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Reborn as supreme sign-in system wielder

Haruto Sato was an ordinary manager in a mundane world, his life defined by the monotonous grind of work and a growing sense of emptiness. But everything changes when he is suddenly struck by a speeding truck—Truck-kun. In the void between life and death, Haruto meets the Supreme God of the Omniverse, who reveals that Haruto's death was a cosmic mistake. The truck was meant to eliminate a future threat to Earth, but Haruto was accidentally caught in the crossfire. To atone for this error, the Supreme God offers Haruto a second chance: a new life in a fantastical world of magic, dragons, and demons. Reborn as the son of a powerful union—his mother, the sister of the Demon Emperor, and his father, a mighty dragon—Haruto inherits both a demonic and draconic bloodline. But his extraordinary rebirth doesn’t stop there. As a final gift, Haruto is granted a powerful "Sign-In System," which will bestow upon him incredible abilities as he grows. On his first sign-in, Haruto receives the strongest body in the world, perfectly attuned to his unique bloodline, and a rare potion that strengthens and harmonizes his demonic and draconic heritage. Now, in a world where power is everything, Haruto must navigate his new life, unlocking the potential of his dual bloodlines and rising to become a force to be reckoned with. But as he grows stronger, he will discover that his new world harbors ancient secrets and formidable enemies that could threaten not only his life but the balance of the entire multiverse.

MuhammadZain · Fantasy
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49 Chs

Chapter 41: The True Test - Entering the Dungeon of Ashborn

Lucifer, known to only a few as Aldric, had spent a year learning the intricacies of warfare, gaining the trust of the elite Black Legion, and mastering the power that lay within him. His shadow army had grown vast, filled with powerful soldiers and creatures he had extracted during battle. With every mission, every skirmish, he became more feared by his peers, and yet no one suspected the depth of his true power.

But despite his rise through the military ranks and his control over the battlefield, there was still one lingering challenge: the final test of the Shadow Monarch's legacy. Aldric had inherited many powers from Ashborn, the first Shadow Monarch, yet the system had created a specific dungeon designed to fully unlock Ashborn's abilities.

Aldric knew it was time.

---

The Dungeon of Ashborn: The Entrance

One night, after yet another successful mission with the Black Legion, Aldric activated the Sign-In System to check his next task. The system greeted him with a familiar message:

[Sign-In Complete: You have unlocked the final Dungeon of Ashborn. Complete the dungeon to fully unlock the power of the First Shadow Monarch.]

The words sent a shiver of anticipation through Aldric's spine. The Shadow Monarch's powers had already made him incredibly formidable—allowing him to control the very essence of shadows, summon an endless army of shadow soldiers, and wield powers that few in this world could understand. But the idea that there was more waiting for him, more power to claim, thrilled him.

Without hesitation, Aldric activated the system, and the world around him began to shift. Shadows swirled at his feet, rising like thick mist as they transported him into the dungeon. The cold, dark air seemed to press against his skin, filling him with the ominous energy of the void.

He stood at the entrance of the Dungeon of Ashborn—a massive, fortress-like structure carved from black stone, shrouded in eternal twilight. The sky above was an endless expanse of darkness, with no stars to guide the way. The dungeon stretched deep into the ground, and the air crackled with the raw power of shadows.

As Aldric stepped forward, the great stone doors of the dungeon creaked open, revealing the first of many trials that awaited him.

---

The First Trial: The Shadows of the Past

Inside the dungeon, the air felt thick with the weight of memories. Aldric could feel the presence of countless souls, the shadows of those who had fallen in battle long ago. The walls were lined with the flickering shapes of ghostly figures, warriors who had served Ashborn in his reign as Shadow Monarch.

Suddenly, the shadows began to coalesce, taking form in front of him. These were no ordinary enemies—they were the Shadows of the Past, warriors who had fought alongside Ashborn and wielded the powers of the shadows with mastery. Each one bore weapons forged in darkness, their eyes glowing red with malice.

The first of the shadow warriors lunged at Aldric, moving with impossible speed. But Aldric was faster. Using the Speed Force, he dodged the strike effortlessly, his body moving in a blur. With a single, decisive motion, he drew his swords, each one enhanced by his Armament Haki, and cut through the warrior before it could even react.

Yet, as soon as the shadow fell, two more appeared in its place.

Aldric knew this battle would not be won easily. These were not simple enemies to be cut down—they were manifestations of Ashborn's legacy, soldiers bound to the dungeon's will. But Aldric had prepared for this. He summoned his shadow clones, each one an exact replica of himself, and sent them into the fray.

The battle quickly turned chaotic. Aldric's clones fought with precision, engaging the shadow warriors in combat while Aldric himself unleashed powerful spells and techniques. Using the Op Op No Mi, he created a Room, allowing him to control the battlefield, manipulating the position of his enemies and cutting them down with ease. His Observation Haki kept him one step ahead of every attack, predicting their movements before they even struck.

