The Daily Life of the Inventor in Another World

Evening

[Aurora OS Boot Up]

[Boot Complete]

[OS Start-Up In Progress...]

[Aurora Battle Support Online]

[Aurora H.U.D. Online]

[Exoskeleton System Online]

[G-Force MAX Support Online]

[Diamond Triangle Core Stable]

[C.E.F.S. Online and On Standby]

[S.N.M.S.S. Online and On Standby][Synchronizing systems...]

[Synchronization Complete!]

[Freedom Scale Mail MK II Ready and Standby!]

Marcus quickly checked the system of his suit before approaching the lowered ceiling, where the driveway came into view.

Within moments, he was outside.

"Deploy wings. Time to fly south."

[C.E.F.S. Deployed]

The entire set of wings on his back ignited, propelling Marcus high into the air. Within seconds, he was soaring far above the ground. His Scale Mail was now linked to a GPS satellite, which would guide him toward his destination.

Less than an hour later, the visor shifted to display a magical view, and Marcus began scanning the area for his targets.

Hmm... this is going to be a bit annoying...

Several hours later, Marcus finally detected multiple Sacred Gear signatures concentrated in a single area. His eyes brightened with interest as he changed course and headed toward them.

Soon, he arrived at a makeshift warehouse where several individuals appeared to be resting. They likely wanted to keep a low profile to avoid drawing attention from the Greek Pantheon.

Hmm? What's this...? Marcus thought, noticing a peculiar layer of energy in the air.

"Scan the energy in the air."

[Scanning...]

[...37%]

[...71%]

[...91%]

[Scan Complete]

Moments later, a new window popped up in Marcus' vision.

"Heh... Georg's Sacred Gear. Rather than hiding in a separate dimension, they use this as an early warning system. Anything larger would certainly attract the Pantheon. Quite clever."

After studying the barrier's mechanics, Marcus smirked.

"In the end, this doesn't concern me."

With a flick of his wrist, Phobos materialized in his hand, aimed at Georg, who was still asleep.

"Deploy Negation Magic Field. Target Sacred Gear signature."

[Deploying S.N.M.S.S.]

With a burst of light from his energy wings, the entire warehouse area was bombarded by the Solomon Negation Magic. Marcus fired a powerful bolt of electricity from Phobos.

BOOM

Electrical Crackle

"WE ARE UNDER ATTACK!!!"

A male voice shouted from inside the warehouse.

Marcus didn't hesitate. He continued firing with both Deimos and Phobos, sending bolts of lightning and thunder crashing down onto the building. The majority of the hero group was incapacitated in moments. As the structure began to crumble, he descended through the partially destroyed roof, moving with precision.

"(Preemptive strike successful.)" he muttered to himself as he entered the wreckage.

A large, burly man emerged from the debris, pushing himself up with an annoyed look.

"Who the hell are you?" he grunted.

"(An inventor, engineer, enthusiast, Sacred Gear creator, and collector. And you, Cao Cao, have done me a great favor by gathering so many rare Gears.)" Marcus replied cheerfully, raising Phobos and pointing it directly at the man, who now looked visibly sweat-soaked.

"Oh yeah!? Let's see how you like th---" The man began, but he was quickly interrupted by a loud clap of thunder. A ball of lightning struck him squarely, causing him to collapse, paralyzed. The man, a descendant of Heracles, was rendered helpless.

"(You're irrelevant. Be silent.)" Marcus said coldly, his attention unwavering as he shot again.

"You... Who are you? I've never seen Sacred Gears like yours…" the man stammered.

"(Did you miss the part where I said 'inventor, engineer, and Sacred Gear creator'?)" Marcus responded, his tone flat. "It doesn't matter. I'm only talking to you because you did me a favor. Now, pick an underworld to descend to, and pray to the deity governing it."

Marcus aimed his rifle at the sweating man, who was frantically searching for a way out. His trembling hands moved to call forth the True Longinus...

"Wait! We can discuss this! You're human, right? I'm trying---" he began, but before he could finish, a second bolt of lightning struck him, silencing him forever.

"(I don't care what you're trying to do. Science comes first. Your Gear is at its peak, but the Longinus... unless you have something comparable, there's no room for negotiation.)" Marcus said as he approached the fallen man. Magic circles formed around him, and moments later, a translucent orb containing a golden spear emerged. Marcus quickly collected it.

He then aimed Deimos at the man's lifeless form, and a pitch-black beam with red wisps erased the rest of him from existence.

At that moment, a feminine squeal echoed throughout the warehouse. Marcus turned sharply and saw a blonde girl with blue eyes, her face pale with fear, staring at him.

He pointed Phobos directly at her.

"W-Wait! D-Don't shoot! I surrender! I surrender!" she cried, immediately falling to her knees and touching her forehead to the ground in a Japanese-style dogeza.

"(You... are Jeanne... with a Sacred Gear that creates Holy Swords, correct?)"

"Yes! I can do that! I can create as many as you want! Just don't kill me!" she pleaded, terror evident in her voice. She had just witnessed how easily their strongest member had been erased.

"(Hmm... very well. Tell me, is it true that you are the reincarnation of Saint Joan of Arc?)" Marcus inquired, stepping closer.

Jeanne had to look up, her eyes tracing the imposing figure of Marcus, now towering over her due to the Scale Mail. The glowing blue eyes from his helmet only added to his intimidating presence.

"Yes! I am! My Sacred Gear is deeply connected to her soul. It's passed down through generations. According to the Church, we look nearly identical, and every reincarnation of Joan of Arc possesses the same Sacred Gear."

"(I see... It's fascinating how the Gear remains bound to the soul even after death. There's probably an additional system in place.)"

Jeanne swallowed hard as the mention of death felt disturbingly casual. She quickly realized she was dealing with a cold, calculating researcher.

"(I've made my decision. You'll come with me. I'll make you one of my maids. It will be a fitting statement to Heaven—that their Saint is nothing more than a servant in my service.)"

The blonde girl slowly nodded, a nervous gulp escaping her throat. She knew this was better than the alternative.

"As you wish..." she murmured, bowing again.

Marcus nodded in approval before turning his attention back to the task at hand, continuing to collect the Sacred Gears.

Jeanne could only watch in silence, her heart heavy with dread, each time she saw her former comrades fade away into nothingness.

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