Pupet Master in Konoha

The next afternoon, in the attic of the orphanage.

Hideki walked to the window and pulled the thick black curtains, making the attic dim.

Then he walked over to a strange machine and pressed the switch on it.

With a snap, the machine cast a curtain of light onto the wall not far away, and at the same time, the sound of gears turning began to be heard from within.

Soon, images of activities gradually appeared on the wall. It seemed to be a scene of Mighty Dai leading the children of the orphanage in radio gymnastics.

It looked like just an ordinary everyday clip, even a bit eye-catching because everyone was wearing strange tights.

But if anyone from the film industry saw this, they would definitely be shocked, and it might even cause a major earthquake in the industry.

Because what was being projected on the wall was not the black-and-white image they were accustomed to.

The sky was blue, the grass was green, and the children's faces were rosy white. They all had the bright colors they should have.

Even the tights everyone was wearing were green, exuding a youthful vibe.

Yes, in just one day, Hideki single-handedly pushed the film industry from the black-and-white era to the color era.

If there are specialized film courses in the future, every time students learn about this period of history, they will probably have to watch Dai wearing this eye-catching gymnastics...

But surprisingly, Hideki did not show any joy about this. Instead, he frowned, as if he was not satisfied with the effect of the film.

Indeed, for Hideki, who was used to watching 4K high-definition uncensored movies in his previous life, the so-called color images with blurred colors and distorted pictures in front of him were really hard to accept.

But this was actually within Hideki's expectations.

To save time, he didn't actually develop the photography and projection equipment from scratch. Instead, he bought them from the black market and modified them.

He also used the simplest and most brutal method to achieve color images.

The reason people can see the colorful world is that there are three types of cone cells on the retina of the eye, which perceive the three color wavelengths of light: RGB—red, green, and blue.

The films used in movies today are still very primitive, and the photosensitive coating can only record black-and-white light and dark changes, so the images projected are also in black and white.

So, Hideki decided to use optical parts such as prisms to record the images captured by the camera on three rolls of film at the same time.

Then he placed a red, green, and blue filter in front of the film so that each roll would only record one primary color of light.

When showing the film, you only need to project the corresponding primary color light sources and then overlap the images through a prism to restore the colorful images.

Well, in theory...

However, since the steps are somewhat complicated, the small defects in the machine, filters, prisms, and films would be compounded and amplified, leading to distortion and blurring of the image.

Although this was enough to impress the people in the ninja world who had never seen anything like it.

But Hideki, who was a bit of a perfectionist, felt embarrassed.

"Can't we just take shortcuts and go with color film like the movies in my past life?"

Hideki began to ponder but quickly shook his head.

Although color film might seem ordinary, it was actually a high-tech product and a reflection of a country's industrial capabilities in photosensitive materials.

The various chemical additives needed for color film's photosensitive coating were not something Hideki could think of off the top of his head; they required a lot of research and development.

"If I had this much time, I might as well study more about programming flow sealing techniques and jump straight into the digital film era."

And that's exactly what Hideki did.

After all, the school's preparatory work would take a few more days, so Hideki decided to challenge himself to see if he could come up with a satisfactory result before then.

If it didn't work, he'd just make do with the newly modified machine.

Hideki closed the doors and windows, checked through his perception that there were no issues, and began brainstorming for inspiration...

A few minutes later...

"Eureka!!"

Shouts of surprise echoed in the attic.

Although he was sitting cross-legged on the carpet, pale and drained, his eyes were shining with joy.

"I'm really stupid, really."

Hideki sighed first.

"They abandoned the previous method of combining technology and ninjutsu for speed, but ended up taking a long detour."

"Why didn't I think of this sooner? There's actually a very similar technique in the ninja world!"

The art of telescope.

Isn't this ninjutsu that the Third Hokage often uses to protect Konoha's bathhouse a combination of camera and projection? And it's a live broadcast...

At the same time, Hideki began to deduce the general principle of this technique.

The key point was its positioning function.

Judging by the fact that this technique only required knowing the chakra characteristics of the target to monitor them from a distance, it was clear that the principle of perception ninjutsu was involved.

Naturally, Hideki speculated that the "photography" function of this technique also relied on perception.

After all, he had strong chakra control and had developed a technique to detect the various physical properties of materials using chakra.

This technique likely also used chakra to record optical information around the target.

The chakra then carried this information back to the caster and displayed it in the crystal ball.

In fact, this was very similar to the technique passed down by the Yamanaka clan, which allowed them to share their perception of the environment.

Thus, the mystery of the telescope technique had mostly been solved.

Another question was how it achieved such an incredible surveillance range covering all of Konoha.

Although the giant toad sage of Myōboku Mountain had also used crystal balls for long-distance monitoring, Hideki didn't think the Third Hokage would use up an enormous amount of chakra for this technique.

Since it was essentially perception ninjutsu, Hideki quickly thought of the early warning barrier that covered the village.

This barrier, maintained by the barrier team ninjas 24/7, identified chakra signatures within Konoha using a sensing magic circle. Any unregistered chakra signature or powerful chakra fluctuation would be immediately detected and reported to the Anbu for action.

Hideki guessed that the Third Hokage must have used his authority to leverage this barrier, allowing him to monitor the entire village with the telescope technique.

It wasn't difficult to see that if this technique were slightly improved and integrated with a mechanism to store images using runes, it could be used as a camera and projector with remarkable results.

Hideki estimated that with his chakra control ability, combined with the brainstorming technique, he could develop this technique in about a month.

However, there was one small problem.

Hideki had no intention of being a cameraman on set every day.

To turn it into a rune machine anyone could use, this ninjutsu would need to be fully converted into a rune ritual.

With his current abilities, it would likely take some hard work to achieve this.

To save time, Hideki began to think about how to ask the Third Hokage for the telescope technique...

After all, the Third Hokage had already used it by photographing through the perception barrier and projecting the image through the crystal ball. This had already implemented at least the key functions, which would save Hideki a lot of effort.

The real issue was how to explain that he knew about the telescope technique...

It was easy to figure out that the Third Hokage would definitely not publicize a ninjutsu capable of monitoring all of Konoha at any time.

He probably wouldn't even want most of the barrier ninjas to know about such a remarkable use of the barrier.

If Hideki accidentally let slip any information he shouldn't know, it could ruin the trust he had built with the Third Hokage over the past few months.

Although his head still felt a bit dizzy from the brainstorming technique, Hideki began thinking about how to deceive the Hokage...

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