Today's lunch was grilled rice cake with isobeyaki sauce. That is, grilled, dipped in soy sauce, and wrapped in nori seaweed.

"Uggggh, these rice cakes are so stretchy!"

The rice cake is made from rice that has been bred on Horai Island for 400 years and is very stretchy.

The soy sauce is also delicious."

Perido and his friends have kept it in the ether stocker for 400 years.

By increasing the concentration of free magic element (ether) and sealing it, materials containing free magic element (ether) can be preserved semi-permanently.

This is thought to be because the free magic element (ether) inhibits chemical changes in the molecules and atoms of the material being stored.

"Eating grated radish is also good for digestion."

Grated daikon with a dash of soy sauce. It contains a starch-digesting enzyme called diastase (a type of amylase) and is good to eat with rice cakes.

"Yes, I like grated daikon. But not too spicy."

"Ha, I know what you mean."

Rubina is a child and probably still does not like spicy food, Jin thought.

Jin himself is not as fond of the spiciness of daikon (Japanese radish) as he is of wasabi (Japanese horseradish) or spicy red pepper paste, so he could understand Rubina's feelings.

The daikon I am using now is winter daikon, so it is not as spicy as summer daikon.

It is said that this is because the same daikon has a self-protection mechanism that increases the sugar content and reduces the pungency to prevent freezing when it is cold.

Taking Aokubu Daikon as an example, the middle part of the daikon, which is divided into three lengthwise sections, is the sweetest and most suitable for grated daikon.

The part with leaves is less pungent and moderately sweet. The tip of the daikon seems to be more pungent.

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

After lunch.

Neige and Rouge, who had eaten too much rice cakes, were lying down in another room, and Jin, Rubina and Marikka started to have a meeting.

"I've been thinking about it a lot, and I think an airplane would be the best choice for the <>.

Jin suggested.

"I think so too. Hale is a big place, and the roads are not well maintained, so cars are not suitable.

Rubina agrees.

"Why don't we make the same type of <>?

Jin thought, "We could make them in different colors, so they would be easily recognizable.

"Hmmm......... I'd like to make a new one myself."

Jin laughed.

"I can understand that. That's actually what I thought at first.

"Well, then..."

"Okay. Then, let's decide on the specifications for the <> family and see what kind of aircraft would be appropriate."

After all, the <> is the one that Jin made for this Hale, so it should be the most suitable .......

"Okay. The ...... users...... are, of course, <<7>>, Nee-chan and Roo, right?"

"That's right. But what about the piloting?　Maybe we should get a dedicated pilot."

"Yes, that's right. And then we'll see if we can't get anyone else on board, right?

"You know what I mean. ...... luggage, so you might want to allow room for at least two people."

"Well,...... Jin-sama is right, I'm learning a lot."

However, in Jin's case, he tends to give too much leeway. .......

Anyway, we decide that the maximum number of passengers is five, including the pilot. It's a little smaller than Jin's .

"Next is the type. Airship type or aircraft type. ......"

"Oh, what about a then?"

"What?"

Maricka said.

"Well, there used to be a disk machine that <> and <> used, didn't they?

"Oh, yes."

Jin recalled an incident about 400 years ago, when <> was controlled by <>.

"I think you said that <> was at the level of a toy, but it was certainly disk-shaped."

This means that <> = <> are familiar with such a form of vehicle.

"Stability will not be a problem with the gyro, and the control will be done by a special golem."

The design of the vehicle is so distinct from the Ars vehicle that it is immediately recognizable as belonging to 700672.

"Yes, I think it looks good.

Following Marikka's advice, Jin decides to proceed with the disk shape.

"That sounds interesting.

Rubina agreed.

"I've never made one before, though ......, so there are a few problems."

"What are they?"

"First of all, is there a back and forth?"

A disk is a . To put it simply, it is a circle, and a circle has no directionality such as back and forth or left and right.

"Jin-sama, do disks fly while spinning?"

Rubina, who had never seen a saucer in person, asked a simple question.

"No, I don't think so.

Jin also dug up his memory of the past, but he did not remember it spinning.

Then, Reiko gives him some advice.

"Father, aren't spaceships such as Adriana also rotating bodies?

This made Jin gasp.

"Of course they are. The <> is also designed to fly up and down.

However, this is based on the assumption of visual flight.

"Can we decide on a temporary front and back?

Jin replied,

"Jin-sama, how about a cockpit with a fixed orientation using gyros and a rotating hull around it?

Rubina came up with an idea.

"That sounds interesting too."

Jin, who was not averse to such a design, immediately began to consider it.

"The engine will use a , so there will be no problem at all.

The plan was growing more and more far-fetched.

"Let's just make it a spherical ship ......"

Jin said, "There is a series of 10-meter class spaceships, so let's make one that is one rank below that, with a diameter of about 5 meters.

"And it should be able to dive underwater."

"Oh, that's a good idea.

We can even go into space for a short time. The short time is a compromise between the amount of water, food, and other daily necessities and consumables we can carry.

Dangerous cosmic rays will be prevented by warding.

Since the size of the Magellanic Reactor is limited, the acceleration is limited to about 5G. It is about the upper limit of a roller coaster.

Of course, usually the acceleration pressure is canceled by gravity magic.

The material must be neo-based.

If it's a spaceship, it should have a magic brain instead of a pilot.

Rubina is no longer in the same boat with Jin. It is clear that Rubina is just like Jin, but no one intervenes.

Thus, the idea of a spherical spaceship with a diameter of five meters was settled on.

"It's too much to do today, so let's make the samurai golem first, shall we?

"Ah, yes."

Jin, Rubina, and Marikka are all familiar with making this golem.

They made a samurai golem based on the five-colored golem maid in 30 minutes.

Marikka was making it in 30 minutes,

(...... that it would take more time if we helped her.)

( that it would have taken longer if we had helped her).