The Daily Life of the Inventor in Another World

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The test was a resounding success. The gun was a beast—too powerful. Now, I need to adjust it. Lower the power and deal with the recoil.

After a healing sleep, some cuddling, and a good snogging, I was ready to get back to work the next day.

First, some inner design changes.

Back to tinkering with the M.T.M. Instead of simply pressing the button and getting a bolt that could potentially kill an Ultimate-Class, now I need to hold the button for a bit longer.

This means there are charges, and I need to be able to see the charge. This means…

Groan

"Why can't this be easy?" I brushed a hand through my hair, then saved the project and closed the window on my PC.

Thinking it over for a bit, I suddenly recalled something interesting...

This meant creating another new project. I'll code-name it Aurora. The purpose? A visor. An H.U.D.

Wait, this could be important. I thought about it for a moment. This is key. My aim is terrible, and having an H.U.D. will be essential—especially once I have Scale Mail.

If it's linked directly to my database and my future Sacred Gears, I'll be able to see more than anyone else. Countless different visions…

With renewed vigor, I started working on the visor. Thankfully, this was much easier than the original gun design.

It wasn't new technology for me. What took time was converting the technology into a magical version. Runes… a different type of display.

Nonetheless, once I found the right angle, it was child's play…

...

It only took a few weeks.

"So what's with the glasses?" Serafall asked, picking up the sharp-looking glasses.

"That's Aurora H.U.D v2.0.1. Glasses that will tell me pretty much anything I need. They're directly linked to my rapidly growing database downstairs."

"You mean the new room you made next to your assembly line?" Serafall asked, curiously putting the glasses on.

Instantly, her eyes widened.

"Woah! What is this? It's like something out of a Sci-fi movie!" she exclaimed in awe.

"Sci-fi?" I chuckled.

"Yeah! It's like the glasses are smart! They highlight the technology in the room, and they give detailed explanations! They even help read your mood!" She added, her voice filled with fascination before a thoughtful look crossed her face.

"So... can I get one?" she asked, pleading.

"I can make contact lenses," I replied with a sigh.

"Great! It'll help me read the room in meetings!" she said, as if it was no big deal.

"It's not that simple. The information has to come from somewhere. At the moment, the glasses are linked directly to my database downstairs. They're essentially useless outside my city, as there's no database to access."

"...So, they're useless in the Underworld?" Serafall asked, a bit disappointed.

"It's still a new magical technology. My rough estimate is that it's about 30 to 40 years ahead of human standards. And it has a limited range because it needs to be connected to my network. If you have my network in your work area, you could use it. You'd even be able to video chat with me or access anything I've stored with a thought alone."

My explanation earned me a shocked look from Serafall.

"This is amazing. But I assume this is why you've postponed your work on the guns?" she asked, inspecting the glasses more closely.

"Yes, this is one of the key components for my Scale Mail. The Aurora system will help me control the guns—the energy charge, their mode, and most importantly, the aim," I explained with a sigh.

"I see… this truly takes a lot of time. How many years has it been since you started with the guns?"

"Not quite that long. What takes time is building the proper tools. Now that most of the tools are done, future projects won't take as long," I said, leaning back in my comfy PC chair.

"Hmm… now that you mention it, you could just make the guns with the press of a…"

"Button... or voice command… or even just think about it when the glasses are on," I finished for her.

"...That's amazing… and terrifying. You're giving me a whole new perspective on this whole researcher/inventor thing. I thought Ajuka was scary with his Kankara formula and sharp mind, but I bet he has something similar to this in his man cave."

"Hmm, possibly. But from what I know about him, he's more focused on the laws of the world and energy. I'm more into engineering."

"Hmm, probably. But you're venturing into energy with the Power of Destruction. I'm sure Ajuka hasn't delved into Bael family magic… or maybe he did, but just didn't say anything. That's why I said you two are similar. One thing's for sure—I don't want you two to meet." She added that last part with a terrified look, though if it wasn't for Ars Goetia, she'd probably be even more worried.

"And why not? I'm pretty sure we could make some interesting projects together," I said, raising an eyebrow.

"See! That's the point! I'll lose you to him!" Serafall pointed at me dramatically.

I deadpanned.

"I'm pretty sure I'm into the female side of the spectrum."

"And he could sell his niece to you, and you'd have his family and everything!" Serafall insisted.

"...Right... I'll leave you to your conspiracy theories. I still need to add Aurora to Castor and Pollux." With that, I returned to my work, while Serafall continued looking paranoid.

