Lucien (Bottom, Devil Prince) – Son of the Demon King and a half-angel mother. Born with a cursed duality: demonic fire but laced with fragments of divine light. The demon court despises him for being “tainted.” He hides his vulnerability under arrogance, but deep down, he craves belonging.



Caelum (Top, Angel Prince) – The heir to the Angelic Throne, pure, disciplined, trained to protect heaven. Cold in demeanor, but beneath the golden exterior lies a heart capable of fierce devotion.

Episode 1 – The Chains of Light

The throne room of the Demon King was chaos. Shadows writhed along the black marble floor, snarling like beasts. At the center of it all, Lucien collapsed to his knees, clutching his chest as pain tore through him.

His wings ripped open behind him—one a jagged stretch of midnight black, the other blazing with white feathers that burned like fire. The court hissed in horror.

“A disgrace…”

“Half-blood filth…”

“Kill him before he tears this realm apart.”

Lucien’s head lifted, crimson eyes flashing. “Shut your mouths,” he snarled, his voice cracking as unstable power rattled the room. Flames licked his fingers, but sparks of holy light spilled through them—unstable, deadly.

From the other side of the chamber, a figure approached. Bright, radiant, terrifying in his stillness. The Angel Prince. Caelum.

His golden gaze swept the hall before locking on Lucien—like a predator sighting prey.

The Demon King’s voice thundered, silencing the court.

“My son is breaking. His cursed angel blood will kill him… unless bound by divine grace. So here is my condition—” He pointed a clawed hand at Caelum.

“Bind him. Wed him. Chain him to your soul. Only then will he live.”

Lucien’s eyes widened. He staggered to his feet, fury twisting his expression.

“I don’t need him! I don’t need anyone!” His fists trembled as dark fire surged around him, but the white wing betrayed him, glowing brighter with every heartbeat.

Caelum stopped before him, close enough that their breaths mingled. His face was unreadable, carved from light itself. Then, softly, he spoke:

“You’re lying.”

Lucien froze.

Caelum’s hand shot out, catching Lucien’s jaw, forcing his head up. Gasps filled the hall.

“You’re breaking apart, devil,” Caelum murmured, voice low but dangerous. “And I don’t let what’s mine fall to pieces.”

Lucien struggled, but Caelum’s grip only tightened. Their eyes locked—fire against gold.

“I am not yours!” Lucien hissed, hatred dripping from every word.

Caelum leaned in, his lips brushing against Lucien’s ear as he whispered,

“You are now.”

The court erupted in chaos. Some demons screamed betrayal, others laughed in cruel delight. But Lucien? He could only tremble with rage—because the worst part was, his unstable powers calmed the second Caelum touched him.

And Caelum knew it.

I.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i.i

The Demon Court stank of smoke and blood, their whispers crawling across the walls like snakes. Lucien stood bound in crimson chains that burned his skin with every twitch. His jaw was clenched, crimson eyes locked on the figure beside him—the golden Angel Prince who radiated light as if the very air bent to his will.

At the head of the hall, the Demon King raised his clawed hand.

“Tonight, the bond will be forged. My son will live. And Heaven will pay the price of binding themselves to Hell.”

Gasps, laughter, and curses rippled through the room.

“He’ll taint the angel.”

“No—maybe the angel will break him first.”

“Or maybe both will destroy each other, and we’ll be free of them both.”

Behind the court’s jeering faces, shadows moved in secret. A cluster of high demons, their horns etched with blood runes, leaned together.

“Once the angel is chained to him, he will be vulnerable.”

“Yes… we strike when they are bound. Kill the half-blood and the angel in one breath.”

“No throne, no prophecy fulfilled.”

They smirked, already weaving treachery in silence.

But Lucien’s focus wasn’t on them. His eyes never left Caelum.

“You really think I’ll let this happen?” Lucien snarled under his breath, tugging at his burning restraints. “I’d rather rot in hellfire than be shackled to you.”

Caelum’s gaze slid to him, calm, sharp as a blade. He reached out and gripped Lucien’s chains, his hand glowing with divine power. The metal hissed, melting at his touch, until Lucien’s wrists were free—only to find Caelum’s hand clamped around them instead.

