The pain came first.
Algernon's eyes snapped open as agony lanced through his skull like white-hot iron. He gasped, lurching upright in bed, hands flying to his temples. The pressure built behind his eyes, each heartbeat sending fresh waves of torment through his head.
What—where—
The room swam into focus. Unfamiliar. Empty. Silent except for his ragged breathing and the thundering of his pulse in his ears.
Then the memories hit him.
Two lives collided in his mind—the death that ended one existence, and the awakening that began another. He remembered watching High School DxD on a lazy afternoon. He remembered the truck that came out of nowhere. He remembered waking up in this world as an infant, understanding everything yet unable to speak, forced to watch as war consumed his new parents and left him alone.
Algernon Gremory. Ten years old. Orphan of the Gremory Branch House. A demon without even a bloodline power to his name.
He should have felt despair. Instead, electricity ran through his veins.
I'm in DxD. I'm a demon. Magic exists here. Power exists here.
His breathing steadied as excitement replaced panic. This was real. This was his second chance at...
[Host has awakened. Welcome to the Conqueror System.]
Algernon froze.
The voice was cold, mechanical, and yet it resonated through his very soul. Before him, a translucent golden screen materialized in the air, text scrolling across its surface.
[You have been chosen as one of the Nine Supreme System Hosts. Should you fail to conquer the realms and rise to the top of all worlds, the system will seek another capable host.]
His heart hammered against his ribs. A system. An actual system, like in those web novels he'd devoured in his past life.
"Are you conscious?" Algernon's voice came out steadier than he felt. "Can you communicate?"
[I am not sentient. I am a tool created to guide the host toward one of nine Supreme thrones. I am bound to THE CONQUEROR throne.]
"And if I fail?"
[All granted powers will be retracted. Another host will be selected. Many before you have failed.]
The weight of those words settled on his shoulders. This wasn't a game. This was survival dressed up as opportunity.
"Show me my status."
The screen shifted, displaying information that made his breath catch.
_____________________________________________________
STATUS
Name: Algernon Gremory
Age: 10
Race: Demon (No Bloodline Power)
Lifespan: Infinite (Chosen as Supreme Candidate)
Class: Tier 1 - Low Class (Peak)
Titles: None
Main World: Draconic Deus
Skills:
Basic Demon Physiology (Low-Class physical enhancement, minor energy manipulation) Dimensional Awareness (Dormant)
Talents: [LOCKED]
Dimensional Jump Gate Creation
Unlock Condition: Conquer Main World
______________________________________________________
MAIN QUEST: Conquer the Demon Race
Objective: Become the Supreme Ruler of all demonkind
Reward: Tier advancement + Unknown rewards
Progress: 0%
_____________________________________________________
SIDE QUEST: The Crimson Princess
Objective: Win the heart of Rias Gremory and claim her virginity with her genuine consent
Time Limit: 8 years
Current Status: Rias Gremory is engaged to Riser Phenex
Reward: Sub-tier advancement in both Magical and Physical capabilities
[Additional Functions: Inventory and Harem Management are currently locked.]
__________________________________________________________________
Algernon stared at the screen, his mind racing through implications and possibilities.
Eight years. He had eight years until Rias would be nineteen, until canon would truly begin. Eight years to transform from a powerless branch house orphan into someone capable of standing against the likes of Riser Phenex.
The side quest alone would have seemed impossible—Rias Gremory was nobility, engaged, and surrounded by political machinations that had been set in motion long before he arrived. But the main quest? Conquering an entire race?
A grin slowly spread across his face.
"System, you mentioned granting me power. What exactly—"
Heat flooded his body before he could finish.
Algernon gasped as energy surged through every cell, every nerve ending igniting with newfound strength. His muscles tensed and released, denser and more responsive than moments before. Magic pooled in his core, a wellspring of demonic power that hadn't existed seconds ago.
[Initial power grant complete. Host has been elevated to Low-Class Peak in both physical and magical capacities.]
He flexed his fingers, watching small motes of red energy dance across his knuckles. Even this tiny display would have been impossible for him yesterday. The difference was night and day.
But it wasn't enough. Not for what lay ahead.
"Low-Class Peak," he murmured, clenching his fist and extinguishing the energy. "Against Satan-class devils and heavenly dragons, I'm barely an insect."
The path ahead crystallized in his mind. He needed strength, influence, and allies. He needed to understand the political landscape of the underworld and position himself within it. Most importantly, he needed to grow stronger before the threats of canon arrived.
Riser Phenex. The Khaos Brigade. Trihexa. Gods and Dragons and beings that could erase him with a thought.
But that was the future. Right now, he was a ten-year-old demon in an estate that had belonged to his parents, with eight years before everything truly began.
Algernon stood from the bed, his legs steady despite the transformation his body had just undergone. He walked to the window and gazed out at the Underworld sky—a perpetual twilight that painted everything in shades of crimson and violet.
"The Conqueror System," he said softly. "Fine. If conquest is what you want, that's what you'll get."
His reflection stared back at him from the glass—young, unremarkable, but with eyes that burned with ambition that transcended age.
He had died once already. He wouldn't waste this second life.
Eight years to capture the heart of the most sought-after heiress in the underworld. A lifetime to conquer an entire race and claim a Supreme throne.
The challenge should have terrified him.
Instead, Algernon smiled.
"Let's begin."
(END OF CHAPTER)
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