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ArabicHigh School DxD: The Lucifer's Devil Trigger — Chapter 1
Chapter 1: The Devil’s Legacy
The sky above the Underworld was a bruised, overcast gray, rumbling with the muffled warning of approaching thunder.
Inside the dimly lit room, Levi pressed his spine flat against the heavy oak door. He swept a desperate glance across the unfamiliar, opulent chamber before his legs gave out entirely, sending him sliding down the wood to collapse onto the cold stone floor.
‘Did I actually transmigrate?’
Crack—
A jagged bolt of lightning tore through the oppressive clouds, illuminating the room in a flash of stark white just as the torrential rain came crashing down against the stained glass.
In the afterglow of the lightning, Levi raised a trembling hand to massage his temples, his teeth gritted as he desperately tried to digest the fragmented memories violently surfacing in his mind.
The reality of his situation settled in like lead. The transmigration was real. Not only had his soul crossed over, but he was now trapped within the shrinking, underdeveloped body of a teenage boy.
His first name hadn’t changed; he was still Levi. But his surname carried a weight that could crush a world.
Levi Lucifer.
A direct descendant of the Lucifer Clan, the absolute apex of the Four Great Satans of the Old Satan Faction. He also had a half-brother. A boy named Vali.
At first, titles like the Old Satan Faction or the Four Great Satans hadn’t triggered any immediate panic. But the moment his brain unearthed the memories attached to the name ‘Vali’, the puzzle pieces violently clicked into place.
This was the world of High School DxD.
Levi had followed the series years ago, eventually dropping it due to the grind of his old life’s work schedule. Yet, the lore had left a deep enough impression on him to realize exactly how dangerous his current predicament was.
The more the fragmented memories merged with his consciousness, the colder the sweat on his back became.
His father was dead. His grandfather was an absolute lunatic. And as of right now, Levi was the only one left breathing in this sprawling, suffocating mansion.
Though he and Vali shared the same father, they were born to different mothers. Vali was a half-devil, half-human hybrid, whereas Levi was a pure-blooded devil. Logically, the pure-blood should have possessed the superior demonic talent, but reality had played a cruel joke on him.
Vali’s potential was monstrous, eclipsing even their father. He was the current host of the White Dragon Emperor.
And Levi? He was a pure-blooded devil with magical reserves so pitiful it was laughable. Even his hair was a stark, abyssal black, completely alien to the trademark silver of his lineage. His mother had died in childbirth. And his father?
His father had been casually slaughtered by his own grandfather, Rizevim Livan Lucifer, just five days ago.
It happened right after Vali managed to escape the compound. Rizevim, the strongest extraordinary in existence, killed whoever he pleased, whenever he pleased. Now, within this massive, echoing estate, aside from a handful of trembling servants, it was just Levi and Rizevim.
Levi knew this old monster’s profile perfectly from the original plot. Rizevim was a pure, unadulterated madman. Bored with the reality around him, the old devil had grown obsessed with the concept of invading other dimensions, particularly the EXE World, simply because it housed entities stronger than him.
The atrocities Rizevim committed in his own world were absurd. He forced his son to hunt down his own grandson, then executed his son for being too ‘cowardly’ when he failed. He was a creature who wanted nothing more than to awaken the Beast Emperor of the Apocalypse just to watch the world burn before he died.
Levi sucked in a sharp breath, the chill in the room suddenly biting at his neck. Who was to say Rizevim wouldn’t find him an eyesore tomorrow and casually put a hand through his chest?
If he had possessed these memories a week ago, he would have risked everything to flee into the night alongside Vali. Vali only survived because a few loyal servants threw their lives away to buy him time, but a slim chance of survival was infinitely better than waiting for death in this gilded cage.
As he leaned heavily against the door, lost in the grim calculus of his survival, a voice suddenly drifted from the corridor behind the wood.
Very close. Terrifyingly close.
“Levi. Open the door.”
His heart skipped a beat. He would never mistake that voice.
Levi had absolutely no desire to look at that monster. But hiding was a death sentence. He took a slow, measured breath, locked his jaw, and forced himself to his feet. Shoving his panic down into the deepest recesses of his mind, he reached out and turned the brass handle.
A man stood in the dimly lit hallway. He wore the ornate, dark robes and armor of the Lucifer bloodline. He looked strikingly similar to Vali, bearing a light dusting of stubble on his jaw, yet his features remained unnervingly youthful.
