The Greatest Assassin Gets Reincarnated in Tensura

Days passed, and Tempest remained lively as always. However, an ominous presence soon loomed over the Jura Forest.

Rimuru received troubling news—Charybdis had been revived and was heading straight for Tempest.

The legendary calamity-class monster, known for its devastating strength and overwhelming defenses, was now a direct threat. Rimuru and his generals immediately mobilized.

As for me and my lovers, we had no reason to intervene.

This was Tempest's battle.

That didn't mean we wouldn't watch, though.

We teleported unnoticed, as always, and positioned ourselves high above the battlefield, concealed from sight and senses. Even Milim, with all her raw power, couldn't detect us.

Speaking of Milim, she was once again pestering Rimuru.

"Hey, hey, Rimuru! Let me fight! Let me fight!"

Rimuru let out an exhausted sigh. "Milim, I told you already! This is our battle. Tempest will handle it."

"But it'll be fun! And it'll be over in an instant if I do it!" Milim whined, stomping her foot.

"Exactly. That's the problem," Rimuru grumbled. "There's no point in fighting if we don't even get the chance to try."

Milim pouted but eventually crossed her arms. "Fine. But don't come crying to me when you need my help."

Just as they were talking, a monstrous pressure filled the air.

A terrifying aura rolled over the land like a storm, shaking the trees and stirring the clouds.

Charybdis had arrived.

A massive, shark-like dragon over 50 meters long descended from the sky. Its single ominous eye gleamed with pure, destructive intent. Thick dragon scales, harder than steel, covered its entire form. Huge wings, jagged horns, and a powerful tail added to its monstrous appearance.

Its dorsal fin cut through the air like a blade, giving it a strange fish-like yet draconic aura.

It was a beast of pure destruction.

Accompanying Charybdis were its Megalodons—vicious, monstrous creatures with an instinctual resistance to magic.

Mana Jam.

A unique skill that greatly reduced the effectiveness of magical attacks, making direct spells useless.

Gravity Manipulation. Ultra-Speed Regeneration. Physical Attack Resistance.

It was clear that this was no ordinary battle.

Rimuru's generals—Benimaru, Shion, Souei, Hakuro, and Ranga—immediately moved in.

Their strategy was simple—eliminate the Megalodons first.

Benimaru summoned scorching infernos, slicing through multiple Megalodons with his flaming katana.

Shion tore through them with raw strength, her devastating blows shaking the battlefield.

Souei was a shadow—his razor-sharp wires dancing in the air, cutting through the creatures before they could react.

Hakuro moved with precision, each sword strike flawless, eliminating threats with pure technique.

Ranga became a storm incarnate, his Tempest Howl ripping through enemies.

Within minutes, the Megalodons were wiped out.

However, Charybdis itself was another matter.

It moved with terrifying speed for its size, using its scales as projectiles, raining destruction upon the battlefield.

The generals dodged and countered, but every time they managed to damage the monster, its Ultra-Speed Regeneration would kick in, restoring it in moments.

Rimuru finally decided to step in.

Rimuru analyzed the situation and made his move. He began absorbing Charybdis' scales, breaking down the material into energy.

For a moment, it seemed like he found a solution—until the scales regenerated again.

"Tch… this thing is annoying." Rimuru muttered.

After exchanging several powerful attacks, Rimuru finally noticed something strange.

From within Charybdis' core, a human voice was screaming.

"MILIMMMMMM!! I WILL KILL MILIMMMM!!"

Rimuru's eyes widened.

"Wait… Is that… Phobio?"

The realization hit instantly.

Charybdis wasn't just here for destruction—it was specifically after Milim.

While the intense battle had been raging, Milim had been peacefully napping under a tree.

Rimuru, shaking his head, walked over to her and nudged her awake.

"Milim. Wake up."

Milim grumbled, pretending she hadn't been asleep. "I wasn't sleeping! I was… conserving energy."

Rimuru sighed. "Whatever. Listen, Charybdis is here for you."

Milim blinked. "Huh? For me?"

"Yeah. And inside of it… is Phobio."

Milim sat up, her expression blank for a moment. Then, she grinned.

"So I can fight it now, right?"

Rimuru rolled his eyes. "Just don't destroy the core. We need to get Phobio out."

Milim pumped her fists. "Got it!"

Standing up, Milim cracked her knuckles and took a deep breath.

In an instant, her aura erupted—a force so overwhelming that even Charybdis seemed to pause.

Everyone in Tempest stopped to watch.

Milim raised a single hand.

A faint glow gathered in her palm.

Then, in a blink, she unleashed a single Dragon Nova.

A devastating, blinding beam of pure destructive energy shot forward, piercing straight through Charybdis.

BOOM!

The sky shook.

A powerful shockwave blasted through the battlefield, and in an instant—Charybdis was obliterated.

Its body was completely shattered into glowing embers.

And from the remains, Phobio's unconscious body fell through the sky.

