After explaining to Goh and Rubina what had happened yesterday, Jin took a sip of tea and moistened his throat.

"...... Jin-sama, you were doing that?"

"I wish I could have gone to Marikka's."

"Yes, I wish I could have gone to Marikka's."

The first thing they both responded to was Marikka.

"Well, I'll take you there one of these days.

Jin promised with a wry smile.

"And this <? ...... Unexpectedly, you found relics and people from the time of the <> on both continents, didn't you?"

Gou says admiringly.

"Indeed. On the Loren continent we found Arnold and Chelle. On the continent of Gondor, it was Phylicius and Delphina. There are always people who question the status quo, aren't there?

"Is it the inevitability of history, then?"

"I don't know. I'm not a historian or a fatalist, so I can't say.

At this point Jin changes the subject.

"What about the two of you?　Let's hear about it.

"Father, shouldn't we clear the dishes?"

Yes, I think so.

Goh and Rubina had finished their meal and were drinking tea.

Reiko pointed out to them that they should return the dishes and then go back to the coffee room to continue the conversation.

* * * *

"At ......?"

Jin drinks genmaicha (brown rice tea) and Goh and Rubina drink citran juice while resuming the conversation.

"Yesterday, you designed the <>, didn't you?"

"The main focus was on the flight control system, as an extension of safety.

The flight control system?

Yes. It started with discussions about what to do with the auxiliary brains, and the criteria for setting levels and ......."

"Oh, I see."

Considering safety, it seems that the conclusion was reached that even for <>, the auxiliary magic brain cannot be removed.

It may be similar to the discussion on ...... whether or not to put an automatic driving function in cars on the modern earth.

"For example, at the beginner level, I was told that it would be better to assume that <>."

"That may be true."

The <> created by Goh and Rubina can do somersaults even at level 1 with the support of its auxiliary magic brain.

However, if the player is a <>, they suggested that he or she should not be able to do so.

So there was a discussion about it."

"...... originally was Rubina's objection," he said.

"What, I'm wrong?"

"No, no, it's not about whether I'm good or bad. ......"

"Come on, let's hear what she has to say."

Jin calmed them down and urged them to go on.

"Yes, ......."

"...... Well, Rubina said that it's more dangerous to fly a plane if you can't control it to avoid danger and if you can't control it the way you want to."

"Yeah, that's an understandable argument."

"Right?"

What Jin imagined was the reaction of the pilot when he pulled back on the control stick with the intention of doing a somersault.

If you are going to do somersaults, you need to increase the engine power appropriately. Because you will stall.

If you want to be able to do somersaults, either make the elevator rudder not respond to the stick, or sound an alert .......

It is difficult to know what exactly would be better.

Furthermore, it would be a problem if the rudder is about to collide head-on with something, which rarely happens.

There are several possible cases, such as a cliff, a ship, an oncoming plane, a building, and so on.

Jin thought that it would be dangerous not to be able to control the aircraft in such cases.

"Yes, that's what they said.

I mean, Rubina said something similar, didn't she?

"That's right. But look at Jin-sama, he's thinking the same thing!

"Oh, come on!

In such a case, Jin was a little uneasy about letting the auxiliary magic brain make the decision on whether or not it was dangerous or not, instead of the pilot.

In fact, cars have been developed on the modern earth, but they are still in the .

However, they are still in the < stage, and optimal settings and reliable AI have yet to be developed.

"So, have you come to a conclusion?"

"Yes. We've come to the conclusion that it will basically follow the stick and sound an alert if there is any danger, just like we thought at first."

I see.

"So we'll make a prototype, and if there are any problems, we'll fix them."

"Well, that's a reasonable conclusion."

It is unlikely that the optimal setting will be found out of the blue. We will probably make minor modifications while operating the system.

"Ordinary people, say, Laurentians and Northerners are different..."

Yes, their physical strength and power are two to three times greater.

"In that sense, it would be nice if I could ask someone to take me on a Nile VIII sometime soon."

"Oh, that's right.

Jin thinks that Rhodes is the right person for the job.

At that moment, he saw an airship crossing outside the window.

It bears the coat of arms of the Kingdom of Celuloa, indicating that it is an official royal visit.

"The <> is a little further away, but what's going on?"

The next conference was supposed to be held on April 1 to coincide with the change of the fiscal year.

Therefore, Jin guessed that he was here for some other purpose.

"I hope it's not something troublesome.

With this thought in the corner of his mind, Jin returned to his conversation with Goh and Rubina.

* * * * * * * * * * *

The three envoys from the Kingdom of Celuloa are , brother of the king, , former general of the Guard of Honor, and , minister of agriculture and forestry.

They are Tomax Bartmann, Chief Superintendent, his deputy Ilmina Ratkin, secretary Fiona Fiasse, and secretaries Manon and Simone, the automata.

"Thank you for taking the time to see us.

Marcel, the king's brother, greeted the Chief Superintendent, Tomax Bartmann.

No, I heard you had something important to tell me.

"Yes, I do."

Marcel the Wang brother produced a document and began to explain. .......