"Fu ......"

In the command center of Horai Island, Jin stood up from the pilot's seat of his "doppelganger".

It is already morning outside.

Erza, who was supposed to be taking a nap, is nowhere to be seen.

"Father, it is already 6:30 in the morning.

Reiko told Jin the time.

"Oh, it's that time already..."

I'm sure Elsa-sama is preparing breakfast.

"Speaking of which, I'm starving. ......"

Jin stood up and stretched,

"I'll leave you alone for a minute. You take care of the rest. Let me know if you need anything."

<

He left the control room and headed for home.

"Ah, Brother Jin!"

In the kitchen, Erza is preparing breakfast.

"Why don't you go take a bath, it'll take a while?"

"Yes, I'll do that."

Jin loves taking a bath in the morning.

The Nidou family's bath is a hot spring, so he can take it anytime.

"I'm so tired."

Jin stretches his arms and legs in the bathtub and turns his head.

"Father, I guess that's all over for now, isn't it?

Reiko, who was waiting to wash Jin's back, asked.

"Yes, I think so. We won't know how effective this treatment will be until a little while longer.

"Even so, those people on Onogoro Island are very strange, aren't they?"

"Yes, they are. ...... But that long-range telescope was informative. Can't I build one too? I'll try later.

I have only heard of the principle of sending light waves using magic waves as a carrier wave.

As for Jin, I know the principle of radio, i.e., transmitting sound waves using radio waves as carrier waves, from my school lessons.

I wonder if it is possible to do the same with light.

I thought I would give it a try in my free time.

"Oh, miso soup tastes good.

"Good."

It was miso soup with fried bean curd, Jin's favorite.

Dried plums, pickled vegetables, grilled fish. It was a standard breakfast.

"I'm feeling calmer now," he said.

Jin let out a small breath as he drank some hojicha (Japanese green tea) after his meal.

"What are you going to do today?"

We'll have to wait and see for a day or so before we can do anything about it," he said. So I'm going to start working on the other side.

"Another side?"

Jin explains to Erza. Jin explains to Elsa about the telephoto device that will allow them to see far into the distance without leaving the house.

"Surely, <> ......?　said such a thing, but can it be ...... done?"

Even Jin can't complete something completely new in a short period of time, not even for a day. Elsa was concerned.

"At any rate, I have a vague idea of the principle of ....... I'll give it some thought. If we can complete it, it would be a very effective device.

Then I'll help you.

Father, I'll help you, too.

Thank you.

I'll take care of it.

And then, at the end of the morning.

"...... seems to be a little too much for me.

It was impossible even for Jin to develop it in such a short period of time.

"Even if we try any harder, we won't be able to do it by the end of the day. Then let's just give up.

"Too bad."

I'm sorry, father.

"Well, you know... but we don't have much time to prepare.

But that doesn't mean I give up, Jin said, and stopped the work.

"Shall we have lunch?"

"Yes."

Since Jin, Erza, and Reiko had their hands full, Soleil and Luna were preparing lunch for the day.

"Oh, three-color buckwheat noodles."

Soba water is also available.

The three colors of Horaijima soba are << Sarashina>><><>.

When buckwheat seeds are ground on a millstone, the first flour that comes out is white and has an elegant aroma, and the soba made from this first flour is called Sarashina. It is a name only for Horai Island, based on Jin's hazy memory.

The buckwheat with the outermost husk removed and the sweet peel attached is called Hikigurumi-gurumi in Horai-jima. If the hulls are ground together, the buckwheat is too dry.

Chasoba is a type of Sarashina-based buckwheat noodle mixed with powdered green tea. You can enjoy the subtle aroma of tea.

In addition, there are wasabi, nori, and green onion, so you can enjoy a variety of flavors.

"Yes, it's delicious."

"Yes, it's delicious. I like ground soba."

Jin, who loves buckwheat, could not say which one was the best, but he thought the ground buckwheat was the one with the best buckwheat flavor and aroma.

After finishing his buckwheat, he drank soba soup mixed with soba-yu (buckwheat water) and finished with soba tea.

"Well, I enjoyed it. Thanks for the food.

"Thanks for the food."

Erza seems to be satisfied, too.

Now, the old man said to her, "Well....

"Well, I checked with the old man and things haven't moved yet. He said there is still about seven hours to go.

"Well, what are you going to do?　Should we continue with the telephoto equipment?

No, I think I'll do something else.

What are you going to do?

"Strengthening the air defense system."

Jin was thinking of taking countermeasures in case some of the debris got close to Ars.

"It's too small, we may not be able to handle all of it, but I hope we can reduce it."

If it burns up in the atmosphere, fine, but some of it might reach the surface. We wanted to avoid that.

"Specifically?"

"Attach the transporter cannon to the <>. Then we'll add five to ten more 10-meter class starships to be on the lookout."

"...... Okay. I'll help.

Thank you. But take it easy. The old man will take care of everything."

All of them are things we have made before, and Jin can tell us how to install them on the watcher.

Or rather, he has already given instructions.

What about you, Brother Jin?

"I'm going to upgrade the old man's functions."

<

Jin was thinking of making it a superior magic brain.

And this will eventually save Jin.