.⚠️ Content Warning:

This book contains dark themes, including possessive behavior, obsession, emotional manipulation, violence, and a morally grey anti-hero who doesn’t understand the word no.

It explores an intense, dangerous romance between a human and a demon who doesn’t play by human rules.

If you’re looking for soft, safe love—this is not that story.

But if you crave the kind of love that consumes, corrupts, and never lets go...

Welcome to Demon’s Obsession.

.Prologue

700 Years Ago – France

The man screamed as his spine cracked against the cold stone wall, blood trailing down his chin like a river that had lost its course.

Lucien watched.

He didn’t blink. Didn’t speak. Didn’t need to. His presence alone suffocated the room like smoke—thick, cloying, inescapable. The torches on the wall flickered violently, shadows dancing like demons eager to witness the kill.

“Please,” the man croaked, crawling backward, his limbs trembling. “It was a mistake—”

“You made a deal,” Lucien said coldly, voice low and sharp like broken glass. “And you broke it.”

“I— I didn’t mean to—”

Lucien moved.

One moment, he was standing. The next, his hand was around the man’s throat, lifting him effortlessly off the blood-soaked floor. Bones creaked. Flesh bruised under the pressure of fingers that no longer remembered mercy.

“You begged me to save your dying wife,” Lucien whispered into the man’s ear, his breath cold despite the fire around them. “You offered your soul. You promised your firstborn. I gave you both time and power—and you gave me betrayal.”

“I couldn’t—she was innocent—”

Lucien smiled, and it was the most terrifying thing in the room.

“So am I,” he said mockingly. “A demon with principles.”

He drove his claws—blackened and curved—straight into the man’s chest.

There was no scream this time. Only a wet, gasping sound as Lucien reached in, curling his fingers around a heart that still tried to beat in defiance.

Foolish.

He ripped it out slowly, watching the man’s wide, wet eyes as the life bled from them. The heart thudded once in his hand. Then it stilled.

Lucien dropped the body. It hit the ground like a sack of rotting meat.

Blood pooled at his feet. It didn’t bother him. Blood was honest. It told truths men tried to bury.

He turned toward the shadows behind him. The demon who’d watched the whole thing—a lesser one, something born of ash and fear—stepped forward, nervous.

“Was it… necessary?” it asked in a rasp.

Lucien didn’t answer. He didn’t need to.

He walked past the corpse, the blood, the broken promises.

He didn’t kill for pleasure. Not anymore.

He killed for law. For consequence. For the ancient pacts that held the realms in balance. He was a demon, yes—but not a beast. Not unless he was forced to be.

And betrayal always forced his hand.

He stepped out into the storm, rain mingling with the blood on his skin. Somewhere, lightning cracked the sky in half. Somewhere, another human was praying to gods who weren’t listening.

Lucien wasn’t listening either.

But he was watching. Always watching.

And he would remember this: humans lie, they break, and they beg.

He wouldn’t make that mistake again—for another seven hundred years.

Until her.

Author’s POV

The moonlight bled through the high windows of the luxury Manhattan apartment, casting pale silver shadows across the marble floors. The clock on the wall blinked 3:17 AM. The world outside was quiet, asleep. But inside Krisha Kapadia’s apartment, the silence was broken by the sound of her gasping breath.

She jolted upright in bed, eyes wide, sweat clinging to her skin like fear itself. Her chest rose and fell rapidly, as though she’d been running. And in a way, she had.

From him.

From it.

From the nightmare that wouldn’t let go.

She pressed a trembling hand to her chest, trying to slow the panicked thud of her heart. But her mind was still trapped in the dream—no, not a dream. Not anymore. It felt too real, like a memory borrowed from something ancient and impossible.

The image burned behind her eyelids: a vast, shadowy forest. Her feet bare against cold soil. The sound of something hunting her. A lion—massive, golden-eyed, teeth bared. She was running, always running. Until something—something darker, colder, and terrifyingly beautiful—appeared from the shadows and tore the lion apart like paper.

Not just killed it.

Destroyed it.

And then, it looked at her. Straight into her soul. As if it had found what it was searching for.

A soft knock at her bedroom door broke the silence. Then it opened, and Aubrey Lawrence stepped inside, wrapped in a blanket, her usually styled blonde hair a sleepy mess.

“Krisha?” she whispered, flipping on the bedside lamp.

Krisha didn’t speak. She couldn’t. Her lips were parted, her eyes wide, her entire body trembling beneath her silk sheets. Her breaths came in shallow little gasps, hands clenched in the fabric like it could anchor her to this world.

Aubrey’s face softened with concern. “Did you dream that nightmare again?”

Krisha gave her a slight nod. Her throat was too tight to speak.

Aubrey crossed the room and sat on the edge of her bed, pulling her into a gentle hug, careful but close. Krisha didn’t cry—she wasn’t that kind of girl. But her fingers clutched the back of Aubrey’s hoodie like a lifeline.

“I swear you’ve had this dream since college,” Aubrey said softly. “The lion. The forest. The... thing that saves you.”

“It didn’t save me,” Krisha finally whispered. Her voice was hoarse. “It killed. Violently. And then it looked at me like... like I was next.”

Aubrey pulled back to look at her. “Krish, you know it’s not real, right?”

Krisha didn’t answer.

Because she wasn’t sure anymore.

It wasn’t just a dream. It lingered. It haunted her like a shadow stitched to her bones.

She didn’t know what that creature was. Only that every time it came closer. Every time it looked at her longer. Every time… it felt less like a nightmare.

And more like a warning.

Aubrey brushed Krisha’s hair out of her face. “You want me to sleep in here?”

Krisha hesitated, then nodded once more.

As Aubrey slid beneath the covers beside her, Krisha lay back against the pillow, her eyes wide open, staring at the ceiling. She didn’t tell her best friend the part she always left out—the part that truly terrified her.

Every time she had the dream…

She felt less afraid of the monster that killed the lion.

And more afraid that some dark, secret part of her wanted him to find her.

.Heart surgeon in training. Rational. Fierce.

Krisha is a second-year cardiothoracic resident at Mount Sinai Medical School. Sharp, determined, and grounded in science, she has no time for distractions—until she meets a patient whose heart literally shouldn’t beat. Fiercely independent with a kind soul, Krisha is about to discover that some hearts break all the rules of medicine... and reality.

.CEO. Demon. Enigma.

Lucien Vale is the immortal chairman of Vale Industries, a powerful and private man hiding a dark past behind designer suits and cold eyes. Charismatic yet distant, he commands every room—never aging, never losing control. Beneath the surface? A demon bound by centuries-old secrets, slowly being pulled back into a war he thought he left behind.