The shadows fell, one after another, but for every shadow he destroyed, more seemed to rise from the walls, their dark forms relentless in their assault.

"This is endless," Aldric muttered, realizing the true nature of the trial.

But Aldric had faced worse. Channeling his Conqueror's Haki, he released a wave of his indomitable will. The sheer force of his willpower washed over the shadows, and many of them faltered, their forms disintegrating into the darkness.

Finally, the last of the shadow warriors crumbled into dust, and the room fell silent once more.

"The first trial is complete," Raphael's voice echoed in his mind, providing its usual calm analysis.

Aldric sheathed his swords and continued deeper into the dungeon, knowing that the trials would only grow more difficult from here.

---

The Second Trial: The Abyssal Beasts

The second chamber of the dungeon was unlike the first. As Aldric entered, he was met with a vast, open arena filled with the roars of monstrous creatures. These were the Abyssal Beasts, ancient entities born from the deepest shadows. Their forms were massive and grotesque, with sharp, twisted limbs and eyes that glowed like molten lava.

The beasts were primal, mindless in their rage, but their power was undeniable. Each one seemed to radiate raw, chaotic energy—energy that threatened to consume anyone who dared stand in their way.

Aldric summoned his shadow army, the soldiers he had extracted from battles past. His army formed ranks behind him, their weapons drawn, ready to face the beasts. With a nod, Aldric sent his soldiers into the fray, and the clash of battle erupted.

The Abyssal Beasts charged, their massive bodies crashing into Aldric's forces with terrifying force. They swung their enormous claws, tearing through shadows with ease. Aldric knew that brute strength alone wouldn't be enough to defeat these creatures.

He had to outthink them.

Using the Gomu Gomu No Mi, Aldric stretched his body, bouncing between the massive beasts with incredible speed. His rubberized limbs allowed him to withstand their powerful blows, and he retaliated with devastating punches, each one infused with Haki. His strikes landed with explosive force, sending shockwaves through the arena.

But the Abyssal Beasts were relentless. As Aldric engaged them, they adapted, their movements becoming faster and more unpredictable. Aldric found himself dodging swipes and blasts of dark energy as the beasts closed in on him from all sides.

Aldric activated his Invisibility, disappearing from their sight, and used the Op Op No Mi to manipulate the battlefield. He created a new Room, expanding it to encompass the entire arena. Within this space, Aldric had total control over matter and energy. With a flick of his wrist, he swapped positions with one of the Abyssal Beasts, causing the creature to collide with its own kin.

The beasts roared in fury, confused by the sudden shift in their surroundings.

Taking advantage of their disorientation, Aldric summoned his most powerful shadow warriors—figures like Igris, who now fought by his side as a loyal servant. Together, Aldric and his shadows unleashed a devastating barrage of attacks, cutting through the Abyssal Beasts with precise strikes.

The battle raged for what felt like hours, the beasts refusing to yield. But Aldric's patience and strategic prowess paid off. One by one, the creatures fell, their massive forms disintegrating into the shadows from which they had come.

Finally, the last Abyssal Beast let out a final roar before collapsing into a pile of ash.

Aldric stood victorious once again, though he knew the dungeon still had more trials in store for him.

---

The Third Trial: Confronting the First Shadow Monarch

The final chamber was unlike any other. It was a throne room, vast and empty, save for the lone figure that sat upon the throne—a figure cloaked in darkness, his eyes burning with the fire of eternity.

This was Ashborn, the First Shadow Monarch.

Aldric felt a cold shiver run down his spine. He had known that Ashborn's power still lingered within this dungeon, but seeing the legendary monarch in person was something else entirely.

"You have come far, Aldric," Ashborn's voice echoed through the chamber, deep and resonant. "But to claim my power, you must prove yourself worthy."

Aldric nodded, knowing that this final battle would be the ultimate test of his strength, his will, and his mastery over the shadows.

Ashborn rose from his throne, his form shifting and expanding as the shadows around him coiled like serpents. His presence was overwhelming, the very air around him crackling with dark energy.

Without warning, Ashborn attacked. His sword, forged from the purest darkness, cleaved through the air with terrifying speed. Aldric barely had time to react, dodging the strike by a hair's breadth. He could feel the raw power radiating from Ashborn—this was no ordinary foe.

But Aldric was no ordinary warrior.

Drawing his swords, Aldric charged at Ashborn, their blades clashing in a shower of sparks. The force of the impact sent shockwaves through the chamber, but Aldric held his ground. He pushed Ashborn back with a flurry of precise strikes, each one infused with his Armament Haki.

{Author's Note will be written like this: { }

{I know that I haven't uploaded as much it was because I didn't have enough time to upload the chapters for which I am truly sorry. But don't worry for I am here and I will try to upload as much as possible and also please give me some ideas on my story and the main reason for not uploading is also because I couldn't think of anything good for the story. So once again sorry and I will try to upload as much as possible amd also sorry for the cliffhanger.}

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