The third day in full swing.

"Now, what to do after the fifth row?

Jin personally wants to get started on the powered suit as soon as possible. But Anne said,

"This Horai Island can be considered a maritime nation. If it is to be a frontline base, we should build an aircraft carrier.

It is an aircraft carrier, or in other words, an aircraft carrier, which he seems to have brought with him from Jin's knowledge.

"It would take too much time to launch air power from Horai Island. We need an aircraft carrier with a large transfer gate (warp gate) that can send airplanes.

"I see..."

Anne has a point every time.

"Okay, let's build it."

Jin and Lao Tzu start working on the concept.

The size of the ship would be 200 meters. It is equipped with a warp gate so that it does not need to carry more aircraft than necessary.

It is powered by the Magi Water Jet, a magical water propulsion system. Instead of one large engine, six smaller ones are used. It is possible to change course simply by adjusting the power output of the engines.

The deck has two layers. The lower deck is for all types of airplanes that need to glide, and the upper deck is for vertical takeoff and landing (VTOL) planes.

It is equipped with three warp gates that are large enough to accommodate all types of current aircraft.

Armed with a laser cannon. Six main guns and six secondary guns. There are 100 guns of each point-firing type. All of them have individual control cores. It is like a computer control system.

It has 10 water jet cannons as auxiliary guns. It is not developed yet, although live ammunition is also desired.

The crew consists of Marin and other Navy golems. Similarly, the Air Force (Air Force) and Army (Army) will be increased.

The Air Force (Air Force) will naturally be assigned to VTOL (Vertical Take Off and Landing) aircraft, while the Army (Army) Golem will be assigned to forward bases and the Corps of Engineers.

The Adamantite structure is lined with five layers of steel, and the surface is coated with mithril. Discharge capacity of about 20,000 tons.

Crew of 30. Its cruising range is theoretically unlimited, but limited to areas with free magic element (ether). The cruising distance with onboard magic is about 10,000 kilometers.

An improved speedboat is planned to be built and installed.

Three ships named "Hotaka," "Myoko," and "Asama" will be built according to the above specifications.

As expected, it is not something that can be done in a day or two, so the ship will be built slowly under the leadership of Lao Tzu. Jin was in charge of checking the important points and making new equipment.

The next thing Jin did was

"First of all, please make a gun that can fire live ammunition.

Anne said to Jin. She was quite a manager.

"Well, I'd like to make a gun that can destroy Gigarth with kinetic energy alone.

The robot no longer had a shred of self-reliance. It's almost refreshing.

"The recoil would be horrendous. ......

If it is to be mounted on an aircraft carrier, there should be no problem.

So, Jin started to make a slingshot in principle. It shoots bullets with the power of magical muscles made from the leather of sea dragons.

It is a development of the catapult.

The problem of the projectile falling out when it is pointed downwards is solved by having a bullet-holding function at the tip of the magical muscle. Normally, it is held in place and released at the moment of firing.

The rails of the gun barrel are divided into upper and lower sections, and the Magical Muscle moves between the rails to fire the bullet.

"Okay, the prototype is complete."

It was just before noon when the one-meter-long prototype was completed.

Since he was invited by Elsa for lunch, Jin decided to go to the Kunlun Island after one test-firing.

"Reiko, give it a try."

He was not sure about the recoil, so he asked Reiko to do it.

"Yes, Father."

Unlike ordinary slingshots, magical muscles are easy to set up because they can be extended by channeling magic power. The bullet is a steel ball two centimeters in diameter.

"This is just a test, so use the strongest one you can find."

"Yes, sir."

Reiko held it horizontally toward the sea.

"Here I go!"

She pulls the trigger. The magical muscle made from the leather of a sea dragon releases its tremendous power.

With a bang, the bullet flew in a straight line instead of a parabolic line, and was no longer visible to Jin at the moment it was fired. The clouds disappeared with the shockwave. The ionized air seemed to glow.

"Ah, that sound seems to have exceeded the speed of sound. It can't have overcome gravity, can it? I'd like to think so. You don't have ......, do you?"

Jin is stunned by the power. On the other hand, Reiko, who had fired the shot, was still recoiling a little backward.

"Reiko, how is it?"

"Yes, it was my first time, so the recoil made me fall back a little, but I'll be fine next time.

Hearing this, Jin decided to make the prototype one of Reiko's exclusive armaments after a little more modification.