It seemed she truly had a wild imagination. I thought I was the one with the imagination for building stuff. Or maybe it's a female thing? Perhaps I should consult one of the Love Goddesses—preferably one with her powers sealed off and chained up. After all, they'll likely try to drain me...

With that minor goal in mind, I returned to work on the M.T.M system again. This time, I was adding the Aurora system to it.

At this point, I realized I should create a core system instead of this disjointed mess.

After thinking about it for a moment, I looked at Serafall again. She was still deep in thought about that whole Ajuka thing.

"Right… So, did Sirzechs enjoy the new toy you gave him?"

"Hmm? Oh, that! You only just remembered about the toy?" she asked, deadpan.

"It's already a finished invention. I forget about those quickly enough," I shrugged.

I needed to distract her from that strange idea she'd started thinking about. I was getting goosebumps.

"Right… Sirzechs said you have a favor from Lucifer himself. That's a big deal. I don't know how long this will stay under wraps, but eventually, the rest of the devil world will hear about it. Sirzechs is over the moon with his signed contract... and yes, it's the greatest invention any civilization has ever seen," Serafall said seriously, her blue eyes glowing faintly. I could feel the intense presence she was radiating.

The paperwork... how deadly was it for them? I mean, she fell in love with me because of it… this world is strange... I internally shook my head. At least she'd forgotten about the whole Ajuka thing…

~~~~~~~~~Inventions/Tech/Sacred Gears~~~~~~~~~~~~

M.T.M (Motion to Magic) Castor & Pollux MK IV:

A pair of magic casting (shooting) devices in the shape of a hand cannon.

Classification: 

Pseudo High-Class/ possibly Longinus class Sacred Gear made up of 73 magic circles fused into several systems.

Castor is a longer and much bulkier design made for energy Beam shooting, while Pollux is much more slender and is intended to be used as an off-hand weapon that uses barrage bolts of energy.

Composition:

Made from a mix of Alchemy created metal and human metal Titanium. The pair of guns are much lighter than they should be.

The inside of the devices are laid out with barrier magic which absorbs excess heat and is then converted into magic and is sent to the Barrier Rail System

The barrel inside of the gun is laid out with thin layers of diamond created purely from transmuted material making it extra sensitive to magic.

In the end, the pair of weapons are made from transmuted Metals and diamonds.

Key magic techniques inside:

Advanced M.T.M System: Using a magic circle to capture motion and then turning the motion into energy and then energy into Magic even a regular human can use this weapon as they all need to do is press the trigger.

To take a step further, the sensitivity and controls over the motion absorption has been severely improved. Depending on how long the trigger is pressed it can be a small bolt or a bolt powerful enough to one-shot a high-class devil.

Diamond Barrier Rail System: By using barriers like rails empowered by Acceleration circles the blast builds up the force, the longer the rail is the stronger the blast will be at the end of the rail.

To take step further diamonds have been added in creation of the barrier rails.

This generates friction which is absorbed by the barriers and added as extra power upon the release.

Revolver System: A simple revolver system positioned behind the Diamond Barrier System and above the M.T.M system. This system is responsible for what kind of type of bullets the weapon will release.

Type of 'Bullets': Beam, Bolt, Scattershot, Cannon

Cartridge Loader: A function added to the Castor and Pollux which allows to 'load' a cartridge of specific magic. It's based on human guns and bullet cartridges.

So far only the Power of Destruction cartridge has been created.

Aurora Control System: A system that allows Marcus to control and aim the pair of guns. It allows him to see the weapon charge power and which type of Bullets are loaded in the Castor and Pollux.

~~~~~~~~~~~~~

Aurora Visor Glasses:

Glasses made from magic and technology, most possibly the most advanced piece of tech on Earth at the moment.

Classification:

A magic device that assists the wielder. Either through thoughts or voice command.

Composition:

Made purely through transmuted materials like rubber, glass, metal.

It has 6 very specific and complex magic circles which are at a similar level to Ars Goetia in complexity, from reading mind, to visual manifestation, to intent-based.

Key magic system and technology:

Aurora Assistance OS v2.0.1: An operational system based on human technology but manifested through magical means. The core of Aurora H.U.D

Aurora Display: Pair of glasses which work like a computer screen. This can be turned on and off with mere thought or voice command.

Aurora Connection: The system is responsible for the flow of information from the glasses to the main database. Without it, the glasses would be useless. The range for now is Marcus' hometown.

Aurora Sacred Gear Assistance: The system responsible for simplifying the control of Pseudo Sacred Gears.

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