The Greatest Assassin Gets Reincarnated in Tensura

As Velzard walked through the City of Eternal Nights beside Arion, she couldn't help but be impressed by its grandeur. It was a blend of modern innovation and ancient power, a city that seemed to shift and evolve as they moved through it. The streets were lively, filled with strong demons, bustling restaurants, and even amusement centers.

Despite all of that, Velzard's mind was still occupied with thoughts of Arion. Who exactly was he? His presence was undeniable, his strength immeasurable, and the way he carried himself with absolute confidence was something she had rarely seen before.

Just as she was getting lost in thought—

"HAHA… HAHA… HAHAHAHAHA!!!"

That infamous laugh boomed through the air, cutting through the noise of the city like a blade.

Velzard froze mid-step. Her eye twitched. That laugh. That absolutely ridiculous laugh.

She turned her head sharply and saw Veldora, sitting casually outside a small book café, a massive novel in one hand, a steaming drink in the other. He looked oddly refined, almost scholarly, but the moment he laid eyes on her, his smirk widened.

And then, in a voice way too loud for comfort, he pointed at her and declared:

"Oh, sister! I see that you have finally fallen for Arion's charms!"

Velzard's brain short-circuited.

"W-WHAT?!" she snapped, her face instantly flushing red.

Arion, beside her, simply chuckled, clearly enjoying this.

Veldora, grinning like a fool, leaned back in his chair. "Oh? Then why is your face so red, hmm?"

Velzard turned away, crossing her arms in a weak attempt to cover her embarrassment. "It's—it's just the heat from the city, that's all!"

Arion, ever the observer, gave her a knowing smirk. "Interesting excuse."

Velzard shot him a quick glare before turning back to Veldora. "Forget about that! What are you even doing here?"

Veldora grinned and placed a hand on his chest dramatically. "I, the Great Storm Dragon, have decided to keep my dear friend Arion company!" He paused for effect, then added even more grandly, "And bestow upon him my vast knowledge and wisdom! HAHAHAHAHAHA!"

Arion sighed deeply, rubbing his temple. "Right… your wisdom."

Velzard rolled her eyes. "You? Wisdom?"

Veldora crossed his arms, looking offended. "Sister, I'll have you know that I have grown greatly under Arion's guidance! I am no longer the impulsive 'idiot' you once knew!"

Velzard scoffed but then paused as she remembered.

She had fought Veldora before. And lost.

It was supposed to be a casual education, a way to punish Veldora. But it wasn't even close.

Veldora had overwhelmed her. His movements, once reckless, were precise. His attacks, once wild and chaotic, were methodical, controlled, and devastatingly effective.

She had underestimated him.

She had lost.

And worst of all, she had to hear that damn laugh after it was over.

Velzard scowled at the memory. "Hmph. So you've actually improved."

Veldora grinned even wider. "More than you can imagine! I have trained under the greatest—"

Arion cleared his throat loudly.

Veldora paused, then sighed dramatically. "Fine, fine. Arion has taught me a few things."

Arion gave him a side glance. "A few?"

Veldora coughed. "Ahem… alright, many things."

Velzard still couldn't believe it. Her little brother was now stronger than her.

She clicked her tongue. "I'll admit… you're not as much of an idiot as before."

Veldora gasped dramatically, placing a hand over his heart. "Such high praise! I think I might cry!"

Arion sighed again. "If you cry, I'm leaving."

Veldora immediately straightened. "Ahem. As I was saying—yes, I have changed!"

Velzard still couldn't believe it. Her idiot brother, stronger than her. It was infuriating. But… she also felt something else.

Pride.

She would never say it out loud, but deep down, she was proud of how much he had grown.

She smirked. "You're still an idiot."

Veldora laughed loudly. "Maybe, but I'm an idiot who won!"

Velzard clenched her fists. "You want a rematch?"

Arion chuckled. "Perhaps not here. I'd rather my city not be destroyed just yet."

Veldora patted Arion on the shoulder. "Ah, don't worry! If we fight, we'll take it somewhere safe. Maybe the heavens."

Velzard raised an eyebrow. "The heavens?"

Veldora grinned mischievously. "You know, where we'll go after I beat you again."

Velzard's eye twitched violently. "You—"

Arion, amused but also aware that things were about to get destructive, stepped between them. "Enough. If you two start fighting here, I'll make you both spar in an isolated void for eternity."

