The Greatest Assassin Gets Reincarnated in Tensura

The battlefield was a frozen wasteland, sculpted by the sheer power of their clash. Jagged glaciers had risen unnaturally, towering like monuments to their overwhelming strength. The sky itself had fractured under the force of their blows, revealing a swirling abyss of frozen time and chaotic space beyond the Cardinal World.

Velzard exhaled sharply, steam rising from her lips as she glared at the man before her. "Tch." Her irritation was palpable. She had expected to overwhelm Guy quickly, to bury him under the might of her Absolute Zero, but no—he was keeping up. Worse, he was enjoying it.

Guy stood tall, his crimson aura crackling against the frozen storm around him. He wiped a bit of frost from his sleeve, grinning like a madman. "What's wrong, Velzard? Getting tired already? I thought True Dragons were supposed to be unstoppable."

Velzard's eye twitched. Smug bastard.

She shot forward in an instant, her fist coated in condensed frost, capable of freezing time itself. Guy barely dodged, the attack grazing his cheek and leaving behind a thin trail of ice. Instead of retaliating immediately, he laughed.

"Ooooh, that one almost got me! Maybe you are trying!"

Velzard gritted her teeth. She had fought countless battles, crushed enemies with the mere flick of her wrist, yet this infuriating man was not only matching her pace—he was toying with her.

Fine.

If he wanted a real fight, she would give him one.

With a deep breath, Velzard unleashed her full power. The air cracked and shattered as Absolute Zero expanded, devouring everything in its path. Even space itself struggled against the encroaching frost, distorting and warping under the sheer force of her presence.

Guy's grin faltered—just slightly. "Oh, now we're talking."

Flames of destruction erupted from his body, clashing against the endless frost. The two elements roared in defiance of one another, fighting for dominance. The world was the battlefield, and the Cardinal World itself trembled under their onslaught.

Mountains crumbled. Oceans froze over. The very fabric of existence began to tear.

Velzard's eyes narrowed. Damn it. At this rate, they wouldn't just settle their fight—they'd reduce the world to nothing.

Annoyed but resigned, she took a step back, raising her hand to make a simple gesture. A sharp slicing motion—stop.

Guy, mid-swing, actually hesitated. "…Huh?"

She huffed. "We're stopping."

He blinked, visibly disappointed. "Oh, come on! We were just getting to the fun part!"

Velzard crossed her arms. "If we keep going, there won't be a world left. Or do you want to explain to Veldanava why you accidentally erased an entire planet?"

Guy's smirk twitched, his flames slowly dying down. "…Okay, fair point." He rolled his shoulders, still looking like he wanted to throw one last punch.

Velzard sighed. "I see why my brother has taken a liking to you." She eyed him for a long moment before smirking slightly. "So, I've decided—I'll be staying in your castle from now on."

Guy's cocky grin returned. "Oh? Keeping an eye on me? Or do you just like my company?"

Velzard scoffed. "Don't flatter yourself. I need to make sure you don't go completely out of control."

Guy chuckled, rubbing his chin. "Having a True Dragon living in my castle, huh? Well, can't say I mind. If anything, it just makes things more interesting."

Velzard rolled her eyes. "Just don't try anything stupid."

"No promises."

And with that, their battle ended—not in destruction, but in an agreement. One that Guy knew would only make things far more entertaining in the long run.

----_----_----

In the grand halls of the Eternal City of Nights, three figures sat comfortably, watching the spectacle unfold through a massive floating crystal ball projection. The image displayed Guy Crimson and Velzard's clash in all its chaotic, world-threatening glory—ice and flames tearing the Cardinal World apart.

Seated on an extravagant couch, Veldora lounged with a smug grin, arms behind his head. Diablo, on the other hand, sat with refined elegance, sipping a luxurious cup of demon-grade tea. And then there was Testarossa, casually enjoying a glass of fine blood-red wine, her sharp crimson eyes glued to the battle with mild amusement.