Rizevim stepped into the room without waiting for an invitation.
The son of the original Lucifer and Lilith, the Mother of Devils. The strongest extraordinary, wielding the absolute, rule-breaking ability of Sacred Gear Nullification.
The moment his boots crossed the threshold, his gaze snapped directly onto Levi.
By blood, they were family. But the look Rizevim gave him was as cold and clinical as a butcher inspecting a slab of meat. He scanned the boy from head to toe. To Rizevim, Vali at least possessed the entertainment value of a toy worth breaking. But Levi? Levi didn’t even qualify as a distraction.
Despite carrying the Lucifer bloodline, the boy’s demonic energy was pathetic, and his physical constitution was frail. Pure-blooded devils couldn’t even wield Sacred Gears, and this child was a slow learner with zero unique traits. A complete, irredeemable waste of space.
Normally, Rizevim wouldn’t even spare him a passing glance. But the board had changed.
Vali had run away, and his useless son was now a corpse. By default, it was time for his equally useless grandson to step up and occupy a seat.
Rizevim had his own grand designs to attend to. For the next few decades, someone needed to act as a buffer against Sirzechs, the rising star pushed forward by the Reformist Faction. With his son dead and Vali gone, the Old Satan Faction desperately needed a Lucifer to anchor their legitimacy.
Sirzechs was powerful, but he was naive. He didn’t pull weeds up by the roots. After the brutal civil war, the pure-blooded devil population had been decimated. Even if the Old Satan Faction was currently composed of cowards and trash, the Reformist Faction was forced to keep them around as a political shield against the Angels and Fallen Angels.
As long as the other two factions remained a threat, the Reformists had to waste resources keeping an eye on the old guard.
Looking at it from that angle, Rizevim mused, Levi being a worthless weakling wasn’t entirely a bad thing. A piece of trash standing among other pieces of trash wouldn’t draw any unwanted attention. Only someone this unremarkable had the potential to be groomed into a perfect, disposable inside agent. Vali’s light was too blinding for the shadows. His son had been too pathetic to even try.
Rizevim stared down at the boy. To his mild surprise, Levi didn’t flinch. The boy actually dared to meet his eyes. Rizevim deliberately kept his mouth shut, letting the suffocating silence and his sheer aura press down on the room, expecting the child to break.
Levi didn’t look away.
‘Even trash has its uses,’Rizevim thought, a faint, mocking smirk touching his lips.’At least he has a spine.’
But Levi wasn’t holding his gaze out of some newfound demonic courage. The very second Rizevim had entered the room, a mechanical chime had echoed in the center of Levi’s mind.
Now, as the seconds ticked by, that ethereal voice spoke again.
`[Maintain eye contact with Rizevim for one minute. Condition met.]`
`[Check-in successful.]`
`[Congratulations to the host for obtaining the reward: Yamato. Automatically bound; exclusive use.]`
`[The reward has been transferred to the system inventory.]`
“Are you really going to the House of Lucifer just to take care of that boy?”
Rias Gremory stared at the silver-haired woman standing before her. Grayfia had donned her immaculate maid outfit once again, a sight Rias couldn’t quite comprehend.
Grayfia Lucifuge had personally turned her back on the Old Satan Faction, defecting during the war, yet now she was willingly walking right back into the viper’s nest to serve someone else. Even though Rias was still young, she fully understood the sheer volume of venom and scorn Grayfia would face the moment she stepped foot in that territory.
But this woman, whose power rivaled Serafall Leviathan for the title of the strongest female devil, possessed a will of absolute iron.
“Rias, the Old Satan Faction is not the Reformist Faction,” Grayfia replied, her voice a smooth, unbothered calm. “They will undoubtedly target me. But given my strength, those decaying nobles won’t dare to try anything in the light of day.”
The Old Satan Faction had been thoroughly crippled during the civil war. The moment Rizevim vacated the premises, they wouldn’t even have a single Satan-class devil left to their name. Grayfia wasn’t worried about her own safety in the slightest.
Her concern lay entirely with Levi.
“His mother was my dearest friend,” Grayfia continued, her silver eyes softening by a fraction. “Before she passed, she entrusted his life to me. Levi was born frail. His father is dead, his brother has fled, and the one who executed his father was his own grandfather… Now that Rizevim has slipped out of the Underworld, that child is entirely alone. Compared to whatever political ostracization I might face, he is the one truly standing on the edge of a cliff.”
