After parting with Reinhardt and returing to Hourai Island, Jin had decided the outline of his next objective.
Namely, it was âintervention so that I am not recognizedâ.
Part of being a hero was that the heroâs true identity remained a mystery until the final episode.
He had also made the helmet and reinforced clothing too which was perfect for it, Jin was thinking.
Then he got the idea of a gigantic robot. There was no way Jin wasnât attracted by the idea.
âAlthough thereâs no way I can intervene directly with the war.â
Itâll probably be fine as long as he intervened when common people or such seem to get exposed to danger, he thought.
Furthermore, he was thinking that it would be the best if he acted under the banner of âagainst the Unifilersâ.
Anyhow, he should stand out.
By using a laser or a railgun they wouldnât understand what happened, and Jin had a hunch that the threat they learned by heart would be small.
âIf it was a giant robo⌠golem, it should be intimidating enough, right?â
And so, first of all he decided to start with developing materials.
If he made it out of Adamantite the weight would be immense, so heâd use Light Silver as the base.
âHmm, if I recall correctly I was taught that titanium was mixed with aluminium and vanadium or molybdenum or something to create an alloy.â
Jin tried to desperately recall the knowledge from his past.
He guessed that Light Silver was titanium the neutrons of which had been replaced which Magitrons. Thatâs why it should follow the rules and properties that titanium had, he thought.
âAt any rate, nothing I can do but give it a shot.â
And so with Reiko as his helper Jin explored Light Silverâs alloys. Using Craft Magic, he created test pieces in an instant. A lot of them.
During the morning he had nearly discovered the most optimal combination of metals.
âJin-nii, welcome.â
Today too he had lunch with Elsa and Mine. It was cloudy today so they ate inside.
Seeing that the Pelshka fruit had been cut somewhat clumsily,
âOh, I see that today Elsa has peeled the Pelshka.â
Jin said. Elsa returned a smile to Jin who had noticed it.
The menu was freshly-baked bread, Citran marmalade, vegetable salad, vegetable soup, and Teee.
Judging from the seasoning everything had been apparently made by Elsa.
âHm, youâre improving every day, arenât you Elsa?â
Jin praised Elsa while eating.
âIâm glad you think so, Jin-nii.â
Getting praised, Elsa smiled happily.
After lunch, it was once more time for testing the new alloys.
âLetâs see, Light Silver 90, aluminium six, and vanadium four percent, maybe?â
Eventually he settled on the so-called 6/4-alloy. It seems that in this world aluminium was scarcer than titanium.
Vanadiumâs original atomic number was 23, the next one following titanium and the one preceding chromium, so even Jin could use [Analyze] to identify some slightly detailed information.
This worldâs ground contained small amounts of it, and even that mystery ore had been piled up in the corner of his storehouse.
You could say that the predecessor had had some foresight with giving orders to not discard such unknown ores and metals.
Now, returning back to the subject at hand.
Jin made the titanium, no, Light Silver 6/4 alloy, and tried spreading additional Mithril into it.
With this the strength of the bond between the atoms could be augmented with Magical Energy, and in the end its strength was able to rise up to seven times that of normal Light Silverâs. This was astounding.
âHmm, from now on it should be much better to use this alloy in place of Light Silver.â
Jin held such thoughts.
Now then, with the materials decided it was about time for manufacture. Jin called back the Smith golems from 91 to 100 to help him.
Originally they were under Laojinâs command constructing the aircraft carrier, but Jin didnât pay any mind to it and Laojin too understood Jinâs sort of whimsical nature all too well.
And that was because most of Laojinâs knowledge came from Jin.
âFor now, how about we try making three: a remotely controlled one, an autonomously moving one, and one which you get inside to control it.â
The giant robot types Jin knew were the type operated with a controlling device, the type that had its own intelligence to a degree, and the type you controlled from inside the head or such.
They all had the same basic foundation. They all shared the same skeleton, muscles, and exterior.
As they had the same foundation as the golems he had made until now, only they were larger, so with Reikoâs and the Smith golemsâ support he was able to finish the prototype in an hour.
