Immortal in Magic High

Tatsuya nodded, his expression thoughtful. "The core was close to overloading, but it never crossed the threshold. That's a good sign. We can reinforce the runes and enhance the cooling system to improve its durability."

"Let's switch to active cooling and Level-up the runes," I said, already starting to enhance the patterns.

"And I'll work on the other 'requirements' you mentioned," Tatsuya replied as we both dived back into our work.

Miyuki sighed, a hint of disappointment in her eyes as she realized her alone time with her brother would have to wait once again. 

But there was one thing nagging at the back of her mind: 

'How does Grey produce factory-level quantities of these weapons for his supposed army?'

[CONGRATULATIONS HOST! YOU HAVE CREATED DIMENSIONAL LEVEL WEAPONARY]

[ACHIEVEMENT UNLOCKED: DIMENSIONAL ENGINEER]

[10000 POINTS AWARDED]

[PROGRESSIVE QUEST ACTIVATED...]

[THE ARCHITECT]

[<ACCEPT >/ <DECLINE >]

interesting, I thought as I pressed <ACCEPT >. Well, now that the system recognized the breakthrough, I am more confident that my Next Gen Weapons will help me a lot.

After finishing the last adjustments, Tatsuya gave it a clean wash and gave me the gun.

I held it as I looked and admired the final product, the M4 in its legendary skin.

I activated the Runes and gave it to Simon, "Simon, Focus on the Weapon and let it bind with your mind....Don't resist it" 

"Alright Boss." he said as he closed his eyes and focused, the Weapon will do the rest. It connected and Bonded with his Mind as it started imprinting its Command-Control instructions into his memories.

He grunted as he held his feet. It is a Painful, but necessary process to maintain the quickest response time and user-weapon interface to be at its peak performance.

It's like a neural link for Jeagar but much stronger, faster, and more efficient due to the mind directly controlling without any neural pathways.

after a moment Simon opened his eyes in surprise but grinned as he turned towards the targets at different distances.

He started shooting as usual, but in firing he changed the gun form into a Sniper, 

More Accurately It's The DL Q33, He quickly bent one knee and controlled his breath as he shot down a very long-distance target.

And before everyone's shocked expression(not Tatsuya, but I believe he must be shocked from inside...) He again changed the form to an SMG, MAC-10, and Plowed down the closest targets.

Simon's grin was wide, a mix of satisfaction and challenge. 

"Boss, this is something else. I've never felt such a direct connection with a weapon before. It's like an extension of my mind."

His voice brimming with excitement. "The transformation is seamless, and the power is off the charts."

I nodded, satisfied with the result. "Glad that you like it, Simon."

"Like? Bloody hell I love this, It's the best type of weapon a Soldier could ask for. As one might never know what can happen on the battlefield. So thank you Very much, Boss" 

Tatsuya's expression was a mix of intrigue and wariness as he watched Simon effortlessly transition between weapon forms. 

"The weapon's adaptability is impressive. It's far beyond anything I've seen before. You've Created something really unique, Grey" Tatsuya commented.

"Grey, I still wonder about the scale of production. How do you plan to equip your entire army with these?" Miyuki said her mind.

"Well, the Bleeding Edge tech of Four Leaves Industry is proven to be capable of producing my Desired weapon system. Also Since Tatsuya doesn't want to let his Adjustments go out to other families and To save me the trouble of explaining to others about the blueprints"

"I guess the only place capable of this is..." I smiled as I didn't finish.

Miyuki's Eyes slowly widened as realization hit her, "don't tell me...your serious aren't you.."

I chuckle as I am More Determined and serious than I ever was till now, as now the Weapon is a reality.

Yotsuba Clan, Main House 

The atmosphere was tense as the security team scrambled to make sense of the unprecedented situation. The high-tech surveillance systems, renowned for their efficacy, were failing spectacularly. 

Their screens, usually a model of precision, were now showing frustratingly inconclusive data.

The Clan's elite security team was engaged in a frenzy of activity. Monitors flashed with data, and murmurs of confusion filled the room.

Yotsuba Maya, the Current Head of the clan, stood at the center of the chaos.

Her expression was cold . She had been informed about the intrusion: two figures who defied all known records and security protocols.

"What do we know about them?" Maya's voice was icy, commanding attention.

A Senior magician stepped forward, nervously clutching a tablet. "We've got nothing, Lady Maya. We've cross-referenced their faces with records going back at least a hundred years. There's no match. 

Our scans can't determine their magical strength or detect any Psions. They just appeared in an unsupervised alley. The wards didn't even react."

Maya's eyes narrowed. "So, they slipped through our defenses completely? And they made their way to Tatsuya's residence."

Another officer added, "Yes, Lady Maya. Tatsuya confirmed they're at his door now. He's investigating personally."

Maya's face hardened. "This isn't just a breach. This is an affront. How can unknowns bypass all our security and reach our most powerful mage?"

"We've never seen anything like this. It's like... it's like their magical signatures—"

"Are nonexistent," Maya said, her tone icy. 

"Have our field agents report in. If they're watching the intruders, they should have more information by now. Ensure all magical barriers and wards are heightened. We can't afford any more surprises."

Maya's voice cut through the tension in the room as she issued her commands with a sharp edge. 

Her words sent the officers into a flurry of activity as they scrambled to relay her orders. With her directives in motion, Maya's gaze turned back to the surveillance screens in front of her. 

The grainy, distorted images displayed there showed the intruders—two figures, Grey and Simon—moving with purpose. The interference caused by their unknown presence made it difficult to get a clear view, adding to her unease.