* * * * * * * * * * *

"Yesterday, I saw a ship that looked like Marcia's."

After lunch on the Kunlun Island, Erza tells us that she saw a ship that looked like Marcia's. "There were several of those catamarans.

"There were several of those catamaran ships floating in the harbor.

"Well, it looks like Marcia's doing well."

"Yeah. I didn't see her.

Jin chuckled in his mind, "Well, if we meet there, it will be complicated as to why Erza is here.

"What are you doing now, Jin?"

Erza asks Jin, and Jin answers casually, since it's nothing to hide.

"Right now, I'm strengthening the military in Horai Island. I don't like wars, but I can't say that to protect it, and when I think of what they did to Erza, my guts start to boil.

Hearing this, Meane, who had been listening in silence, interrupted.

"Erza, did they do something to you?"

She was in a panic. Erza answers calmly.

"No. No, they didn't do anything to me. But they threatened me.

She tells them about Purcell. She had kept quiet until now. When Meane heard this, she was furious,

"What the hell!　What did you say?　Jin-sama, those people are not good for the world even if we let them live!

She said in a radical tone. Jin smiled bitterly and said, "Ah, you haven't changed at the core,

"I know. I'll destroy them when I'm fully prepared.

He replied and left the room.

"Well then, let's go back to Horai Island and resume our work. Thanks for lunch. And thanks for the clothes.

Jin said as he picked up the clothes he had bought yesterday and asked Reiko to carry them for him.

"Yes. Jin, I'll see you tomorrow for lunch."

"Yeah. See you."

Jin then returned to Horai Island.

* * * *

The test was over when the upper and lower rails of the gun got hot and deformed after Reiko had test-fired it several times.

"Ah, I guess even steel can't shoot continuously.

So we decided to rebuild it with adamantite. The melting point of adamantite is about 4500 degrees Celsius. It does not melt even when heated to white heat. It is a metal that cannot be made into anything without engineering magic.

The specific gravity of iron is about 7.9, while Adamantite is about 19.3. It is more than twice as heavy, but Reiko will have no problem with that.

The extra bonus is that it can also be used as a bludgeon. The total length is 1.5 meters. A little larger than Reiko's height.

The bullet is a cartridge type and fires 10 rounds. It fires a bullet 3 centimeters in diameter, one size larger than the prototype.

Standard bullets are steel balls. Adamantite-coated bullets are used for better penetration, and lead balls for more power.

In the case of lead, the bullet deforms and sticks to the target upon impact, transferring almost 100 percent of its kinetic energy to the target.

"There is no rifling on the barrel, but it should be enough for this kind of power.

The gun flies at a maximum speed of about Mach 20, so it can be sighted in a straight line as long as it is within visual range.

"Hmmm, the name is ...... annoying, let's just call it a rail gun."

I guess it's not wrong in the sense that it fires bullets from between the rails.

"Thank you, father, for this wonderful weapon. From now on I will use it to eliminate your enemies.

Reiko says to him,

"No, you have to think about who you're fighting."

Jin remembered to nail her with a nail.

"Master (My Lord), I have something to report.

Laozi, sensing that Jin's work was finished, spoke to him.

"Yes, what is it?"

"Yes. I copied some knowledge from Ms. Meane for the fifth column (quinta), and in doing so, I found some traces of mental manipulation, so I thought I would report it to you.

"Mental manipulation?　Hypnosis?

"No, it is not that powerful. I think it's more like seduction.

"Seduction?"

Jin has never heard of this magic before.

"Yes. This was also in Anne's knowledge. It's a spell to make a person consciously do a certain action. If you use it in a way that encourages the person's desire, it does not seem unnatural. It is not so unnatural when it is used in a way that encourages the person's desires.

"Hmmm ......"

Meane's seemingly unusual obsession with Elsa. If it is due to a suggestion (seduce), it makes a lot of sense. Though we don't know to whom it was made.

So, it's lifted now?

Yes. I think it was a shock to the head or the body.

All right, see if you can find a way to disarm it.

Yes, sir.

There's a chance we'll be dealing with a lot more of them. Maybe even Elsa's brother Fritz.

Jin is even more aware of the fact that this is not a simple matter.

* * * * * * * * * * *

In the evening, Reinhardt called us on time and told us that he was preparing to cross the Asur River at a town called Dali, instead of stopping at the capital, Esair.

Again, we were told that we would have to wait for 3 or 4 days.