"Oh, Master Jin, the 3rd , you have come well!

Ernest XVII, the third prince of the Kingdom of Egelea, welcomed Jin with open arms when he arrived in Miyagi to fulfill the promise he had made yesterday.

"I'll be on my way back to Japan in a day or two, and to tell you the truth, I was about to give up on you," he said.

"No, I promised you.

Jin laughed and decided to rent the castle's workshop to maintain .

"......3They say you're the <>."

"<> has great skills, doesn't he?"

"I'd like to take a look."

And so on, all the available magical engineers and civil and military officials on duty at the castle came to take a peek.

Rubina, of course, was the closest to the castle. Shu and Rhodtos were also by the workbench.

Lotte had already taken off her maid's uniform and was in the workshop, ready to begin maintenance.

"Now, Lotte, lie down there while I do the maintenance.

"Yes, Jin-sama."

Lotte lay down on the workbench as Jin told her to.

"<>"

Jin stopped the function first.

"Then, we will start disassembling."

After declaring this, Jin removed the exterior of Lotte. The onlookers are awestruck by his deftness.

"Oh, it's in such good condition.

Jin thinks to himself. He was relieved to see that the interior of Lotte was in better condition than he had expected, and was happy to know that it had been cared for by generations of masters.

"However, the movable parts ...... especially the joints are a little rickety, aren't they?"

"What?　Jin-sama, is this it?"

Rubina, who was watching, raised a surprised voice. She saw that the clearance between the sliding joints was less than one micron.

"Oh. That's about three times the original value."

"Three times as much as this. ...... How much was it in the beginning? ......"

Rubina looks stunned.

Receiving a small piece of adamantite from Reiko, Jin quickly applied the coating to the sliding parts.

The thickness of the coating brought the clearance close to Jin's ideal value.

"That's it."

The fit of the parts should be as if a line was drawn between them. That is Jin's motto.

"Next is the skeletal distortion. ...... no problem. No corrosion."

Since there was no deterioration of the magical muscles, we should apply <> to strengthen them a little.

"The magical nerve line is ...... a little damaged. ...... is done now."

The part that had become thin due to the load is deformed and the thickness is aligned.

"The ether converter and mana driver are ...... fine."

Magi devices for speech, vision, and hearing were also checked and any damaged ones were replaced.

The shield case for the protection against slave rewriting magic has not deteriorated either.

"That's it."

"...... Jin-sama, are you finished?"

"Finished."

Jin checks the exterior and installs it.

This time, in order to show the car to Rubina and Shu, the maintenance work was done at about one-third the usual speed, so it took about 15 minutes.

Still, it seemed to be an amazing speed for the gallery members.

"Did you see ......?"

"......I can't believe it, but I saw ......."

"This is what a Magecraft Meister can do. ......

"So the title is not for nothing. ......

A few words were exchanged in the shadows. Most of them were inaudible to Jin, but Reiko heard them all, and she felt proud.

"It's over."

"You were fast."

In about 20 minutes in total, Lotte's maintenance was finished.

Ernest XVII, who had been watching the whole thing, was speechless.

As he himself was familiar with engineering magic, he understood that the quick work Jin had done was not an ordinary one.

(...... This is the ?)

Once again, he was amazed at the insanity of it all.

"Restart Lotte. ......<>"

"Yes, <>."

Lotte wakes up and gets up. She quickly puts on the maid's uniform she has left by her side,

"Thank you, Jin-sama.

and bowed deeply to Jin.

"No . I'm glad to see that ...... you're being taken care of."

Jin replied in a gentle tone.

"Yes. I'm very grateful for your kindness to me."

Lotte was humbled. Jin looked at her and said,

"Lotte, what did you do with the tray and the mop?

She said "Yes, I did.

"Yes, they were broken when we had a riot a long time ago. I apologize ......."

"No, you don't have to apologize. Oh, it's broken. ...... Okay!"

Jin found an ingot of light silver in the workshop and added 6 and 4 percent of aluminum and vanadium, respectively, which he had smuggled in, to make <<64 light silver>>. The ingot was then processed and used to make a tray and a piece of silver.

He processes them to make a tray and a mop. The mop tassels are scraps of magical fibers for magical muscles.

We then carefully apply to increase the strength of the mop.

"This is good. This will make it more resistant to breakage than before.

Jin hands the completed tray and mop to Lotte.

"Thank you very much. I'll take good care of it."

"Uh, yeah. ...... you know, don't hesitate to use it when you have to, okay?"

"Yes, sir, I know."

Jin then turns to Ernest XVII.

"Your Highness, the maintenance of Lotte has been completed without delay.

"Oh, yes. ......, thank you, Jin-dono.

"Your Highness, I hope I can be of further service."

Lotte also bowed to Ernest XVII.

"Yes, I look forward to working with you."

Jin was relieved to see Ernest XVII clapping Lotte's shoulder with a truly happy expression.

Jin then decided to take this opportunity to ask something that had been bothering him.

"Your Highness, may I ask you a question?

"Hmm?　What is it?　Ask me anything you can. Oh, and please don't use honorifics. We seem to be close in age, and above all, it itches me to be addressed as "Magecraft Meister" by you.

"Ha, ha, thank you ...... thank you. ...... Well, the question I wanted to ask you is about an automaton named <>."

Tia. It is an automata that belonged to Princess Rieschen of the Kingdom of Klein, who became the wife of Ernest <1>400 years ago.

Since it was made based on the template left by Adriana, it boasts of a performance that sets it apart from other automata.

Jin restored Tia, which was malfunctioning at the end of its useful life.

"Well, you know about Tia, don't you? You are the third generation, aren't you?

"Yes, Reiko is here."

Reiko is like a cousin to Tia," Jin added.

"I see. ...... Tia is still alive and well. She is taking care of my sister in the country."

"Your sister ...... Princess?"

"Yes. She'll be three this year and she's very fond of Tia.

I didn't know that.

Jin was relieved to hear that Tia was doing well.

Jin promised to maintain Tia when he had a chance.