Far beneath the Demon Kingdom, beyond the borders known to ordinary demons, lay a place that had been erased from existence.
A world that no demon was permitted to enter.
A world sealed away by ancient law.
The Underworld.
For thousands of years, its gates had remained untouched.
Until tonight.
Lucifer stood before the enormous ancient walls, staring at the intricate symbols carved deep into the black stone. Strange languages covered every inch of the entranceβlanguages so old that even the oldest demons could no longer understand them.
The gate had been sealed for a reason.
No ordinary demon could open it.
Only one born with the Original Demon Blood could break its seal.
Lucifer slowly raised his arm.
His eyes had become dark and hollow.
His fingernails elongated, becoming sharp like blades.
With one swift movement, he sliced his arm.
Blood immediately trickled down his skin.
He held his arm over the ancient markings.
A single drop fell.
Drip.
The moment Lucifer's blood touched the stone, the entire wall trembled.
A deep, hollow sound echoed through the forgotten realm.
Boom.
The ancient symbols began glowing one after another.
Thenβ
CRACK!
The enormous stone doors slowly separated.
Darkness poured from the chamber.
Lucifer stepped forward without hesitation.
The doors closed behind him.
He was alone.
Or at least, he thought he was.
---
The deeper Lucifer walked, the colder the air became.
There were no flames.
No torches.
No signs of life.
Only darkness.
Yet Lucifer wasn't afraid.
He had been to this place once before.
Long ago.
When he was still young enough to believe that power could solve every problem.
At the end of the passage stood a massive chamber.
Lucifer stepped inside.
His eyes immediately fell upon the ancient altar standing at its center.
Beside it lay a book.
A black book covered in what appeared to be dried blood.
The Forbidden Book.
A book that had been sealed away for thousands of years.
Lucifer approached it.
He reached out.
The moment his fingers touched the cover, the entire chamber shook.
The book opened by itself.
Page after page turned rapidly before stopping.
Lucifer stared at the first page.
Four words had been written across it in blood.
ONLY ONE WILL SURVIVE.
His expression didn't change.
"Then let it be."
He turned the page.
Ancient symbols filled it.
Lucifer began reciting the incantation.
One word.
Then another.
The deeper he went into the spell, the brighter his eyes became.
A faint flame appeared inside his pupils.
The ground beneath him suddenly groaned.
CRACK!
Lucifer stopped.
The stone floor began separating.
A circular platform slowly rose from beneath the ground.
Ancient symbols covered its surface.
Five deep circles were carved into the platform.
Five places where blood was required.
Lucifer stared at it.
He knew exactly what it was.
The Blood Hall.
The place where his ancestor, Arnold, had once attempted the same forbidden ritual.
Arnold had wanted to create something beyond the natural limits of demon blood.
He had succeeded.
But he had created something else with it.
Darkness.
A darkness so powerful that it nearly consumed the entire realm.
What followed became known as the First Demon War.
Kingdoms burned.
Countless supernatural beings died.
Demons fought demons.
Vampires joined the battle.
Witches sacrificed themselves to contain the darkness.
Even dragons were forced to enter the war.
It took generations to destroy what Arnold had unleashed.
Afterward, the Blood Hall was sealed.
The ritual was forbidden.
Every record concerning it was destroyed.
Or so they believed.
Lucifer had found it.
And now he intended to use it.
He knew the consequences.
He knew what Arnold had done.
He knew what could happen if he failed.
But none of that mattered anymore.
The Demon Kingdom was already approaching chaos.
If he died without an heir, the clans would tear his kingdom apart fighting for his throne.
He couldn't allow that.
He needed an heir.
A true heir.
No matter the cost.
Lucifer stepped onto the platform.
"If the world must pay the price..."
His eyes burned brighter.
"...then so be it."
He began the incantation again.
---
Blood.
Power.
Magic.
The three forces began moving together.
Lucifer walked around the first circle and allowed his blood to drip into it.
Then the second.
The third.
The fourth.
The ancient symbols began glowing.
Purple light spread across the platform.
Lucifer continued reciting the incantation.
His voice echoed throughout the chamber.
The ground trembled beneath his feet.
His breathing became heavier.
Still, he continued.
Then he stepped into the center.
The final circle.
Lucifer closed his eyes.
His hands slowly opened.
His power erupted from his body.
Dark energy poured from him and into the ancient platform.
The blood began moving.
Not dripping anymore.