Both dragons froze.

Velzard sighed, crossing her arms again. "Hmph. Fine."

Veldora, still grinning, sat back down and picked up his book. "Well, sister, whenever you're ready to lose again, you know where to find me."

Velzard shot him one last glare before turning to Arion. "Let's keep moving. Before I turn him into an ice statue."

Arion chuckled, nodding. "As you wish."

As they walked away, Veldora's laughter echoed behind them, filled with amusement and just a little bit of brotherly mischief.

____----____

The golden-lit war chamber of the Eastern Empire was filled with the scent of incense and the quiet hum of strategy in motion. Emperor Rudra sat at the head of a long, polished table, his fingers tapping a slow rhythm against its surface.

His most trusted generals stood around him, along with Velgrynd, the Scorching Dragon, who stood beside him with her arms crossed.

"The world is evolving too fast," Velgrynd said bluntly, eyes sharp. "If we let them continue at this pace, it won't be long before someone surpasses the Empire."

Rudra leaned back, smirking. "And here I thought competition was a good thing."

Velgrynd rolled her eyes. "Not when it threatens your rule, Rudra. We need to control the growth of these nations."

One of the generals cleared his throat. "We could sabotage their industries, infiltrate their leadership, slow them down from within—"

Velgrynd cut him off. "Too slow. By the time that works, someone will have already tipped the balance."

Rudra tilted his head. "And what do you suggest?"

She smirked. "A great war. A divine reset. Summon the angels, let them strike down the nations that advance too quickly. We make it a cycle—every 500 years, the world will be reminded of who truly controls it."

Silence filled the chamber as her words settled.

Then, Rudra chuckled, rubbing his chin. "The Great Tenma War, huh? Sounds poetic." He looked around the room. "Make the arrangements. Spread rumors, let the nations prepare, but not enough to stop it. Then… we release the flood."

A few moments later.....

With a snap of his fingers, magic circles flared to life in the sky.

Across the Cardinal World, portals ripped open—and the Angelic Legions descended.

Far from the chaos, Arion sat in a high-rise overlooking the ever-evolving skyline of the City of Eternal Nights.

Across from him, Velzard sipped a glass of wine, still getting used to the surreal energy of the city. She had expected some dark, brooding fortress—not a place bursting with life, amusement parks, high-end restaurants, and towering skyscrapers.

"Your city changes constantly," Velzard noted.

Arion smirked. "Boredom is my worst enemy."

Before she could reply, a shadow flickered into the room. One of Arion's spies, cloaked in darkness, dropped to one knee.

"My Lord—urgent news. The Eastern Empire has declared war. Rudra has summoned Legions of Angels to destroy the growing cities. He calls it the Great Tenma War. The sky has opened, and an army of Angels is attacking nations across the world."

Velzard's grip on her wine glass tightened.

Arion didn't speak at first. He slowly set his drink down, rolling his shoulders as if shaking off irritation. Then, with a calm but deadly edge to his voice, he asked:

"How bad is it?"

The spy hesitated. "Capital cities are already falling. The angels aren't discriminating between soldiers and civilians."

Velzard stood up, her aura flaring. "That bastard Rudra! He always preached about order, but now he's burning down the world for control?"

Arion let out a slow breath, then cracked his neck. "Well. I was hoping to stay out of trouble for a while." He turned toward the open balcony. "Guess that was too much to ask for."

Then, his voice darkened.

"Diablo. Testarossa. Ultima. Carrera."

The air shifted, and in a blink, four powerful figures knelt before him.

Diablo, ever graceful and amused, tilted his head. "My Lord, how delightful to be summoned. Shall we assume war is upon us?"

Testarossa, looking like an elegant noblewoman with a taste for carnage, smirked. "Rudra has gone too far this time."

Ultima grinned, practically vibrating with excitement. "Shall I start with their capital? Or should I play with them first?"

Carrera just cracked her knuckles. "Finally. Something fun."

Arion crossed his arms. "Deploy the legions. Black, White, Yellow, and Purple. Defend the nations under attack. I don't care what it takes—drive the angels back."

Diablo placed a hand over his heart. "Consider it done."

With that, the four Primordials vanished, and moments later, the sky above the city ignited with swirling portals.

Velzard watched, impressed. "So, you're really going after Rudra now?"

Arion smirked. "Oh, I'm not just going after him." He turned to face her fully. "I'm ending this game. Permanently."