Her concentration was broken when a report came in from an operative stationed in the residential area. 

"Lady Maya," the operative's voice crackled over the comms, "we've confirmed that the intruders have made their way to Tatsuya Shiba's residence. It seems they have identified themselves to Shiba."

Maya's eyes widened slightly at the news. Tatsuya Shiba was no ordinary magician; he is the most powerful mage in the clan and the guardian of their future heir.

The fact that these unknown intruders had managed to find their way to him was both troubling and intriguing.

'Tatsuya has always been a wild card,' Maya thought, her mind racing. 'But his choice of guests is never random. We need to know who these people are and why they've sought him out.'

Without hesitation, Maya activated a private communication channel linked directly to Tatsuya Shiba's residence. Her expression was serious as she addressed him.

"Tatsuya," Maya's voice carried a note of urgency, "We've detected a breach, and it appears that two individuals of unknown origin have arrived at your residence. I need to know what's going on immediately."

In his Study, Tatsuya Shiba calmly looked at the communication device that had just activated. 

His expression remained unchanged, his composed demeanor unshaken by the situation. He replied with his characteristic calm, "Understood, I'll-"

The Magician attempted to reconnect, but the link was abruptly cut off. Maya's expression hardened. 

The interference was intentional, a deliberate effort to sever communication. This was more than just a simple breach; it was an attack on their very core.

"Lady Maya," a technician stammered, his voice betraying the tension in the room, "We've lost contact with him. The interference is too strong."

Maya's expression remained calm, though her eyes narrowed slightly. She turned away from the screens, her steps measured and deliberate as she moved toward the exit.

Before she could leave, a firm but respectful voice halted her. "My Lady, I request that you reconsider."

Maya paused, recognizing the familiar tone. She turned her head slightly, catching sight of Hayama Tadanori approaching her with his usual grace, despite the urgency in his steps.

"Hayama-san," Maya said, her tone cold yet measured, "Are you suggesting that we ignore this threat and risk the safety of our family by allowing this unknown duo to roam freely through Tokyo?"

Hayama bowed slightly, his white hair reflecting the light. "I would never propose placing our family in danger, My Lady. You know my loyalty."

Maya's gaze softened a fraction, acknowledging his devotion. "Then what would you have me reconsider?"

Hayama straightened, his expression composed but serious. "I am fully aware of the severity of the situation, My Lady. 

However, using Hliðskjálf would not only alert the other Six but could also signal inefficiency in our own security. Such an action might invite unnecessary attention."

Maya exhaled quietly, considering his words. "I understand your concern. So, what do you suggest we do, Uncle Hayama? I trust you did not come here merely to voice your concerns."

Hayama nodded, a hint of a smile touching his lips at her use of the familiar title. "Indeed, My Lady. This old man suggests that we convene a private meeting with our 'old friends'. By coordinating our efforts with them, we can ensure that our next moves are aligned and that this matter is resolved without drawing eyes."

Maya's expression hardened as she contemplated the proposal. "This would involve calling upon individuals I have little desire to see within our walls."

"True," Hayama acknowledged, his tone respectful but firm. "However, my years of service have taught me that this duo—whoever they may be—is yet to be done with us."

Maya remained silent for a long moment, weighing her options. Hayama, waited without pressing further. He knew that Maya's decisions were never made lightly, and he respected her deliberative process.

Finally, she nodded. "Very well, Uncle Hayama. Arrange the meeting with our 'old friends'. Ensure that it remains discreet and under our control. We will handle this matter with the precision and strength that the Yotsuba Clan is known for."

Hayama bowed deeply. "As you command, My Lady."

A Few Hours Later,

The hours passed slowly as Yotsuba Maya returned to her study. She sat by the window, her cold gaze scanning the Blue sky, but there was something else beneath that icy exterior—something she rarely allowed herself to feel.

Worry.

But Maya pushed the emotion aside. There was no room for it. Not now.

The knock on her study door came at last, breaking the silence. "Enter," she called, her voice as steady as ever.

Hayama Tadanori stepped inside, his demeanor composed, though the tension in the air was unmistakable. "My Lady," he said with a slight bow, "they have arrived. They're waiting for you in the living room."

Maya rose, her movements precise and controlled. She had steeled herself for this moment, for the meeting with the "old friends" of the Yotsuba Clan.

Despite her distaste for some of them, this was necessary. The safety of her family was at stake, and Maya Yotsuba would never allow anyone to threaten that.

She walked down the elegant corridors of the Yotsuba mansion, Hayama by her side, his silent presence a constant reminder of the responsibilities she bore. As they approached the living room, Maya felt the weight of the situation pressing down on her, but she maintained her composure, her expression unreadable.

She entered and Just as she was about to greet them, there was another knock—this time from behind them. The urgency in the knock was mirrored in the voice that followed. 

"My Lady, forgive the interruption," Mrs. Shirakawa, the head maid, called out, her tone strained. "You must come with me at once. There's something you need to see."

Maya's brow furrowed in confusion, a rare crack in her mask. She exchanged a quick glance with Hayama, who gave a light nod. 

"Lead the way," Maya ordered.

Mrs. Shirakawa quickly guided them through the mansion's halls, her pace quick, her usual calm replaced with a sense of urgency. 

They stepped out into the mansion's vast yard, where a group of guards and servants had already gathered, all of them staring upward, their faces pale with shock.

Maya followed their gaze and froze. 

There, Hovering above the Yotsuba mansion, defying the laws of both magic and nature, was a Man....