The Greatest Assassin Gets Reincarnated in Tensura

The years passed, and the world changed.

Shizu had finally mastered her sword skills, her blade moving with a grace and power that few could match. She had become a force to be reckoned with, an inspiration to those who wielded a sword. But fate had plans for her beyond mastery—one day, Hinata Sakaguchi appeared.

Hinata was young, brash, but incredibly talented. She had a sharp mind and an even sharper blade. Shizu saw herself in the girl, and despite Hinata's sometimes overconfident nature, she decided to train her.

One morning, in a clearing deep within the forest, their swords clashed at blinding speed.

Shizu smirked. "You're fast, but you leave your left side open."

Hinata, sweating, quickly corrected her stance. "Tch. You won't catch me with that again."

Shizu vanished—reappearing behind Hinata in an instant.

"Won't I?"

A blade stopped an inch from Hinata's neck. Hinata froze.

"…Damn it."

Shizu laughed, stepping back. "You've got the talent, Hinata. But talent alone won't save you."

Hinata exhaled, gripping her sword tighter. She wouldn't lose again.

Years passed, and Hinata became one of the strongest swordswomen in the world. She would eventually find her place as the leader of Luminous Valentine's knights.

While Shizu trained heroes, Guy Crimson had different plans.

He was growing bored of ruling alone. So he decided to expand the ranks of the Demon Lords.

Luminous Valentine, Draguel, and eventually… Leon Cromwell.

Leon Cromwell had always been powerful. But becoming a True Hero? That was something else entirely.

His moment came in battle.

A village was under siege by a rampaging calamity-class beast, a creature of destruction born from the chaos of magic gone wrong. Lightning crackled in the sky as Leon faced it alone.

The beast roared, lunging at him with enough force to shatter mountains. But Leon stood firm, sword glowing with golden light.

BOOM!

The moment their clash erupted, the sky split apart with an explosion of electricity.

Leon gritted his teeth. "You're strong. But I'm stronger."

With a single slash, he cut through the beast like lightning tearing through the night.

A golden aura surrounded him as his power ascended to a new realm.

The world acknowledged him.

The voice of the world echoed:

[Leon Cromwell has awakened as a True Hero: Lightning Hero.]

He stood there, victorious, bathed in golden light. But his journey wasn't over.

Not long after, Leon encountered Kazalim, an arrogant and cruel Demon Lord who ruled through fear.

Kazalim sneered. "You? A mere human? You think you can challenge me?"

Leon didn't even flinch. "I'm not a mere human anymore."

The fight was explosive.

Kazalim hurled waves of dark energy, each one capable of leveling a city.

Leon dodged effortlessly, his speed now beyond mortal comprehension.

Then, in an instant, he was behind Kazalim.

Lightning surged through his blade.

"You're done."

A single thunderous slash—and Kazalim was no more.

The world acknowledged his feat: Leon Cromwell, now a Demon Lord.

Guy Crimson, hearing of this, recruited Leon into the Demon Lords' ranks.

Leon, ever the lone wolf, hesitated.

Guy smirked. "Come on, Leon. We need someone with actual class in our ranks."

Leon sighed. "Fine. Just don't expect me to join your tea parties."

Dino had waited centuries for Veldanava's revival. But nothing happened.

His patience snapped.

In a moment of rage, Dino eradicated an entire town.

He stared at the ruins, breathing heavily, power surging through him. He had evolved. But as he looked at the destruction, he felt nothing.

Then, he heard footsteps.

Diablo. Testarossa. Carrera. Ultima.

The four Primordials, sent by Arion himself.

Diablo grinned, golden eyes glowing. "Dino, Dino, Dino… what have you done?"

Ultima giggled. "Ooooh, you're in trouble~."

Carrera cracked her knuckles. "We have been told not to kill you, but no one said we couldn't break you."

Dino barely had time to react.

Testarossa moved first—a blur of speed.

SMASH!

Dino was sent flying through five mountains.

As he tried to stand, Diablo appeared behind him, whispering: "That was just the warm-up."

For the next hour, Dino was subjected to the most humiliating beating in history.** He was punched, kicked, blasted, thrown into the sky, slammed into the ground, electrocuted, melted, frozen—**

By the end, he lay in a crater, twitching.

Carrera crouched next to him, patting his cheek. "Still alive? Good. Lesson learned?"

Dino groaned. "I… hate you guys…"

Ultima beamed. "Aww, we love you too~."

They left him there, his pride in shambles.

Eventually, after recovering, Dino was forced to join the Demon Lords.

With new heroes, new Demon Lords, and hidden forces working in the shadows, the world was moving toward an uncertain future.

And in the City of Eternal Night, Arion watched it all, smiling.

"Everything is going exactly as I planned."

---'____----

In the City of Eternal Night, where the world's shadows converged, Arion sat upon his throne of twilight, a glass of deep crimson wine in his hand. The room was dimly lit, illuminated only by the faint glow of magical artifacts lining the walls.

A shadow flickered before him, kneeling—a spy from his vast network.

"My Lord, we have received intelligence on a rather... promising individual."

Arion took a slow sip of his wine, his piercing silver eyes gleaming with curiosity. "Go on."

The spy continued. "A young man named Yuuki Kagurazaka. He possesses intelligence far beyond his years, a natural charisma that draws others to his cause. He is strong—dangerously so. But more importantly... he is a dreamer."

Arion raised an eyebrow. "A dreamer?"

"Yes, my Lord. His ideals are naive yet strangely infectious. He believes in changing the world, in making it a better place for all. His unwavering drive, combined with his genius-level capabilities, has made people believe that he can turn those ideals into reality."

Arion leaned forward, resting his chin on his hand. "Confidence… ambition… the ability to inspire others. He shines like a star, then?"

The spy nodded. "Exactly, my Lord. If he leads, people will follow."

Arion tapped his finger against the armrest of his throne. A man like that could be incredibly useful.

"What else?" he asked, his voice calm but commanding.

The spy hesitated for a moment before continuing. "He has already begun building influence—

He is well-connected in both the Western Nations and the Eastern Empire. If left unchecked, his power and influence could rival even that of established rulers."

Arion smirked. "Interesting. So, he could be the perfect puppet to control both the East and the West through our guild?"

The spy, however, took a deep breath before delivering the next part of his report. "There is... one problem, my Lord."

Arion's eyes narrowed. "Speak."

"Yuuki possesses an Anti-Skill ability. Any attempt to control him through magic, skills, or curses would be rendered useless."

The room fell silent.

For a long moment, Arion said nothing. He simply stared into his glass, swirling the wine slowly. Then, a soft chuckle escaped his lips—low, amused, almost sinister.

"An Anti-Skill ability, you say?" He took another sip of his wine, then set the glass down. "That just makes this more entertaining."

Arion leaned back, his silver hair catching the dim light as he smirked.

"I will take care of it myself."