intended to trigger protective instincts Dislikes: Women Likes: Men