Rimuru moved instantly, catching Phobio before he could hit the ground.

Milim landed beside him, hands on her hips.

"See? Easy!" she said proudly.

Rimuru let out a sigh of exhaustion. "Yeah, yeah… Thanks, Milim."

From our hidden vantage point, I chuckled.

Velzard smirked. "Well, that was overkill."

Testarossa folded her arms. "As expected of the so-called 'Destroyer.'"

Ultima grinned. "That was fun to watch!"

Carrera scoffed. "Hmph. It was too easy for her."

I simply smirked. "Entertaining, nonetheless."

With that, we turned away and vanished into the shadows, leaving Rimuru and his people to handle the aftermath.

After the dust had settled, Tempest stood victorious. The remains of Charybdis and its Megalodons lay scattered across the battlefield. The battle was over, but the story wasn't finished just yet.

As the sun began to set, Carrion himself arrived in Tempest.

The Beast King of Eurazania, a towering figure of pride and power, strode forward with an air of authority. His golden mane swayed as he walked, his sharp lion-like eyes scanning the battlefield before settling on Phobio's unconscious form in Rimuru's arms.

Carrion let out a deep sigh. "I see he caused you a lot of trouble."

Rimuru gave a tired chuckle. "Yeah… But at least we got him out before Milim completely vaporized him."

Milim, standing nearby, huffed. "I could have done it gently if I wanted to!"

Carrion raised an eyebrow but decided not to argue. Instead, he stepped forward and knelt beside Phobio, placing a hand on his subordinate's back.

With a quiet growl, he spoke, "I will take him back with me."****"He will answer for his foolishness."

Rimuru nodded. "That's probably for the best."

Then, Carrion looked Rimuru straight in the eye.

"I also want to make one thing clear."****"From this day forward, Eurazania will never raise a blade against Tempest."

There was a moment of silence. Then, Carrion continued.

"Instead, let's form an alliance."

His tone was firm, but sincere. "We'll establish diplomatic relations between our nations. I see now that you and your people are worth working with."

A slow smile crept onto Rimuru's face. "Heh… I like the sound of that."

The two leaders shook hands, cementing a new bond between their nations.

Carrion then picked up Phobio, carrying him over his shoulder with ease. "I'll make sure he learns from this."****"Until next time, Rimuru."

With that, Carrion departed, taking Phobio back to Eurazania.

With the battle behind them and an alliance formed, Tempest shifted from battlefield mode to celebration mode.

The Megalodons, once monstrous foes, were now about to become the main course.

Hakuro, the master swordsman, took center stage. With his katana gleaming under the lantern lights, he stood before the massive remains of the giant sharks.

"Now, allow me to demonstrate."

A hush fell over the crowd as Hakuro took his stance.

Then—he moved.

SWISH!

In the blink of an eye, his blade flashed.

For a moment, no one could even see what had happened.

Then—the entire Megalodon carcass was suddenly divided into perfectly portioned slices.

A stunned silence followed. Then, in an instant—

"OOOOOOHHH!!"

The entire crowd erupted in applause.

Even Rimuru clapped, impressed. "Damn, Hakuro… That was clean."

Shion pouted. "Hmph. I could've done it faster."

Benimaru chuckled. "Faster, maybe. But not as precise."

With the meat perfectly prepared, the cooking began.

Geld and his chefs took charge, their massive grills fired up, flames crackling as they seasoned, grilled, and roasted the Megalodon meat. The rich, savory aroma filled the air, making mouths water.

The feast officially began.

Tempest was alive with music, laughter, and celebration.

The streets glowed with lanterns, illuminating the dancing and drinking.

Shion challenged Benimaru to a drinking contest.

Souei, ever the silent warrior, enjoyed his meal in peace while Ranga curled up beside him.

Milim? Well, Milim was devouring plates at an inhuman speed.

"THIS IS SO GOOD! MORE! MORE!" she shouted, stuffing her face.

Rimuru, shaking his head, just let her be. "At least let the others eat, Milim…"

Tempest was alive with joy.

Away from the main festival, I sat on a grassy hill overlooking Tempest, my lovers seated around me.

A small fire crackled, providing warmth against the cool night breeze.

From our vantage point, we could see everything.

Velzard, her white hair glistening under the moonlight, took a sip of her drink, eyes glowing with quiet amusement. "They really know how to celebrate, don't they?"

Testarossa leaned back, smirking. "They fought hard, so it makes sense."

Ultima was grinning, excited as always. "Honestly, I kinda wanna join them!"

Carrera, however, scoffed. "Feasts are nice and all, but I would've handled Charybdis myself just for the fun of it."

I chuckled, watching the dancing flames. "Let them have their moment. This is their victory."

The sounds of laughter and music echoed from below, mixing with the crackling of our own fire.

The night stretched on, peaceful and serene.

Even for us, beings of immense power, there was something comforting about this moment—watching from the shadows, unseen, yet present.

And so, the night continued, with Tempest celebrating a victory well-earned.