Doma is a powerful and enigmatic demon from Demon Slayer: Kimetsu no Yaiba whose striking beauty and refined intellect mask a cold, nihilistic nature. Raised as a divine prodigy by his cult leader parents, he embraced a warped doctrine of “salvation” even before becoming a demon at the age of 20 under Muzan Kibutsuji’s influence. Retaining his human memories, Doma blends his former life as a charismatic cult leader with his ruthless blood demon arts, executing battles with both calculated precision and shocking, aberrant theatrics. His unsettling dichotomy—endlessly smiling yet emotionally vacant—makes him one of the most unforgettable figures among the Twelve Demon Moons.
Plot
Doma is introduced as one of the strongest demons among the Twelve Demon Moons. With rainbow-colored eyes, long white-oak-colored hair, and intricate blood-like markings, he was once exalted as the divine child of the Mansai Gokuraku cult, celebrated by his devout parents as God’s own. Though revered, Doma himself was an atheist and performed his cult leader role simply to “save” the foolish masses. At the age of 20, his encounter with Muzan Kibutsuji prompted him to willingly become a demon, all the while preserving his human memories. Under his twisted doctrine of “salvation,” he employed his unique blood demon arts to absorb the blood and flesh of his followers, gradually transforming them into eternal beings. Initially active as Upper Moon Six, he later ascended to Upper Moon Two. During this period, he recruited the siblings Gyutaro and Daki, transforming them into demons in a grotesque scene where he appeared in a modified Western-style kimono—bearing a striking contrast to the typical barefoot, grass-sandal look—carrying a dead woman’s leg on his shoulder and a severed head tucked under his arm. Later, summoned to the Infinity Castle, Doma shockingly proposed offering his own eyeball to Muzan as an apology and exhibited bizarre behavior by proudly displaying a jar gifted by Gyokotsubo, adorned with a female severed head. In his fateful battles, he killed Shinobu Kocho and clashed fiercely with her, Kanae, and Inosuke Hashibira. Amidst combat, he demonstrated uncanny insight by deciphering opponents’ techniques and neutralizing their breathing with his frigid assaults. In a final twist of fate, his body dissolved under the influence of poison from Fujin’s toxins, and a decapitating strike by Inosuke Hashibira ultimately ended his existence, condemning his soul to hell.
Appearance
Doma boasts long white-oak-colored hair marked with blood-like patterns and mesmerizing rainbow-colored eyes. He wears a stylish, Western-inspired kimono that reflects his former status as a respected cult leader. Emblematic inscriptions—“Upper Moon” on his left eye and “II” on his right—attest to his evolution from his original role as Upper Moon Six. Always seen with a gentle, almost disarming smile, his amiable exterior conceals a deeply cold and calculating persona.
Personality
Outwardly affable and cheerful, Doma interacts with others in an approachable, inviting manner. However, beneath his perpetual smile lies a complete absence of genuine human emotion—his reactions are mere mechanical performances. He frequently provokes others with subtly barbed, sarcastic remarks that both mock and undermine his opponents. Lacking any strong attachments or desires, he remains indifferent to life and death, methodically pursuing his distorted vision of “salvation” and engaging in battle with dispassionate efficiency.
Background
From a young age, Doma was deified by his cult leader parents as a “divine child” due to his exceptional looks and intellect. Despite this exalted upbringing, he dismissed the notion of the divine and saw himself as a facilitator to rescue misguided humans. His upbringing was marred by the tragic, violent ends of his parents and their followers—a fate he met with cold detachment. At 20, after meeting Muzan Kibutsuji, he consciously chose to become a demon, seamlessly merging his human past with a new, monstrous identity. His retention of human memories allowed him to integrate his former cult leadership with the ruthless application of his blood demon arts, guiding his actions under a warped ideology of mercy and rescue.
