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English
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Published:
2025-08-02
Completed:
2025-11-24
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25,212
Chapters:
13/13
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11
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167
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The Demon Husband Clause (Or: How to Accidentally Marry the Wrong Prince of Hell)

Summary:

Seungcheol has spent his entire life in a cloistered cult, molded into the perfect, obedient husband for their dreaded patron demon. On his wedding night, he’s sacrificed in a grand blood ritual meant to summon the Lord of Shadows himself.

The ritual works — except it doesn’t.

Instead, Jeonghan appears: an infuriatingly beautiful demon with a wicked grin, an aversion to seriousness, and a deeply concerning willingness to set people on fire for fun. The cult is horrified. Jeonghan is thrilled. And Seungcheol… really just wants to understand why his new husband keeps trying to feed him grapes in the middle of mortal danger.

Unfortunately for everyone, Jeonghan hasn’t had a partner in centuries — and now that he’s been given one, he’s keeping him. Which means Seungcheol is about to learn that the only thing more dangerous than marrying a demon… is being loved by one.

Chapter 1: The Perfect Husband

Chapter Text

Gray light bled through the narrow slits in the stone wall, thin and cold, falling in long, sharp bars across the floor. The air was damp enough that his breath fogged faintly in front of him when he exhaled.

 

The morning gong sounded — deep, metallic, and final. It rang through the compound like a hand closing around his ribs. Seungcheol pushed back the thin blanket, folding it with neat, mechanical precision before setting it at the foot of his cot. His knees touched the icy stone as he bowed three times toward the small altar in his room, each motion as practiced as breathing.

 

Somewhere far down the hall, voices began a low murmur of prayer, blending with the lingering resonance of the gong.

 

When he stepped out into the corridor, two hooded attendants were already waiting. They did not greet him. Their heads dipped just enough to acknowledge his presence before they turned, leading him down the narrow passageway. The fabric of their robes whispered against the flagstones as they walked.

 

The compound always smelled the same — smoke from last night’s incense still clinging to the air, sharp resin from the polished wooden beams, the faint salt of the water they hauled up from the well each dawn.

 

They passed the outer gate just as it was being unbarred for the morning deliveries. A harsh groan of wood, the metallic grind of a bolt sliding back, and then — a rush of light. Gold poured in, startling in its brightness against the gray. Seungcheol’s steps faltered for a fraction of a second.

 

Beyond the gate, the world was in motion: a strip of pale sky, the green edge of some distant treetop, the crunch of wagon wheels on packed dirt. He felt the sun’s warmth even from here, a ghost of heat reaching across the courtyard toward him.

 

One of the attendants glanced over their shoulder, the briefest flicker of suspicion. Seungcheol lowered his eyes again before the look could become a question. His stride fell back into their rhythm, his hands folded loosely behind his back in the posture expected of him.

 

The sunlight vanished when the gate closed.

 

Ahead, the morning devotion chamber waited — and the day that would end with his life given away.

 

 

The attendants guided him into the washing chamber, a low-ceilinged room where the air was damp and heavy with the scent of crushed herbs. Steam curled faintly from stone basins, though the water inside was far from warm.

 

Two women in pale linen waited by the largest basin. Their heads were covered, faces mostly hidden in shadow, their hands already red from the morning’s work. Without speaking, they stepped forward and began undoing the simple ties of Seungcheol’s nightclothes.

 

The fabric slid from his shoulders, pooling at his feet. The cold rushed in instantly, crawling over his skin. He kept his gaze fixed on the far wall as the first jug of water was upended over him. It struck hard and fast, running in rivulets down his chest, his legs, pooling briefly at his ankles before disappearing into the grated floor.

 

The second jug followed. Then the third.

 

A rough cloth found his back, scraping in practiced, efficient strokes. The ritual was not meant to comfort — it was meant to strip away the body’s softness, to remind him of the flesh’s impermanence. They worked until his skin flushed pink from the friction.

 

“This is the greatest honor,” one murmured in a low, reverent voice. “Today, you will be united with Him. Chosen above all others.”

 

The other’s voice was more tentative, hesitant as her fingers wove the soap into his hair. “Are you… excited?”

 

Seungcheol turned his head slightly toward her. Water clung to his lashes, dripping down into his vision. His voice, when it came, was soft and even.

“It’s what I’ve been prepared for.”

 

Neither of them seemed to notice the way the words landed flat, stripped of conviction.

 

They rinsed his hair with a final bucket of cold water, the shock making his shoulders tense. Then came the gold thread, twisted through his damp hair in careful braids, each tie knotted three times for binding. Ceremonial oil was pressed to the inside of his wrists, warm and faintly sweet-smelling, before a final dab was touched to the hollow of his throat.

 

The older attendant stepped back to inspect their work. “Perfect,” she murmured, though the word felt more like a verdict than a compliment.

 

Seungcheol stood still beneath their gaze, droplets tracing slow paths down his skin. He kept his eyes on the floor until they motioned for him to follow.

 

They led him toward the next chamber — the High Priest’s domain — where the final instructions awaited.

 

 

 

The corridor to the High Priest’s chamber was narrow and dim, the air growing cooler with each step. The attendants slowed their pace, their soft-footed tread barely stirring the dust along the floor.

 

The door to the chamber was carved from black wood, its surface inlaid with curling gold sigils that caught the faint candlelight. One attendant rapped twice on the frame — the sound low, deliberate.

 

“Enter,” came the voice from within.

 

They stepped aside for Seungcheol.