Flowing.
It traveled along the engraved symbols like living veins.
One line connected to another.
Then another.
Until every symbol on the platform was connected.
The purple light became brighter.
Suddenlyβ
BOOM!
The entire chamber shook violently.
Dust rained from the ceiling.
Lucifer stumbled but remained standing.
Then the ceiling opened.
A brilliant red moon appeared above him.
Its light poured directly onto the platform.
Lucifer's body began trembling.
The ritual was consuming him.
His strength was disappearing.
His blood was being drained.
His powers were being pulled from his body.
But he refused to stop.
He couldn't.
Not now.
Not after coming this far.
The red moonlight intensified.
The platform shook harder.
Lucifer gritted his teeth.
"Come forth..."
The chamber shook.
"Create what I command..."
His voice weakened.
"Give me an heir..."
The darkness answered.
A deep vibration echoed from beneath the platform.
Lucifer's eyes widened.
Something was responding.
He poured the last of his strength into the ritual.
Thenβ
BOOM!
A wave of energy exploded across the chamber.
Lucifer was thrown backward.
He hit the stone floor hard.
For several seconds, he couldn't move.
The red moon slowly disappeared as the ceiling closed.
The glowing circles began fading.
Silence returned.
Lucifer slowly lifted his head.
In the center of the platform was something new.
A small golden and pale-purple emblem had formed where the ritual had taken place.
It pulsed faintly.
Once.
Twice.
Like a heartbeat.
Lucifer stared at it.
His breathing was ragged.
He had done it.
But the creation wasn't complete.
It would take days.
Perhaps longer.
The emblem would have to develop before his creation could take form.
Lucifer tried to stand.
His knees nearly gave way.
He had lost too much blood.
Too much power.
But there was still one final step.
The ritual demanded a physical part of its creator.
Lucifer looked down at himself.
A faint smile appeared.
"Of course."
He made a small cut and offered the required piece of himself to the glowing emblem.
The moment it touched the surfaceβ
WHOOSH!
The emblem swallowed it completely.
The chamber fell silent.
Lucifer stared at it.
Then he smiled.
"It is done."
The golden-purple emblem pulsed again.
Thump.
Lucifer's smile widened.
"Now..."
He looked into the darkness.
"...we wait."
---
Back in the Demon Kingdom, Lucifer returned to his chambers.
The doors opened.
He immediately noticed someone standing inside.
Aiden.
The assistant turned at the sound.
His eyes widened.
"Your Lordship."
Lucifer raised an eyebrow.
"What are you doing here?"
Aiden bowed.
"I came to inform you that the meeting has been arranged."
Lucifer walked past him.
"They refused."
Aiden hesitated.
"Some of the demon clans are reluctant to attend."
Lucifer stopped.
For a moment, his expression was unreadable.
Then he continued walking.
"If they don't want to come, don't force them."
He turned slightly.
"I have no intention of begging anyone to hear what I have to say."
Aiden nodded.
"Yes, Your Lordship."
He wanted to ask where Lucifer had been.
He wanted to ask why his master looked exhausted.
He wanted to ask about the strange dark aura surrounding him.
But one look at Lucifer's face silenced every question.
Aiden bowed.
"I'll leave you to rest."
Lucifer gave a slight nod.
Aiden left.
The door closed.
Finally alone, Lucifer walked into his bathroom.
He removed his blood-stained garments and stepped into the warm water.
The heat soothed his exhausted body.
His wounds were already beginning to heal.
Lucifer closed his eyes.
For the first time that night, he allowed himself to breathe.
He thought about the ancient ritual.
The forbidden Blood Hall.
The creation waiting beneath the moon.
He had risked everything.
His blood.
His power.
His kingdom.
Perhaps even his life.
But he didn't regret it.
All he wanted was an heir.
Someone who could sit upon his throne.
Someone who could keep the Demon Kingdom from falling into the hands of those who had no right to rule it.
Lucifer slowly opened his eyes.
A strange uneasiness settled in his chest.
For reasons he couldn't explain, he suddenly remembered the words written in the forbidden book.
ONLY ONE WILL SURVIVE.
His expression darkened.
"What did I create?"
Far beneath the kingdom, inside the forbidden Blood Hall, the golden-purple emblem pulsed again.
Thump.
A tiny crack appeared across its surface.
Then another.
Something inside moved.
And for the first time in thousands of years...
the forbidden creation had begun to breathe.