“You fight too much,” Caelum whispered, voice quiet enough that only Lucien could hear. “You don’t understand yet, do you? This isn’t a choice. You’re mine because I said so.”

Lucien spat, trying to yank free, but his knees buckled. His chaotic power—half light, half shadow—was spiraling again. Flames burst from his fingertips, searing the floor, but Caelum pulled him close, pressing their foreheads together. The golden aura of an angel wrapped around them both, and instantly, the storm inside Lucien stilled.

Lucien’s breath hitched, his pride burning.

“Why… why does it stop when you touch me?” he demanded.

Caelum smirked, his voice dripping with possession.

“Because your body already knows who it belongs to.”

The court went silent as Caelum raised his glowing hand high. A halo of fire and light flared between them, transforming into a chain of burning gold. It wrapped around Lucien’s throat, down his chest, and then around Caelum’s hand, binding them together.

The Demon King roared, “The bond is sealed!”

Lucien gasped as the golden chain pulsed, sinking into his skin like molten fire. It was permanent, unbreakable. He stumbled, teeth clenched, fury in his eyes.

“You bastard…” he hissed at Caelum.

But Caelum only leaned down, his lips brushing Lucien’s ear, his whisper sharp as a dagger:

“I told you. You are mine now. Even if I have to burn down both Heaven and Hell to keep you.”

The hall erupted with cheers, curses, and mutters. Behind the noise, the plotting demons slipped away, their whispers venomous.

“Let them play lovers and rulers. Soon, their bond will be their undoing. When the half-blood falls, the angel will fall with him… and both realms will bleed.”

The golden chain binding Lucien to Caelum still pulsed against his skin like fire, its glow seared into his collarbone. The court had begun to disperse, but whispers clung to the air like smoke.

Lucien sat rigid on the throne beside his father’s, chained by light to the Angel Prince standing at his side. His jaw was set, eyes burning. He hated the chain. He hated the bond. He hated Caelum most of all.

And yet… his power was quiet for the first time in years. The chaotic storm inside him slept whenever Caelum stood too close. That truth gnawed at him more than the chain itself.

“Get used to it,” Caelum murmured, his golden hand brushing the chain as though testing its strength. “Every breath you take is mine now.”

Lucien jerked away with a snarl. “I’ll cut your throat before I ever accept you.”

But before Caelum could answer, the torches in the chamber flickered, one by one. The shadows thickened. A sudden hiss cut through the silence.

“Now.”

Blades of black steel slashed through the dark. The high demons, cloaked in blood runes, surged forward. One lunged straight for Lucien’s chest.

Lucien’s eyes widened, too slow to react—until Caelum’s hand yanked him back against his chest. A golden shield burst outward, shattering the assassin’s blade to dust.

The attackers didn’t hesitate. They circled, chanting ancient curses. One roared, “The half-blood will not sit on this throne! Neither Heaven nor Hell will rule us!”

Lucien snarled, wings unfurling, his unstable powers flaring again. Fire and light shot wildly, burning the walls. His control snapped. His chest heaved, pain ripping through him.

Caelum’s arms closed around him like iron chains. “Focus!” he commanded, his voice sharp, merciless. “I said you only break for me—not for them.”

Golden wings tore open behind Caelum, filling the chamber with blinding radiance. He swept his hand across the hall, and the assassins screamed as searing chains of light wrapped around their throats, dragging them to their knees.

Lucien’s trembling slowed, his chaos quieting again under Caelum’s touch. His pride stung worse than the pain in his veins. He growled, “Let me go, damn you! I don’t need your help—”

Caelum’s hand gripped his jaw, forcing Lucien to meet his eyes. His voice dropped low, intimate, and terrifying.

“You always need me. And I’ll prove it tonight.”

The assassins choked, the golden chains crushing their necks until their bodies turned to ash. The court trembled in silence, too afraid to breathe.

Caelum dragged Lucien closer, his mouth brushing against his ear.

“The ritual is done. The enemies are dead. Now, husband…” He smirked, voice dripping with possession.

“…we seal this bond the way it was meant to be sealed.”

Lucien’s pulse hammered as the chain at his throat burned hotter, pulling him toward Caelum.

The Angel Prince leaned down, his whisper sharp and final:

“Tonight, you stop running.”