With the final clasp of her luggage snapping shut, Grayfia picked up her brown leather suitcase.
The Queen of Annihilation reached out, her gloved hand gently patting the top of Rias’s crimson hair. A rare, fleeting smile graced her lips.
“Do not worry about me. I am a daughter of the Lucifuge family. For generations, we have served as Lucifer’s confidants. Taking care of his bloodline is my sworn duty.”
She withdrew her hand, and the warmth vanished from her expression, replaced instantly by her signature, icy professionalism.
“Go back inside. And tell your brother… we truly are not suitable for one another. He has his path to walk, and I have mine. Goodbye, Rias.”
Without looking back, Grayfia turned and walked down the grand corridor, her steps measured and silent as she headed toward the distant, decaying estate of the Lucifer Clan.
Rias watched the silver-haired maid until she completely disappeared into the shadows of the archway. Only then did the young Gremory turn her head toward the empty corner of the hall.
“Brother. Grayfia said you aren’t suitable.”
The shadows shifted. Sirzechs, the current Lucifer, stepped out into the light.
He stared down the empty hallway where Grayfia had vanished, a heavy, melancholic sigh escaping his lips. He truly loved that woman. But Grayfia had never once looked at him with anything more than polite distance.
He had prepared himself for the rejection long ago, but hearing the finality of it still placed a heavy stone in his chest.
There was nothing to be done. Sirzechs was not the type of man to pester a woman who had made her boundaries clear. He could only silently wish her a safe journey into the dark.
Sighing softly, Sirzechs turned his back on the corridor. “Come, Rias. Let’s go back.”
“Yamato… it truly lives up to the legend.”
Levi stood in the center of his opulent bedroom, his fingers wrapped tightly around the braided hilt of the katana. He drew the blade from its dark scabbard. The steel hummed, catching the dim light of the room.
With a casual flick of his wrist, he swung the sword at the empty air in front of him.
He barely used any physical strength, yet the silver edge cleaved straight through the fabric of reality, leaving a jagged, pitch-black tear suspended in the air. The void crackled with dark energy, only slowly knitting itself back together the moment Levi clicked the blade back into its sheath.
“Even a novice like me can effortlessly sever space.”
Witnessing the sheer absurdity of the strike, Levi felt the heavy knot of anxiety in his chest finally loosen. At the very least, his offensive capabilities were now secured.
And he knew the true depths of Yamato went far beyond a simple spatial tear. The core concept governing the blade was Separation. Simply put, as long as the wielder believed an object could be cut, even abstract, conceptual laws could be severed in a single stroke.
Cutting through dimensions, opening portals across realms. In the original DMC lore, it could even perfectly separate a being’s demonic and human halves. The absolute lethality of this weapon was indisputable. It was a power that easily rivaled, if not surpassed, the highest-tier Sacred Gears of this world.
“Finally. I have the capital to keep myself alive.”
With a mere thought, the katana dissolved into motes of blue light, vanishing into his system inventory.
Strictly speaking, Levi now possessed two ‘Sacred Gears’. One was Yamato, and the other was the spatial inventory provided by his newly awakened system.
The mechanics were straightforward. It was a Check-in System. As long as he encountered significant figures recognized by the system’s parameters and fulfilled the specific conditions it demanded, he would receive high-tier rewards. With this tool anchored to his soul, ascending to the apex of this world was no longer a pipe dream—it was simply a matter of time.
Levi walked over to the towering stained-glass window, pushing it open to let the damp, cold wind wash over his face. He looked out over the sprawling, gothic architecture of the Lucifer territory.
The sky of the Underworld was perpetually gray, forever lacking the brilliant blue of the human realm. Yet, as he stared out at the horizon, Levi felt as though the entire world had suddenly brightened.
Rizevim was gone.
The madman hadn’t just left the estate; he had vanished from the Underworld entirely.
‘He’s probably off laying the groundwork for the Khaos Brigade,’Levi thought, a cold, calculating light entering his dark eyes.’But for me… this is a godsend.’
When Rizevim abandoned his post, he had taken the most dangerous, fanatic veterans of the Old Satan Faction with him. The overall military might of their faction had plummeted overnight.
But the silver lining was massive. What remained of the Old Satan Faction was weak, terrified, and desperate for leadership. They would be infinitely easier to control. At least in the short term, the remaining nobles wouldn’t dare to make any suicidal moves that might drag Levi down with them.
The board was clear. And it was his turn to play.