He died a nobody—forgotten, unloved, and powerless in a world that never cared. But death was not the end. It was the beginning.

Reborn in a void outside time, he awakens with the same abilities as Muzan Kibutsuji—the progenitor of all demons. But unlike Muzan, he is not burdened by weakness. No sun can burn him. No blood can poison him. No boundary can contain him. His cells regenerate endlessly, his strength multiplies eternally, and his mind evolves far beyond anything mortal or divine.

He does not seek peace. He does not crave approval. He does not pretend to be a hero.

With every world he enters, he infects the laws of reality itself. He creates his own demons—beautiful, loyal, and unstoppable. Kingdoms fall beneath his gaze. Gods tremble at his feet. Heroes rise only to kneel or perish.

From the blood-soaked lands of feudal Japan to the towering cities of alien civilizations, from dimensions ruled by sorcery to universes governed by science, he walks a path carved in power and desire. He takes what he wants. He reshapes what he hates. He leaves only ruin—or paradise—for those who please him.

He is evolution unchained. A multiversal tyrant. A seductive nightmare.

This is not the story of a man seeking redemption.
This is the legend of a god who does whatever he wants.

All characters, worlds, and elements not originating from my own original creations (OCs) are respectfully credited to their rightful creators. I claim no ownership over any existing intellectual properties referenced in this work. This story is a fan-made project created for entertainment purposes only. Thank you for reading.

Alright, listen up, everyone!Yes—this is obviously going to be a harem story, and yes—it's going to be a big one that spans across the multiverse. But let's not get too ahead of ourselves just yet.


For this world, I'm planning to introduce between 2 to 5 girls, depending on how I'm feeling as the story unfolds. I'm not rushing it—each one will have meaning, presence, and power. No throwaways here.


Got any favorite characters you'd love to see become part of Lucivar's dark empire? Drop your suggestions below. If your pick fits the energy, she might just find herself bound to the Abyss.


Let the seduction, domination, and multiversal conquest begin.


Potential Abyssal Consorts (Demon Slayer World):


Author’s Note - Harem