Doma is one of the central antagonists of Demon Slayer: Kimetsu no Yaiba, serving as the Upper Rank Two of the Twelve Kizuki, the elite group of demons directly under Muzan Kibutsuji. He is responsible for the deaths of several important characters and is considered one of the most powerful demons in existence. Doma is a deeply disturbing blend of charisma, detachment, and cruelty, hiding a hollow core behind a facade of joy and religious grace.
Doma is notable for having turned both Gyutaro and Daki into demons and later for killing the Insect Hashira Shinobu Kocho, setting the stage for one of the most intense battles in the final arc.
Appearance[]
As a Demon:
Doma has a youthful and attractive appearance, with long, pale blond hair that fades to a turquoise hue at the ends, rainbow-colored irises with vertical slits, and a perpetual smile. He wears a flamboyant outfit inspired by traditional Japanese clothing, including a sleeveless haori with ornate patterns and jewelry resembling that of a cult leader. His elegant look belies the horror he embodies.
Despite his cheerful demeanor, his eyes are soulless, and his smiles feel artificial, enhancing the unsettling contrast between his appearance and his nature.
As a Human:
In life, Doma was the leader of a cult that revered him as a divine being. Even as a child, he was treated as a prophet, which contributed to his emotional disconnection and moral detachment from reality.
Personality[]
Doma is outwardly friendly, serene, and polite, often smiling and speaking in a cheerful, almost childlike tone. However, underneath this surface lies a deeply emotionless and nihilistic being. He is incapable of genuine empathy, love, or sadness, and he admits to never having truly felt anything, including grief for those he has killed.
Doma presents himself as a spiritual guide and leader, but his actions are anything but holy — he eats his followers, believing he's "saving" them by offering them eternal peace within him. He rationalizes this cannibalism as mercy, revealing a disturbing disconnect from reality.
He often mocks emotional expression, finding human feelings like anger, sadness, and love to be “pointless,” and reacts with confusion or amusement when others display strong emotions.
Despite his lack of emotion, Doma is not stupid — he is cunning, manipulative, and can fight with both calculated intelligence and overwhelming strength. His detachment from morality or fear makes him terrifyingly efficient in battle.
Story[]
Backstory[]
Doma was born into a cult that believed he was the physical reincarnation of a god. From a young age, his followers prayed to him, worshipped him, and sought his guidance, burdening him with their grief and sins. However, he was incapable of feeling any emotion — including compassion or sorrow — and simply went along with it all out of obligation and boredom.
After his parents died in a tragic and violent way, Doma felt nothing, which disturbed him. This inability to connect with others or feel remorse laid the groundwork for the cold and detached being he would become.
Eventually, he was approached by Muzan Kibutsuji, who offered him power and the ability to help more people — in Doma’s twisted mind, consuming his followers as a demon became a form of salvation for them.
Over time, Doma ascended through the ranks of the Twelve Kizuki, eventually becoming Upper Rank Two.
Role in the Main Story[]
Entertainment District Arc:
Though he does not directly fight in this arc, it is revealed that Doma is the one who turned Gyutaro and Daki into demons. His manipulative charisma and influence shape their transformation, showing how deeply embedded he is in the demon hierarchy.
Hashira Training Arc:
Doma remains hidden in the shadows as the Hashira and Tanjiro prepare for the final battle. He continues to attract human followers to his cult, which serves as a front for his predatory behavior.
Final Battle – Infinity Castle Arc:
Doma is confronted by Shinobu Kocho, the Insect Hashira, who battles him alone. Despite her incredible skill and poison techniques, she is ultimately killed by Doma and consumed. However, her death was part of a plan: Shinobu had saturated her own body with wisteria poison for over a year, and when Doma devoured her, the poison began to work from the inside.
Soon after, Kanao Tsuyuri and Inosuke Hashibira arrive to fight him. Inosuke reveals that his mother was one of Doma’s cult followers who tried to escape, only to be killed by him — giving Inosuke a deeply personal reason to fight.
The battle is brutal, with Doma showcasing overwhelming power. However, the poison from Shinobu eventually begins to cripple him. Kanao uses her incredible vision and sword skills to exploit this moment, and with Inosuke's help, they manage to decapitate Doma, killing him at last.
Death and Final Reflection:
In his final moments, Doma encounters Shinobu's spirit in the afterlife. For the first time, he experiences a feeling he doesn’t understand — possibly love. This moment of emotional awakening comes too late and is bitterly ironic, as he dies confused and fascinated by the feeling he could never understand in life.
Powers and abilities[]
1. Blood Demon Art – Cryokinesis (氷の血鬼術, Kōri no Kekijutsu)[]
Doma’s Blood Demon Art allows him to create and manipulate ice, which he generates from his own blood. His ice-based techniques are not only powerful but infused with his deadly poison, which affects those who inhale or touch the ice.
- Frozen Lotus (蓮華氷, Renge Hyō): A beautiful but deadly technique that produces ice lotuses to attack or defend.
- Crystal Demonic Bodhisattva (結晶ノ御子, Kesshō no Miko): A massive ice construct resembling a multi-armed Buddha that mimics Doma’s own attacks with incredible range and destructive power.
- Cold Mist Clones: Doma can create ice clones of himself that fight and distract enemies.
- Freezing Mist: The mist he exhales chills the lungs and nerves of his opponents, slowing them down and weakening their movements.
2. Immense Strength and Speed[]
Doma is one of the fastest and strongest demons in existence, able to fight and kill Hashira-level opponents with ease. His reflexes and perception allow him to react instantly to attacks and counter them with terrifying precision.
3. Regeneration[]
As an Upper Rank demon, Doma possesses high-speed regeneration, allowing him to recover from wounds instantly. Even after being hit with poison, he continues to fight at nearly full strength for an extended time.
4. Poison Resistance[]
Although he is affected by Shinobu’s wisteria-based poison, Doma demonstrates an unusually high resistance to toxins — he requires a massive dose (equivalent to absorbing Shinobu’s entire body) to be fatally weakened.
5. Deceptive Intelligence[]
Doma is deceptively cunning, often using his charm and false benevolence to lure in victims. In battle, he analyzes enemy tactics quickly and adjusts his fighting style. He also uses psychological manipulation to throw his enemies off balance.