Yoru

Two distinct bodies house this Devil across her story. The first is avian. Stripped to a near-dead husk once the Chainsaw Devil consumed the bulk of her, she seized a nightjar's frame, a beige creature that reads as something between an owl and a potoo and fixes onlookers with an unsettling stare. That borrowed shape echoes the canine body Pochita once wore, though her genuine form stays hidden, and the banded rings that mark every Horseman still circle her eyes.

Her second and more familiar guise belongs to Asa Mitaka. After lodging herself in half of the girl's brain, the Devil wears Asa's face almost unchanged, the lone additions being scars that streak across the middle of her features and her left cheek, tracing the wound the Class President once inflicted. The same multi-ringed gaze shared with Makima surfaces whenever she takes the wheel. She lets the hair hang free rather than binding it into Asa's twin tails, and she carries herself with a straighter, surer bearing than her bashful host. Because the two split a single body and merely trade command of it, her wardrobe matches Asa's, most often the school uniform.

Pride defines her early showing. She dismisses enemies as light exercise and swears to wrench the Nuclear Weapons Devil back from her rival, bravado that ignores how thoroughly he once beat her and how diminished she now is. Even so, she reads a hopeless matchup well enough to retreat from it. Sentiment toward people barely registers, and she repeatedly presses Asa to murder a friend for raw weapon material, even wounding her host's body to wrest back control. Cold calculation rules her, a stark contrast to Asa's raw feeling, and traumas that would shatter anyone else roll off her. Her very essence as the War Devil drags her into one clash after another, many of which rebound to her own harm, and she has cackled at the ruin she leaves across an entire city.

Where her sisters Makima and the Death Devil stay serene, Yoru comes off as messier and more childish, quick to lose her composure, prone to pounding pillows in a tantrum, and deeply stung whenever someone doubts her brains or muscle. The dread of fading from memory gnaws at her. Yet she bonds with those she names her comrades and balks at converting the Gun and Tank Devils, creatures she treats as her own children, into armaments. Plain bread satisfies her, so she asks little in the way of comfort. Largely blind to how people actually relate, she takes words at face value and provokes easily, though prolonged closeness to Asa slowly teaches her some grace, and in the rarest moments she will sacrifice her own footing to spare her host fresh grief.

Like any Devil she regenerates, returns from Hell after dying, replenishes herself with blood, and grows stronger as fear of her spreads. Among the Horsemen, though, she sits at her weakest here, sapped by Chainsaw Man eating part of her, by the long peace that exiled war to films and video games, and by her fall to Fiend status. Her strength rises and drops with how greatly the public dreads warfare and all that surrounds it, so the return of nuclear arms sends it soaring and even lets her loose a devastating Nuclear Punch. Sharing Asa's brain lets her feel human emotion, sift through her host's thoughts, and claim the body whenever she likes, unless fear shuts her out.

Her signature gift is turning anything she owns into a weapon, object or living being alike. Early on she had to touch the item and name the weapon aloud, but as she strengthened she could call arms to her from a distance in silence. The heavier the guilt behind a piece, the deadlier it becomes, which is why kin such as the Gun and Tank Devils yield her most fearsome armaments. Human remains give her blades like the sword torn from Tanaka's spine, while everyday objects become pencil spears, ruler swords, and odder things besides. A pact with California's governor shunts any fatal wound she takes onto a random resident of the state, and her Gun Gauntlet lets her seize the contracts of Devils she has weaponized, most monstrously reshaping the Statue of Liberty into a rifle-bearing colossus. Lost blood leaves her anemic until she drinks her fill.