What remained was inserting the control system. The autonomous type was roughly the same as a golem so it was simple to make. The orders it followed came through a ManaCom system.
âAlright, letâs see, âTitanâ Mk.1, move. â
The Light Silver-made âTitanâ was apparently named after the giant divine beings of Greek mythology.
Titan Mk.1 stood up in the open space in front of the research laboratory. It was a rather intimidating spectacle.
âAlright, try walking.â
As it was just a test it didnât yet have a speech mechanism, so Titan Mk.1 moved wordlessly. However, its gait was stable. The force caused the earth to tremble.
âAlright, try running.â
Abiding the order, Titan Mk.1 slowly started running. And then gradually increased the speed. Its movements werenât bad.
âReiko, howâs it look?â
Jin tried asking Reikoâs opinion.
âLetâs see, I donât think itâs bad. The Gigantes I fought earlier isnât worthy of comparison.â
âMh-hm, I thought so too.â
Then after reaching the end of the open space Titan Mk.1 properly turned back as youâd expect from an autonomous model.
âAlright, now itâs time for shadow boxing.â
Because it had portions of Jinâs information transcribed to it, Titan Mk.1 followed the orders diligently and started doing the motions. The quickness of its moves didnât match with its size. Jin was delighted his hypothesis had been correct.
âAlright, halt.â
Jin had Titan-1 go to a standstill so he could check that nothing had gone wrong with any of the parts. His face was brimming with joy.
âMh-hm, hmh, it was just a short while but thereâs nothing wrong with the joints, the skeleton, or the muscles! This one can be called a success!â
âCongratulations, Father. As expected.â
Reiko also seemed happy.
âMhm. And now letâs finish the type I control by myself first!â
Jin braced himself to tackle the âTitan Mk.2â.
Controlling it from inside the head would be dangerous so he stopped that idea, and decided to prepare a cockpit inside the chest.
The balance and other detailed coordination data was copied from Titan Mk.1âs movements, and the Control Core was made to move the robot in a style according to the pilotâs instructions.
Because Jin didnât think heâd be able to pilot a giant robot out of the blue like that.
And so the comparatively simple Mk.2 was finished. As it wasnât as dangerous as flying, Jin abruptly got in the robot.
âFather, will you be alright?â
âYeah, itâs like driving a car so.â
Although Jin didnât have a driverâs license, he had operated forklifts and such not on public roads but inside the factory grounds.
âAlright, Iâm going.â
Jin sat down in the cockpit inside the chest. As it was a prototype the chest wasnât armored so he was able to see ahead with just his eyes.
âGo!â
He stepped on the accelerator, which increased the output of the Ether Converter and the Mana Driver, and responding to that Titan Mk.2 began moving.
Jin felt the thuds as it began moving, and gradually it speeded up, until at the end of the open space he made a U-turn and came backâŚthen suddenly stopped.
ââŚFather?â
Reiko who had been moving with him looked up, and saw Jinâs pale face. Reiko then remembered why a condition like this happened.
She quickly jumped into the cockpit and,
â[Soothe]!â
She healed Jin with the Shouro Empire-style chant.
Jin looked disheartened.
âI suddenly felt nauseatedâŚâ
As its size was nearly ten times larger, the up-and-down movement while walking was also nearly ten times larger. That burdened the pilot and Jin quickly became affected with motion sickness.
âItâs unfortunate but the passenger-piloted type is a failure.â
Jin got down from Titan Mk.2 with Reikoâs assistance.
âPerhaps I would be fine in it?â
Reiko followed up. Hearing that, Jin said,
âI guess so. How about we make that be for Reikoâs exclusive use.â
He decided to finish that later, and began working on the third one, the remote-controlled Titan Mk.3.
This used the same system as the substitute puppet Jin made the other day.
He decided that the picture from the Magic Eyes built into the golem would be projected to a dedicated cockpit where he could sit and remotely control it. If he didnât do that, then if it happened to go far enough to be out of sight it would be troubling, and of course he did want to experience the sense of controlling it from the inside.
Until night he kept reiterating with various adjustments. Jinâs zealous handiwork was undoubtedly because he wanted to see the Mk.3 tentatively completed.