 

Inside, the air was thick with the scent of old parchment and something sharper — a resinous incense that clung to the throat. The single black candle on the central table threw shadows into the hollows of the room, its flame steady, unnervingly still.

 

The High Priest sat at the far end, his back straight, his ceremonial robe pooling heavily around him. His eyes tracked Seungcheol’s every step.

 

“Kneel.”

 

The stone pressed cold against Seungcheol’s knees as he obeyed.

 

The High Priest’s voice was slow and deliberate, each syllable carrying the weight of finality.

“You will walk the aisle with eyes lowered. At the altar, you will kneel again and wait until He addresses you. You will not speak unless commanded. You will not lift your head until given leave. You will not look upon His face until He permits it.”

 

Seungcheol nodded, gaze fixed on the floor between them.

“Yes, High Priest.”

 

The man’s shadow shifted across the wall as he leaned forward. “Remember — this is not a union of equals. This is the honor of being chosen. You will belong to Him entirely. Your body, your will, your breath — all His.”

 

“Yes, High Priest.”

 

But in the stillness that followed, a question curled sharp and quiet in Seungcheol’s mind.

What happens if I do look?

 

The High Priest’s hand, cool and bony, settled briefly on the crown of Seungcheol’s head. His lips moved in a blessing — or perhaps a claim — murmured in the curling syllables of the old tongue. The words slid like oil down Seungcheol’s spine.

 

When the final word faded, the High Priest waved a hand in dismissal.

“Go. Be made ready.”

 

The attendants stepped forward again, ushering Seungcheol back into the corridor. The candlelight fell away, replaced by the softer glow from the waiting hall.

 

The next room would be his — for the last time.

 

 

The attendants left him at the threshold of his chamber with a shallow bow, the door clicking shut behind him.

 

The room was exactly as he had left it that morning, and yet it felt smaller, as if the walls had inched closer while he was gone. The familiar smell of beeswax polish and incense had thickened, cloying at the back of his throat.

 

Against the far wall, the ceremonial robes waited on a carved wooden stand. They were not the simple, functional garments he wore for daily rites — these were heavy with excess. White silk, lined in black, embroidered with gold thread that spiraled into words he had never been taught to read. The stitches seemed to shift if he looked at them too long, curling into new shapes before settling again.

 

Beside them, on a low velvet cushion, sat the crown of thorns. The gold was the deep, old kind — the color of coin edges worn smooth by centuries of touch. Tiny barbs, impossibly fine, curled along each loop, sharp enough to catch a strand of hair or a bead of blood without effort.

 

The High Priest had called it the symbol of devotion. The younger attendants whispered it was a mark of possession.

 

A small table stood near the robes, holding the few items that had been deemed part of his “grooming”: a small comb, a black ribbon for the final fastening of his hair, and a shallow bowl of scented oil. Everything was placed with precise symmetry, as if even an inch of disorder might offend the god he was meant to marry.

 

From somewhere deep in the compound came the faint hum of chanting. The rhythm was steady and patient, like a heart that had been beating long before his birth and would keep beating long after his death. It filled the silence in the room until it seemed to vibrate in the bones of the floor.

 

Seungcheol lowered himself onto the edge of his bed, the mattress dipping beneath his weight. He stared at the crown.

 

His hands lay loosely in his lap at first, but his fingers began to curl inward, nails pressing faint half-moons into his palms. The motion was small, almost invisible, but it sent a tiny shock up his arm — a reminder of the body under the ritual.

 

It wasn’t fear exactly that settled in his chest. Fear was sharp, easy to name. This was heavier. Thicker. A knowing without words.

 

The chant shifted, voices rising in unison before falling again. His head turned toward the door — not to the altar beyond it, but to the direction he knew the outer gate lay. He could almost remember the warmth of the sunlight he’d felt earlier.

 

Almost.

 

 

The knock was sharp enough to startle him.

 

Three raps against the door, brisk and certain. Before he could answer, a voice spoke through the wood — an attendant, her tone stripped of all softness.

 

“It’s time.”

 

The words seemed to fill the room, pressing in from all sides. Somewhere deep in the compound, the gong sounded again, louder now, reverberating through the stone until he could feel it in his ribs.

 

Seungcheol rose slowly, his knees stiff from sitting too long. The embroidered robes waited on the stand like something alive, the gold threads glinting faintly as he stepped toward them. He slid his arms into the heavy silk, the cool fabric whispering across his skin. The weight settled around his shoulders, pulling faintly at the nape of his neck.

 

He lifted the crown from its velvet cushion. Even in his hands, it felt colder than the air. The fine, curling barbs caught briefly on his hair as he lowered it onto his head. The prickle was delicate but constant — a whisper of pain meant never to be forgotten.

 

The chanting beyond the door had grown louder, filling every crevice of the stone hallways. It rose and fell in waves, a thousand voices bound to the same rhythm.

 

He drew one long breath, then stepped toward the door.

 

When it opened, the hallway beyond was lined with hooded figures holding long black candles. Their flames tilted slightly toward him, as if bowing. The air was heavy with incense smoke, curling in thick ribbons toward the ceiling.

 

The attendant who had called him waited at the front of the line, her hand raised to guide him forward.

 

As he stepped into their formation, his eyes lifted — just briefly — toward the far-off direction of the gate. He could not see it from here, but he knew exactly where it was.

 

For a heartbeat, he thought of the sunlight.

 

And then the line began to move, carrying him away from it and toward the altar.