I, Uchiha Hikaru, have joined the chat group.

Chapter 45 Doraemon and the Black Flying Cloud

In the laboratory.

Bulma first took out a pair of oddly styled goggles and gloves, put them on Uchiha Hikaru, and then put a pair on herself. She then took out a device that resembled a flashlight. After pressing the switch, a narrow, blade-like light purple beam of light was immediately released, extending for two or three meters before slightly dispersing.

"This is a laser sword. The beam consists of ultraviolet rays, infrared rays... as well as gamma rays and X-rays. By pressing a button, it can release these as a high-energy beam, which is then constrained by a magnetic field to form the shape of a sword. The intensity of the light can be adjusted here when in use..."

"However, this beam of light can damage human skin, so you need to wear goggles and gloves, and you have to be careful not to hit other people... If it's you, Xiaoguang, it will definitely be fine to use it."

"Um……"

Uchiha Hikaru watched Bulma demonstrate the various lightsabers, then pondered for a moment: "Did you pay the Jedi Order the royalties?"

"what?"

Under Bulma's questioning gaze, Uchiha Hikaru didn't explain much. He walked over, took a lightsaber, and tried swinging it a few times: "These beams... are they intangible?"

"Of course, it's just light, how could it have a physical form..." Bulma said matter-of-factly.

Also.

Whether it's a laser or a ray, they are essentially just electromagnetic waves. When they come into contact with each other, they pass directly through each other and don't make a crackling sound like a fluorescent light tube.

"However, what you described, Hikaru, is theoretically possible."

Bulma stroked her chin thoughtfully: "If we replace the laser with ultra-high-density plasma, and use a powerful confining magnetic field to control their shape, it's indeed possible to cut objects like a real sword... However, plasma particles lose energy immediately upon colliding with neutral air. We must solve this problem to allow the lightsaber to maintain its shape for a long time..."

While Uchiha Hikaru was completely bewildered, Bulma had already abandoned the idea and moved on to the next workstation.

"And this too."

"This is a UV protection suit. It's heavier than a regular jacket. Once you put it on, just press this switch, and it will instantly generate intense sunlight, providing 360-degree all-around illumination around your body, as bright as day. Without trees or buildings to block the light, it can cover an area of ​​about 200 meters, and the energy can last for about two to three hours..."

"...So you mean the Solar Flare?"

Uchiha Hikaru couldn't help but complain again.

And Bulma continued:

"However, after hearing what you and Tanjiro said last time, I wasn't quite sure if this thing would work, so just to be on the safe side, I invented something new. Ta-da! This is it!"

"I named it the 'Mini Bracelet.' Simply wear it on your wrist, press this button, and your whole body will shrink to the size of your index finger, then you can hide in your pocket."

As she spoke, Bulma gave a live demonstration. With the button pressed, her body shrank to only a few centimeters in size at a speed visible to the naked eye, and she waved her hand while standing under Uchiha Hikaru's feet.

"...6"

Hikaru Uchiha admitted that he did not understand science.

However, in her mind, the idea of ​​shrinking a person to the size of an index finger in an instant is far more incredible than laser swords or plasma. But judging from Bulma's tone, the invention process of this thing seems to have been much smoother than the previous two... Considering that there are magical things like capsules in the Dragon Ball world, the principle of changing size at will may not be that complicated.

only……

(This tech tree is seriously off-track...)

Moreover, even counting from the time she found the Dragon Balls last time, Bulma only had a maximum of two months to invent anything, during which time she would have to go to school... This inventing efficiency is really absurd.

"Any other new inventions, Doraemon?"

Hikaru Uchiha blinked, looking at Bulma expectantly.

Under her gaze, Bulma scratched her head a little embarrassedly: "No... Actually, there is another plan that is being improved, which is a laser sword in the form of a gun, tentatively named 'High Energy Particle Gun'. However, that has only just been prototyped, and there are still many technical problems that have not been solved, so I won't show it to Hikaru this time."

"..."

There really are...

Uchiha Hikaru was speechless.

She had previously thought that even if Bulma, a 16-year-old girl, was incredibly talented, her abilities would be limited. In the original storyline, her inventions of spaceships and time machines took place almost ten years later. But now it seemed... she had underestimated the value of the word "genius."

"Limited level" only refers to her ability to compare with top scientists of the older generation like Dr. Brief and Dr. Gro, but compared with ordinary researchers, Bulma is far superior.

(Looks like I can find some time to talk to Bulma about the idea of ​​a "gravity training room" and get this training method working ahead of schedule...)

Uchiha Hikaru chatted with Bulma for a while longer, and after verbally agreeing on the departure date to the Demon Slayer world, he got up to say goodbye.

Then they flew all the way to the holy land of Kalin, climbed the tower, and visited the cat sage.

I can tell.

The Cat Sage was somewhat pleased with the arrival of Uchiha Hikaru.

After all, Korin Tower was isolated from the world, and the gods rarely descended. Only this lonely old cat spent its days there, with no one to talk to, passing the time by observing the mortal realm. It grew quite lonely after a while. Uchiha Hikaru had anticipated this, so the Cat Sage brought a large number of gifts—

A bunch of comic books, novels, CDs, and two DVD players.

"What is this? Is it an invention of the human world?"

"Yes, it's something that can help you pass the time."

Unfortunately, the entertainment industry in the Dragon Ball and Naruto worlds isn't very developed. If we could bring over those entertainment products from Earth in the 21st century, Master Koko wouldn't have to worry about having nothing to do for the next few decades.

After giving the Cat Sage a brief lesson on how to use the DVD player and demonstrating it himself, Uchiha Hikaru raised the questions he had encountered while training his "ki" recently and asked the Cat Sage for advice.

That evening, Uchiha Hikaru cooked a meal using the kitchen utensils he had left behind and stayed at the tower.

They stayed there for three or four days.

She was just about to leave when she was about to go back.

This time, Hikaru Uchiha did not ask for Senzu Beans again.

After all, she had already brought back a large bag when she went back last time. Although there were many Senzu Beans at this time, enough to fill several jars, and Master Korin himself didn't care much about Senzu Beans, she couldn't ask for them too frequently, otherwise it would annoy people.

As long as you visit from time to time and cultivate a good relationship, you can easily take away several jars of them later and achieve true freedom in obtaining Immortal Beans.

—It's better for her to take it than for Yajirobei to eat it all up in the future.

And that celestial being in the temple, one would most likely only have a chance to meet him through the introduction of the cat sage...

but.

Although Uchiha Hikari didn't speak, the Cat Sage suddenly called out to her as she was leaving.

"What's wrong, Master?"

"...This fairy cat never agreed to be your master."

The Cat Sage first denied the name Uchiha Hikaru, then said, "Didn't you say last time that you wanted me to give you a Flying Nimbus? Actually, besides the golden Flying Nimbus, there's also a black one. This Flying Nimbus doesn't require a pure heart; even people with evil hearts can ride it. If you don't mind how ugly it is, you can take one back with you."

As if to prove his point, the cat sage raised his cane and waved it, and soon a dark purple cloud flew in from the sky and landed inside Korin Tower.

"Huh?"

Uchiha Hikaru examined the Flying Nimbus for a moment, a vague thought forming in his mind. He asked somewhat awkwardly, "Master, you're not planning to throw me off halfway through the flight, are you?"

(End of this chapter)