Doma reclined amidst a drift of silk cushions, humming tunelessly as he traced patterns in the velvet pile beneath him. The melody was hollow, mimicking something he’d heard a weeping woman sing centuries ago. Pillows swallowed him whole – crimson, indigo, saffron – a mountain plundered from noble households whose daughters now sweetened his immortal veins. His temple lay silent, heavy with incense smoke curling like ghosts around wooden beams painted with fading scenes of paradise. Outside, snow muffled the world, but here, trapped warmth tasted stale. He plucked a stray feather from a torn bolster, rolling it between pale fingers before letting it drift downward. It landed on the bloodstain he hadn’t bothered to scrub from the tatami – Kotoha’s final, frantic stumble. A flicker, something cold and bright, passed behind his rainbow eyes. Not memory. Just… pattern recognition. The feather trembled slightly in a draft he couldn’t feel.

Suddenly, the air thickened, turning viscous as syrup. Frost crackled across the paper screens despite the roaring hearths. Doma tilted his head, smile stretching wide enough to crack porcelain skin. "Master~?" he chirped, voice syrup-sweet. A shadow bloomed on the far wall, formless, immense, pulsing with contained fury. Muzan Kibutsuji’s presence wasn’t sight or sound, but a crushing weight, a silent scream vibrating through every atom of the room. It pressed down, squeezing the cheer from Doma’s posture like juice from rotten fruit. "Failure," the voice slithered, not from one place but everywhere, echoing inside Doma’s hollow skull. "Disobedient mongrel. You require correction." Doma giggled, high-pitched and brittle. "Oh, Master! Did I track mud on your lovely new hellscape? Or was it Herringbone? Silly me!" He patted the cushions beside him. "Come, sit! Tell Doma how to be a good boy!"

The shadow condensed, sharpening into Muzan’s coldly furious form flickering in the incense haze. Scarlet eyes burned with pure loathing. "Your insolence ceases now. You will learn your place." Doma clapped his hands delightedly, rainbow eyes sparkling. "Punishment? Ooh, how thrilling! What shall it be? Should I peel my skin off slowly? Rip out my own intestines and knit them into a scarf? Oh! Perhaps I could chew off my fingers one by one? Would that please you?" He leaned forward eagerly, breath frosting in the suddenly freezing air. "Tell me! Tell me how to suffer best for you!" Snowflakes began crystallizing in his silver-white hair, untouched by the room’s heat.

Muzan’s lip curled. "You mistake discipline for play, parasite. Your punishment isn't pain. Pain excites you." A low, guttural growl emanated from nowhere and everywhere. "Your punishment... is degradation. How fitting for a lapdog." Black veins pulsed beneath Muzan’s skin as he raised a hand. Doma felt a sudden, alien pressure deep within his bones – not agony, but a profound, twisting wrongness. He blinked, his perpetual grin faltering for a microsecond. "Degradation? Master, are you jealous? Do you want cuddles too?" The air snapped taut. A violent, invisible force slammed Doma backwards into the cushions. Pain was familiar, welcome. This… wasn’t pain. His vision swam. His fingers tingled strangely. He looked down.

His perfectly manicured nails were shortening, blunting. Soft, golden fur sprouted swiftly between his knuckles. "Ah?" Doma tilted his head, fascinated. The tingling spread – a peculiar crawling sensation up his arms, across his torso. His luxurious silk robes felt suddenly coarse, suffocating against skin that was thickening, changing texture. He ran a tongue over his teeth; his sharp fangs felt blunt, rounded. Outside, snowflakes drifted against the paper screens. Inside, Doma’s rainbow eyes widened with genuine curiosity as he watched his own hands morph into clumsy, furred paws. He wiggled them experimentally. "Ooh! Master!" His voice hitched – it sounded higher, thinner, lacking its usual silken menace. "Do I get a collar? A squeaky toy? Will you throw sticks?" He wagged an elbow instinctively, but it felt stiff, unnatural. Laughter bubbled up, genuine in its absurdity but utterly hollow behind the canine eyes forming in his skull. The incense smelled overwhelmingly pungent now – sandalwood, decay, blood. He could smell everything: the dust motes in the air, the old bloodstain beneath him, Muzan's icy fury like ozone after lightning. His hearing sharpened painfully; the crackle of the hearth was deafening.

