When a God of Destruction Was Reincarnated in Tensura:

Rimuru knew that the revival of Charybdis, the mindless calamity-class monster, posed a significant threat not only to Tempest but to the surrounding regions. Based on the intelligence gathered from his spies, he learned that Clayman and the Moderate Harlequin Alliance planned to unleash Charybdis to weaken Tempest before their full-scale attack. Rimuru immediately began formulating a counterattack plan to neutralize Charybdis while using the situation to his advantage.

Raphael's Analysis

Rimuru tasked Raphael with analyzing all available data on Charybdis.

Raphael informed him that Charybdis was an ancient being of destructive power born from Veldora Magicules.

Its primary abilities included:

Magicule Devourer: Charybdis could absorb magicules from its surroundings, making traditional magic less effective.

Gravity Magic: It used devastating gravitational attacks to crush its enemies.

Flight: Its aerial capabilities made it hard to attack directly.

Mega Scale Summoning: Charybdis could summon Megalodons, massive flying shark-like creatures, to aid it in battle.

Raphael identified that while Charybdis was immensely powerful, its mindless nature made it predictable. Additionally, the control core for Charybdis was located deep within its body, guarded by a dense magic barrier. Destroying this core would cause Charybdis to disintegrate.

Raphael also noted that Charybdis was particularly vulnerable to attacks involving soul-targeting abilities or high-impact physical attacks.

Defensive Measures for Tempest

Reinforce Tempest's defensive barriers to ensure no damage would reach the city even if Charybdis managed to breach the perimeter.

Shion and Rigurd were tasked with leading the ground troops to intercept any Megalodons that might attack Tempest.

Rimuru will develop a specialized magicule disruptors, spell that would reduce the efficiency of Charybdis' gravity magic within a set radius.

Assembling the Strike Team

Rimuru decided that a small, elite team would engage Charybdis to avoid unnecessary casualties. The team consisted of:

Diablo:

His overwhelming magical prowess and soul-based attacks were perfect for dealing damage to Charybdis' core.

Ranga: His speed and shadow manipulation would allow him to flank and distract Charybdis while the others attacked.

Gabiru and his dragon army: Their aerial mobility would counter Charybdis' flight advantage.

Rimuru: As the leader, Rimuru would deliver the final blow using his ultimate skills.

Trap Setting

Rimuru decided it is best to lure Charybdis to a location far from Tempest, specifically a wide, open valley surrounded by mountains.

Using illusion magic, Rimuru will create, it will be a decoy army made of magicules to attract Charybdis. The bait will also include concentrated magicule crystals to ensure Charybdis couldn't resist.

The valley will be rigged with traps, including:

Anti-Magic Barriers: To disrupt Charybdis' magicule absorption.

Explosive Traps: These would detonate on impact to weaken Charybdis' outer body.

Binding Chains: Special chains crafted by Kurobe and Kijin using magisteel to immobilize Charybdis temporarily.

After sharing his counterattack plan with his generals, Rimuru watched their reactions with a sense of pride.

Benimaru, ever the composed yet fiery tactician, nodded with approval, while Shion, overflowing with enthusiasm, declared,

"Let's crush those who dare oppose Rimuru-sama!" Soei, calm and calculating, disappeared into the shadows almost immediately to begin his reconnaissance.

Diablo, with a gleam of excitement in his eyes, pledged to ensure the plan would be executed flawlessly, and Hakurou offered a respectful bow, vowing to train the soldiers to perfection.

Even Gabiru, though somewhat nervous, promised that his dragon riders would be ready to act as a formidable air force.

The energy in the room was palpable, with everyone eager to fulfill their roles. Tempest had been threatened before, but this time, they were taking the fight to their enemies, and morale was higher than ever.

Rimuru Returns to the Kids

Once the meeting concluded, Rimuru left his generals to begin implementing their respective parts of the plan.

He made his way back to where the kids were training. The sight that greeted him brought a smile to his face: the children were practicing the techniques he had taught them, their determination shining brightly.

Observing the Students' Progress

Kenya was practicing his fire magic, creating controlled bursts of flame that danced like flickering lanterns. Rimuru noticed his technique had improved considerably.

Chloe, serene and focused, was honing her water magic. Her control over the element was so precise that she was crafting intricate patterns in midair.

Alice was using her puppetry magic, commanding her toy soldiers to engage in mock battles. Her control was so refined that her toys moved like an elite squadron.

Gale was firing rapid bursts of aura bullets, aiming them at floating targets Rimuru had conjured for him earlier. His accuracy was steadily increasing.

Ryota was testing his body enhancement skills, moving with blinding speed as he sparred against shadow clones Rimuru had created.

Rimuru clapped his hands together to get their attention. "You've all been working so hard! I'm impressed by how far you've come." The children paused and ran toward him, eager to show off their progress.

Kenya spoke first, puffing out his chest. "Rimuru-sensei, did you see that? My flames are so much stronger now!"

Rimuru chuckled. "I saw, Kenya. You're doing great, but remember to control your output. Power is important, but precision is key in a real battle."

Chloe tilted her head curiously. "Sensei, you've been really busy lately. Are you worried about something?"

Rimuru smiled softly but decided not to burden the kids with the details of the looming threats. "Not at all, Chloe. I'm just preparing for something important. Don't worry; everything is under control."

Alice grinned mischievously. "I bet you're planning something super cool, like a surprise party or a secret mission!"

Rimuru laughed. "You could say that. But for now, your mission is to keep training and getting stronger. You're all doing amazing."

Ryota, usually quiet, spoke up. "Sensei, when will we get to visit Tempest? You promised."

"I haven't forgotten," Rimuru replied. "Soon, I'll take you there. I think you'll love it—it's a beautiful place, and the food is amazing."

While Rimuru was encouraging the kids, Raphael was silently working in the background, constructing powerful new spells and enchantments to be used in the counterattack plan.

Using the immense knowledge stored within, Raphael crafted spells designed specifically to counter the abilities of the Moderate Harlequin Alliance, Carrion, Frey, and Charybdis.

Spell Development Details

Soul-Severing Chains:

A spell designed to incapacitate enemies like Kigali and Clayman, who rely on controlling others. The chains would sever their connection to any external entities or puppets.

Gravity Nullification Field:

A countermeasure against Charybdis, this field would neutralize its gravitational attacks within a certain radius, allowing Rimuru and his allies to fight without being crushed.

Illusion Ward:

A powerful barrier designed to expose false identities or illusions, perfect for dealing with deceptive enemies like Tear and Footman.

Firestorm Lance:

A high-powered spell meant for dealing with Carrion and Frey's combined forces. The lance would pierce through magical defenses and unleash a massive firestorm upon impact.

Information Synchronization:

Raphael linked the spy fragments Rimuru left on Yukki and Kigali to a direct notification system. Any new conversations or plans would be transmitted to Rimuru in real-time.

As the kids continued training, Rimuru communicated with Raphael through thought.

Rimuru: "Raphael, how's the spell development coming along?"

Raphael: "Progress is excellent, Master. All necessary spells for the counterattack are near completion. Additional contingency measures are also being prepared."

Rimuru: "Good. And what about the fragments I left in Yukki's office and on Kigali?"

Raphael: "No suspicious movements have been detected yet. However, Kigali and Clayman are likely accelerating their plans. The revival of Charybdis is proceeding as expected."

Rimuru: "We'll be ready for them. Let me know if anything changes."