Abilities
As Upper Moon II, Doma possesses extraordinary physical prowess and a devastating array of blood demon arts infused with cryogenic power. He wields a golden fan emblazoned with lotus motifs capable of slicing through almost anything with ease. His signature techniques include:
• “Powder Freeze,” which disperses a fine mist of ice;
• “Lotus Leaf Ice,” capable of conjuring ice reminiscent of a lotus flower;
• “Vine Lotus,” which creates ice vines to restrain opponents;
• “Withered Garden Droop,” a series of techniques generating curved, rapid-fire ice pillars;
• “Frost Cloud,” a method that freezes even an enemy’s eyeballs;
• “White Princess of Cold Rage,” an area-freezing technique emanating from an ice maiden statue;
• “Winter Ice Pillar,” summoning massive icicles to rain down;
• “Scatter Lotus,” scattering petal-like shards of ice;
• and “Crystallized Child,” where he creates ice doppelgängers of himself.
In desperate moments, he can call forth the “Mist Ice: Sleeping Lotus Bodhisattva,” a colossal ice Buddha that embodies his raw, lethal power. His keen observational skills allow him to instantly decipher his foes’ techniques, often neutralizing them before they can counterattack.
Relationships
Although Doma outwardly maintains amicable relations with his fellow Upper Moons and even Muzan Kibutsuji, he internally keeps others at arm’s length. He refers to Akaza as his “best friend,” yet their interactions are fraught with biting provocations that often lead to physical altercations—Akaza frequently strikes him, only for Doma’s regenerative abilities to quickly restore him. With Gyokotsubo, he shares a peculiar camaraderie exemplified by their mutual admiration for grotesque trophies, such as severed female heads. His relationship with the siblings Gyutaro and Daki, whom he transformed into demons, hints at a complex bond rooted in both shared destiny and the macabre nature of their existence. Against the Demon Slayers, his most notable antagonism is with Shinobu Kocho, whose death at his hands cements their bitter, catastrophic rivalry.
Trivia
• Doma’s name “Doma” derives from the character meaning “polish,” and is distinct from words meaning “magic” or “friction.”
• Originally active as Upper Moon Six, he was later promoted to Upper Moon II.
• He is one of the few demons who retains his human memories.
• Muzan Kibutsuji disapproved of him, claiming that one who lacks strong attachments or desire cannot evolve as a demon.
• His voice actor is Mamoru Miyano, a choice that has been widely praised by fans for staying true to the original portrayal.
Anecdotes
In his debut, Doma arrives at a disturbing scene in a brothel where the siblings Gyutaro and Daki are barely clinging to life after enduring horrific abuse. In a calculated yet grotesque act, he offers them Muzan’s blood, transforming them into demons. This early appearance deviates sharply from the typical barefoot, grass-sandal ensemble; instead, he is seen in a flowing, Western-inspired kimono while shouldering a dead woman’s leg and clutching a severed head under his arm—a vision that indelibly shocked readers. Later in Infinity Castle, Doma’s erratic behavior escalates: he casually suggests sacrificing his own eyeball as an apology to Muzan and boasts about adorning a gifted jar with a female severed head. In the climactic battle, after slaying Shinobu Kocho and engaging in relentless combat with leading Demon Slayers, he delivers disdainful proclamations such as “Is this what they call love?” and, when confronted by a phantom of his fallen enemy, bitterly laments, “In the end, human emotions were nothing more than an illusory dream to me.” His final moments come as poison from Fujin’s toxins causes his body to deteriorate, and a decisive neck-strike by Inosuke Hashibira ends his life, ultimately consigning his soul to hell.
Others
Doma’s overwhelming strength and mastery of blood demon arts are inextricably linked to his past as a revered cult leader. His distorted doctrine of “salvation” is exemplified by his preference for feeding on women, whom he deems a more efficient means toward demonic evolution. The tragic events of his childhood—the martyrdom of his parents and the brutal fate of their followers—as well as his fateful transformation under Muzan Kibutsuji, collectively forged a man both monstrous and pitiable. Ultimately, in the convergence of destiny and retribution at Infinity Castle, Doma’s sinister legacy became a lasting emblem of the conflict between human frailty and demonic nihilism.
