"Brother Jin, what's wrong?"

Erza wonders as Jin, who was in the control room piloting the doppelganger, suddenly raises his voice loudly.

"......No, I've noticed something."

Saying this, Jin temporarily left the control of the doppelganger to the old man and turned to Erza and Milowina.

"Hey, Milowina-san, do you think those ruins could be the tombs of royalty?"

"Huh?"

"Huh?"

Elsa and Milowina shouted at the same time.

"In the world I was in, such were supposed to house the remains of saints. At least in the early days.

Originally, a was a place to store the remains of the Buddha, and it seems to be the same thing as a <.

I'll leave it at that.

"...... That was a blind spot."

Milowina answers with a slight smile and apologizes.

"Yes, I think I have read something like that. I had forgotten about it until you mentioned it. I am sorry.

"I thought that ruins meant that there were artifacts left behind."

Elsa looks down a little.

Right?

Then the old man reported.

The Shinobi troop took it out of the Pagoda and brought it back using the warp gate of <>, and the old man analyzed it in a hurry.

"You mean?"

<>

"I see... ......"

This must be a <.

If anything is missing, it's probably a burial, and if we try to dig it up, we'll be .

Jin orders everyone to leave.

"Yes, that's a good idea.

Milowina agreed.

The shinobi troop immediately withdrew from the area. Reiko and her doppelganger also left with the transfer device.

Lando's unit returns to the island with the Raptor squad.

The doppelgangers and the shinobi slowly return by , but Reiko is the only one to return by the warp gate.

"Father, I have just returned."

"Thank you."

Jin had not gained much in spite of all the preparations he had made, but he decided to let this happen.

"Yes?"

"Yes, the structure of the golem on the first floor and a gold-based magic alloy.

Oh, that's good news.

<

That's even better news!

<

"North or ......"

Jin, who had received this information, had a thought that it might be possible, but he kept it to himself, not saying it out loud because it was too vague.

He then turned his mind to technical matters.

I was not going to talk about technical matters, so I decided to talk about the technical aspects.

Since this was going to be a technical talk, Milowina went to a hot spring. She was accompanied by Kai.

Jin and Erza remained in the command center.

A simplified diagram drawn by the old man appeared on the screen.

"Oh, interesting. An interchangeable system, ......."

The model is clearly not an Adriana type.

The arms and legs are easily interchangeable.

"It's possible because it's not an endoskeleton."

"...... Jin brother, the structure of the joints is interesting."

Jin and Elsa were interested in the screen.

The joints are spheres.

It is similar to the spherical-jointed dolls. However, since no rubber or springs are used, there are no grooves or holes in the joints.

"Brother Jin, is it magic power that's keeping them together?"

"...... Well, it's a little hard to tell from this diagram."

<> and a weaker magic.

This is the information from the shinobi troops who were at the scene.

"Hmmm......<<> or ...... so it seems."

Jin thought for a while and came to a conclusion.

"I guess it is <> by magic power. As a force, it would be the same quality as the one used by the ."

"...... interesting."

Erza also seems to be interested in Jin's guess.

"Yes. It is worth studying."

And one more thing, <>.

<

"I see!　You replaced the silver used to make 22-karat gold with mithril silver!"

As expected of Jin, he seems to have figured it out right away just by asking.

<<91.7% is gold, to which copper, silver, and mithril silver are added.

"I knew it."

"That's true.

"I know that. ......Okay, let's study the gold-based magic alloys as well."

<<>

Jin gave instructions for the development of a gold-based magical alloy, Magigold, as he thought it could be of use.

* * * * * * * * * * * * *

After all the instructions are finished, Jin and Erza finally have time to relax. They are now drinking tea and relaxing.

Reiko is standing a little away from them out of consideration.

"...... I guess that's all for now."

"Yes, I think so."

"And then the world conference."

"It's a lot of work, but it's worth it. ......By the way, Jin."

Erza looked into Jin's face and asked.

"You still haven't announced about the old Leonard kingdom or about Milowina?"

"Oh, about that..."

Jin closed his eyes to collect his thoughts.

"I'm starting to understand a little more about my ...... predecessor, though."

Then he suddenly opens his mouth.

"?　......Yes."

"There's something I still don't understand. Why did my predecessor retreat to Horai Island?

"...... ah."

Jin opened his eyes and looked at Erza.

"The time when he was with <> and the time when he shut himself away. I don't know what happened in between."

"...... sure."

Then Jin skipped the explanation and spoke his conclusion.

"That's why I'm still hesitant to announce what Erza just said.

"...... understand."

Despite her skipped explanation, Erza seems to have understood.

"If we are going to explain the past history, we can't just talk about the old Leonard's Kingdom and Mr. Milowina, but we have to explain about the <> as well. Then I would have to tell you about my predecessor. But, since we don't know why our predecessors were persecuted, Brother Jin is hesitant to disclose it. Is ...... correct?"

Jin nodded his head. I don't want to unnecessarily disrupt the meeting.

"Yes, that's what I meant. Maybe I'm being a bit too timid, but I want to make the first world conference a success first."

Jin said, "We can let people know about the past after that. Erza agreed.

"Yes, I want to make it a success."

After saying this, Erza looked at Jin and smiled.

"I think Jin will be able to overcome any problems that come his way, though.

Jin smiled back at Erza.

"Yeah. I have Erza and the rest of my family ...... and Hourai Island."

"Yes, I will help you as much as I can."

"Thank you, Elsa. ...... And Reiko, come here."

"Yes, Father."

Reiko walks up to him.

"You're here so I can do what I want without having to worry about anything. I'm counting on you to do the same for me."

Reiko's face breaks into a smile when Jin calls out to her.

"Yes, I'll leave it to you!

"And you, my lord."

<

The old man answered.

"Taibai, Xiao Laojun, Gengshen, Jack, Soleil, Luna ......."

One after another, Jin listed the names of those who supported him.

"Please keep up the good work."

There are only 8 days left until the World Conference.

The wind in the invincible island of Horai had turned to summer.