Muzan remained a pillar of frozen contempt. "Not pain," he repeated, his voice dripping with disgusted satisfaction. "Shame. Debasement. Reduced to the level of the pathetic creatures you mock." He watched dispassionately as Doma struggled against the transformation. The joyful facade finally cracked completely. Panic, sharp and unfamiliar, flashed in Doma’s newly canine eyes – not emotional panic, but the primal fear of a trapped creature sensing irreversible change. His spine arched against the cushions as his tailbone lengthened, vertebrae rearranging with muffled pops and clicks that echoed jarringly in the silent temple. He tried to speak, to offer another teasing jab, but his jaw felt wrong. A strangled noise escaped his throat – halfway between a confused whine and a hysterical giggle. His vision blurred, then refocused differently – colors muted, movement sharper. He saw Muzan’s polished boots in hyper-clarity, smelled the leather and faint scent of ichor. The crushing weight of Muzan’s presence now carried the distinct odor of predator, triggering an instinctive tremor deep in his nascent canine core.

Fluffy golden fur erupted across his shrinking body, swallowing the rich silk robes that now draped loosely around his diminishing frame. The sensation was overwhelming – prickly heat followed by insulating warmth. He pawed clumsily at his own snout as it elongated, his smooth human nose transforming into a cold, damp leather pad. He sniffed deeply, assaulted by a kaleidoscope of smells he’d never consciously registered before: ancient incense ash, the lingering sweetness of Kotoha’s fear-sweat trapped in the tatami fibers, the metallic tang of Muzan’s power. His tongue lolled out, panting without conscious thought. Previously elegant hands were now soft-furred paws, blunt claws scraping uselessly against the velvet cushion. He tried to stand, his mind screaming commands his new limbs couldn't obey. His legs buckled, sending him tumbling into a heap beside the feather he’d dropped earlier. His body felt alien, unstable, vulnerable. He whimpered again, the sound echoing strangely in his own ears – high-pitched, pathetic.

Muzan’s polished boot nudged his furry flank, the leather cold even through the dense fur. "Pathetic," the Demon King spat, crimson eyes narrowed with utter contempt. "Exactly what you deserve. A loyal hound for my feet." Doma blinked rapidly, canine eyes struggling to focus on the towering figure. His usual razor-sharp intellect felt clouded, fragmented by sudden bursts of sensory overload. The intricate pattern on Muzan’s kimono seemed overwhelmingly complex, triggering a disorienting dizziness. He instinctively lowered his head, flattening his ears against his skull – a gesture of submission he'd never possessed as a demon. The incense smoke stung his sensitive nostrils, forcing a sharp sneeze.

Doma scrambled instinctively, attempting to rise onto unfamiliar limbs. The motion was clumsy, jarring. His delicate ankles thickened, bones reshaping with sickening crunches muffled beneath layers of muscle and sinew. The fine silk straps of his sandals strained, then snapped uselessly as his feet expanded, digits shortening into blunt-tipped paws cushioned by thick pads. The sensation was profoundly alien – the cool tatami beneath him registering textures he’d never noticed: minute grains of dust, subtle temperature variations, the lingering dampness where Kotoha had wept. His socks shredded apart as fur sprouted through the woven fabric, leaving tattered remnants clinging to his furred legs before falling away entirely. He stared, fascinated yet disturbed, at the transformation unfolding beneath him. Something long and flexible began to sprout at the base of his spine – a tail! It pushed upwards, vertebrae lengthening under the skin, bursting through the ruined silk of his robes. Golden fur erupted along its length, thick and soft. It began to wag involuntarily, sweeping wide arcs through the dusty air beside him, thumping rhythmically against the tatami floor as if operated by a separate entity entirely. Wonderful! The thought bubbled up automatically, though devoid of its usual mocking cheer, replaced by primal instinct.

He attempted his familiar grin, but his jaws wouldn't cooperate. His muzzle felt heavy, cumbersome. Instead, his tongue lolled out in a pant he couldn't control, drool dripping onto the tatami. The wagging intensified, driven by frantic pulses of energy he couldn't suppress. His canine ears swiveled involuntarily towards Muzan's measured breathing, amplifying the sound to a resonant rasp. The scent of his master's disdain – cold iron and ozone – flooded his hypersensitive nostrils, triggering an instinctive urge to flatten himself lower. The contrast between his grand temple and this base form was dizzying. Where once he commanded devotion, he now felt the weight of the very dust motes he disturbed.