The ground rumbled as the fight escalated, causing the crystal ball to flicker slightly.

Veldora let out a hearty laugh. "Hah! I knew it! I told you guys Guy wouldn't go down easily! Look at him go! He's actually making Velzard sweat!"

Diablo smirked, taking a slow sip of his tea. "Fascinating. Though, I must say, Lady Velzard looks... increasingly irritated."

Testarossa chuckled lightly. "Oh, she's absolutely seething. Look at her eye twitching. That's not just battle rage—she's genuinely annoyed."

The crystal ball flickered again, zooming in just in time to show Velzard unleashing her Absolute Zero, a sheer force of ice that nearly froze the very fabric of existence itself.

Veldora whistled. "Oof. Yeah, that's her 'I'm done playing' face. You see that? That's the look she gave me when I 'borrowed' her favorite ice throne back in the day. She does not mess around when she's mad."

Diablo raised an eyebrow, amused. "And what, pray tell, happened to that throne?"

Veldora coughed awkwardly. "Uh… let's just say, she didn't appreciate the modifications I made to it."

Testarossa smirked, tilting her head. "What kind of modifications?"

Veldora grinned, rubbing his nose proudly. "I turned it into a floating battle chariot!

Diablo sighed, shaking his head. "You truly have a talent for making powerful beings want to kill you."

Testarossa sipped her wine. "I assume she nearly froze you into an ice sculpture after that stunt?"

Veldora shivered dramatically. "Oh, you have no idea. I had to hide for a whole century.

But now, I'm stronger and after our last battle, I think she understands now, hahaha...hahahah...hahahah...

Meanwhile, back in the crystal ball, Guy unleashed a massive crimson firestorm, clashing against Velzard's Absolute Zero. The entire screen flickered violently, barely containing the sheer magnitude of the battle.

Diablo observed with mild intrigue. "Impressive as this is, they are going to destroy the Cardinal World at this rate."

Testarossa swirled her wine. "Should we step in?"

Veldora waved a dismissive hand. "Nah, they'll figure it out. Besides, this is fun to watch. Like the ultimate battle anime finale."

Just then, Velzard made a sudden hand gesture, signaling for the battle to stop.

Veldora blinked. "Wait… Did she just call a time-out?"

Diablo smirked. "It appears so."

Testarossa chuckled. "Smart move. If they continued, there wouldn't be a world left."

The projection then showed Velzard approaching Guy, and their conversation played out in real time.

When Velzard announced she would be moving into Guy's castle, Veldora suddenly choked on his drink.

"PFFFFFTTTT— SHE'S MOVING IN WITH HIM?!"

Diablo raised an eyebrow. "Now that is an interesting development."

Testarossa smirked. "I suppose she really does want to keep an eye on him."

Veldora, still coughing, slammed his fist on the armrest. "HAH! This is hilarious! Guy just got a roommate upgrade—and not just any roommate, a True Dragon!"

Diablo chuckled. "I do wonder how this will play out."

Testarossa sighed. "Well, one thing's for sure…" She glanced at the crystal ball with an amused smile. "Guy's life is about to get very interesting."

Veldora crossed his arms, smirking. "Oh man, I have to visit now. Just to see how this plays out."

Diablo chuckled. "Shall we place bets? How long before they argue over castle space?"

Testarossa smirked. "I give it one week before they start fighting over the throne room."

Veldora grinned. "Three days. Guy will say something smug, and Velzard will try to freeze his entire castle."

Diablo, ever the strategist, simply smirked. "I say… they adapt surprisingly well. Guy does have a way of charming even the most dangerous beings."

The three stared at the crystal ball as Velzard and Guy wrapped up their conversation, with Guy smirking at his new house guest.

Veldora stretched, grinning widely. "Welp! This was the best entertainment I've had in a long time."

Diablo chuckled, finishing his tea. "Indeed. I expect more fireworks soon."

Testarossa sipped her wine. "Oh, absolutely."

And with that, the three continued watching, eager to see what chaos would unfold next.