"Barrier cushion car?"

"Yes, that's right. We lower the strength of the barrier so that it conforms to the unevenness of the ground and deploys under the car. So no tires, no infinite track, no legs.

With these words, Jin builds a prototype car.

Reiko and Elsa helped him with great interest.

Jin took the prototype car to the plaza in front of the institute, and tried to get into it as if he was proof of his theory. It was Reiko who stopped him.

"Father, please leave the test drive to me.

In the past, Reiko had tested many of the vehicles that Jin had built. Reiko said she would do it this time, too, and got into the pilot's seat.

Okay, let's go.

Reiko's voice is clearly audible since there is an external speaker.

The magic engine started to work, and a barrier was formed on the bottom of the car body.

Jin examined the barrier a little, and found it to be a little too hard and uncomfortable to ride on. The ground was also a little gouged.

Reiko, lower the hardness of the barrier a little more.

Yes, Father.

By changing the hardness according to the road surface, the impact absorption will change. This time we will not have to gouge the ground.

Also, by changing the <>, we were able to change the height at which the car would be lifted up, in a range of approximately 10 centimeters to 1 meter.

After conducting these tests, they start the driving test.

"Okay, Reiko, try to drive slowly.

Yes, sir.

A force field generator is used for propulsion.

The prototype glides along. There's hardly a mark on the ground.

Oh, it works!

"Amazing!"

Elsa is frankly thrilled.

It was the first time she had ever seen a car without wheels or legs lifted 30 centimeters off the ground and run.

The car reaches the edge of the square at about 20 km/h and then makes a U-turn.

On the way back, he doubles his speed to 40 kilometers per hour and comes to a sudden stop.

This is possible because it is a force generator.

The entire body of the vehicle, that is, every molecule and atom that makes up the vehicle, is exerting , so no matter how fast the vehicle accelerates, it does not feel any G-forces.

"Okay, now all that's left is flight performance. Reiko, please."

Yes, sir. Let's go to ......!

Now the prototype floats vertically.

As for this one, Reiko is an experienced pilot and has a control core to assist her, so we can watch with peace of mind.

It can reach a speed of about 100 kilometers per hour.

Okay, good work.

Jin was satisfied with the performance of the plane, saying that it would be sufficient for long-distance flights using a special reconnaissance plane.

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

It is already late in the evening.

"Today was another fulfilling day. ......"

Feeling pleasantly tired, Jin headed home.

Soaking in the hot spring and stretching his arms and legs, the fatigue that had built up in his shoulders and neck seemed to flow away.

"I'm looking forward to it."

The thought of going to the moon in just a few days makes Jin excited.

"......And yet, a space suit, or ......"

"Father, it would be best if you are satisfied with the <>. ......"

Reiko reacts to Jin's mutterings. As Reiko, she can't help but worry.

"I won't stop you from boarding the spaceship, but if you want to explore the moon, please leave it to the substitute doll (double)."

When they raided the headquarters of the in the past, Jin was on the to give instructions, and left it to his double to take over during the raid.

"Hmmm ......"

"If you are dissatisfied, you can make a better ......"

At Reiko's words, Jin said,

"I see!　That's a good idea. Reiko, I get it. Let's do it!

He seemed to have been stimulated to create something, and shouted cheerfully.

"......Well, when you share a feeling, you can also take damage. ......"

He was half absent-minded at dinner, and after dinner, he became completely absorbed in his work.

"......Reiko, what did you say?"

Elsa asked in a slightly stern tone of voice.

"I'm ...... sorry. I told your father that I didn't want him to take any risks, so I suggested that instead of a space suit, he should make a good-quality substitute doll."

"...... convinced."

This is a theme that Jin seems to jump on.

"If ......, let's work together on this one too, so that we can finish something great, shall we?"

"......Elsa-sama,......, yes!"

Reiko was a little disappointed, but Elsa's words made her look up from her prone position.

"Goshujin-sama, I think the point is the limiter."

"Yes, that's right."

Sight, hearing, smell, taste, and touch. Each of these senses is transmitted to the pilot, but beyond a certain level, the senses are shut out.

Otherwise, for example, if <(=sense of pain) is transmitted as it is, if the doll is attacked, Jin, the pilot, could be damaged while the substitute doll is fine because it is a fake.

"It is essential to share the senses. Otherwise, you won't be able to feel the realism."

If he can't visit the exploration site himself, Jin wants to be able to feel it as much as possible.

"But please make sure that the body is as strong as possible," he says.

"Not only strong, but also the best in strength and speed."

Anne, Rolle, and Leffa lent their wisdom.

The specifications were being decided upon, and a blueprint was being drawn up in Jin's mind as to what kind of product should be made.

"Jin-bro, we'll actually make it tomorrow. ......, right?"

Jin noticed the worried look in Erza's eyes and nodded his head.

With everyone's help, it was only 10:00 p.m.

"Thank you. We have a rough idea of what we're going to do. I'm going to bed.

"Yes, sir. Good night, sir.

Good night.

Lol and Leffa bowed and left.

"Good night, master."

Anne went into the next room,

"Brother Jin, good night."

Erza also returned to her room.

Jin and Reiko remained.

"Ah, Reiko, thanks to you, I think I can make something good. Thank you.

"No, thank you. I was worried that I might have ...... said something unnecessary.

But Hitoshi patted Reiko on the head,

"No, I really appreciate it. Now I can enjoy space safely.

He then crawls under the covers.

"Good night, Reiko."

"Have a good night, Father."

The lights of the magic lamp are dimmed and the room becomes dark.

The only light is the moonlight coming through the window.

"...... Soon, I'm going to solve the mystery over there."

Jin glanced at the moon and closed his eyelids peacefully.

That night, Jin seemed to have had a good dream.