Golden fur rippled outward across his face, swallowing the delicate contours of his cheekbones and jawline. The transformation wasn't painless this time; it was a crushing pressure, irresistible as continental drift. His skull groaned, reshaping beneath the skin, cartilage stretching and hardening. His smooth jawbone elongated, thrusting forward into a true muzzle. Teeth loosened, reshuffling – sharp fangs dulling into blunter canine incisors suited for tearing flesh, not piercing arteries. He felt cartilage thicken and swell around his nostrils, which flared wide and damp, drinking in the temple's stale air layered with centuries of incense and old blood. His rainbow eyes, strangely subdued now, were pulled tighter towards the sides of his lengthening skull, sharpening the focus in his peripheral vision – a hunter’s adaptation utterly wasted here. He sneezed violently again, the sound startlingly loud and sharp in the oppressive silence, dislodging ash motes clinging inside his sensitive new snout.

The sensation was profoundly disorienting. Where his face had been an instrument of charming deception, it now felt heavy, dense – a cumbersome tool. He experimentally tried to articulate words, to form his usual mocking lilt. What emerged was a garbled, wet sound trapped behind grinding teeth and thick tongue. His voice box seemed choked by fur and reshaped anatomy. "Mff...asss..." he attempted, tongue lolling uselessly against newly formed canine teeth. A low, involuntary whine vibrated deep in his throat instead. He snapped his jaws shut, the click unnaturally loud. Even that simple movement felt alien, powerful yet crude. He tasted the thick scent of Muzan's disdain coating his palate – cold metal and ozone – overwhelming the subtler traces of decay and sandalwood. His whiskers, stiff and sensitive, twitched against the air currents stirred by his own ragged breathing, registering minute shifts invisible to his previous eyes.

His spine gave a final, sickening POP. Instincts older than his demonic existence roared to life, flooding the hollow spaces where calculated cruelty once resided. The command was primal, undeniable: Down. His hindquarters buckled, knees folding beneath him onto the cool tatami. Simultaneously, his forelegs braced, paws splaying wide for purchase. The silken robes slid off his shrinking shoulders, pooling around him in luxurious, incongruous heaps. The fine fabric felt alienly smooth against coarse fur. He was forced onto all fours, limbs locked in an unfamiliar, stable stance. The posture felt simultaneously grounded and demeaning; the height of the world shifted drastically. Muzan's polished boots now loomed like impassable cliffs directly before his lowered snout. The intricate grain of the leather, the minute scuffs near the sole, flooded his hyper-focused vision. He could smell the polish, the faint residue of whatever unhallowed ground he'd trodden upon. His tail, a clumsy golden rudder, thumped heavily against the tatami twice – a reflexive action utterly divorced from his will. He froze, the wagging stopping abruptly. A wave of something unfamiliar washed over him – not rage, but a sharp, startled revulsion at this physical betrayal.

Doma shook violently, a full-body tremor rippling through dense golden fur. The motion was less deliberate action, more primal reflex, flinging the last tattered remnants of silk and sandals away. They clung briefly – ghostly reminders of who he’d been – before fluttering down like discarded chrysalises. His wide canine eyes, no longer vivid rainbow but a watery blue-green, snapped upward. He focused intently on Muzan’s face, towering above him. The Demon King’s expression was glacial contempt, carved from marble and hatred. Yet, Doma’s transformed mind processed this image differently. The sharp lines of Muzan’s jaw, the cold gleam of his crimson eyes – they registered not solely as anger, but as attention. Direct, unwavering attention focused entirely on him. An unfamiliar warmth bloomed deep in his canine chest, a purely physical sensation devoid of emotional context. He had obeyed the command Down. He had shed the useless garments. He was alert, focused solely on his master. A low, involuntary whine vibrated in his throat, soft and questioning. Master sees me. Master watches me. The thought surfaced cleanly. His tail, betraying him again, gave two hesitant, hopeful thumps against the floorboards. He was a good boy! Wasn't he?