Konoha, was reported by the Fourth Hokage at the beginning

Chapter 98 Illusion - Perception Deprivation

What is the principle of illusion?

By integrating the genjutsu chakra into other people's bodies, it flows to other people's brains and then affects the brain, making the enemy fall into genjutsu.

Essentially, it uses illusion chakra to input untrue information into other people's brains or induce others to input untrue information, thus confusing the brain's cognition, and then confusing the physical perception transmitted from the brain.

The key here lies in the input and output of information.

The input of information allows the illusion to invade.

The output of information makes all perceptions of people in the illusion real.

It can be said that most illusions, whether visual, tactile or auditory illusions, start from the input and output of information.

The same goes for the Dark Arts.

However, the art of Darkness is different from other illusions.

Other illusions deprive people of sight by inputting information into the brain, causing the brain to react with the information "invisible".

The main affected object is the brain.

Not so with the Dark Art. Li Yao clearly felt that the Chakra of the Dark Art stayed in the eyes, and it directly cut off the nerve paths that transmit all the light signals received by the eyes back to the brain.

Cut off in a physical sense.

Now the eyes of the two wandering ninjas are actually good and they can see anything.

But because the signals of objects seen by the eyes cannot be transmitted to the brain, the signal sent by their brains is darkness, and their vision is also darkness.

This is the principle of the Dark Art. Compared with other illusions that disrupt the brain's perception, it is simple and crude, but very effective.

Li Yao compared the disruption of the brain caused by illusion chakra to ordinary people. This simple and crude illusion that directly cuts off the signal transmission path of a certain organ seems to be more difficult to eliminate.

Thinking of this, Li Yao took the initiative to remove the black iron chains from the bodies of the two ninjas who had been infected by the Dark Art.

After the two people's chakra flow resumed, he took the initiative to help them disrupt the flow of chakra in their bodies.

"It's useless!!!"

Despite his expectations, Li Yao was still surprised by the power of the Dark Art, or rather, he was amazed by the genius idea of ​​the Second Hokage Tobirama.

I can only say that he is worthy of being a man who has been targeting Uchiha his whole life.

Strictly speaking, the art of Darkness is not an illusion at all, it is just a kind of nerve signal cutting technique that is performed by using the special characteristics of the illusion chakra.

No wonder people who have been hit by the Dark Arts are unable to see except with their eyes, and have all other senses, and can also use various ninjutsu.

It turns out that this is the principle.

The Second Hokage was also quite shady. It was obviously not an illusion, but he took an illusion - the art of darkness.

Enemies who don't know why, thinking that someone has been infected by the Dark Arts, use illusions to remove it, but they find that they can't remove it, so they must be very disappointed.

Especially for the Uchiha clan who are very good at dispelling illusions.

The art of darkness is their nightmare.

No matter how strong the Uchiha clan ninja is, if they don't understand the principles of the Dark Walk, they will not be able to remove the Dark Walk.

To dispel the Darkness Art, you only need to know the exact location where the Darkness Art Chakra acts around the eyes, and then accurately input the chakra to disrupt this part of the Darkness Art Chakra, and you can dispel the Darkness Art.

It sounds simple, but there are not many people who can sense the chakra of illusions so accurately, especially the chakra of dark arts, which is more illusory and hidden and difficult to detect. This is why the arts of dark arts have always been called illusions.

In fact... it can indeed be called an illusion, but it's just different from most illusions in principle.

However, the principles of the Dark Art inspired Li Yao.

With a thought, Li Yao controlled the chakra of the dark art to wrap the brains of the two wandering ninjas.

<divclass="contentadv">In perception, the transmission paths of external signals flowing into the brain are very small, so small that Li Yao seems to see the smallest energy unit of chakra, like light rays connected by photons, all over the brain Densely packed on top.

It is not that difficult to use the dark art chakra to accurately cut off such a dense signal transmission path.

Fortunately, Li Yao's absolute control over chakra allowed him to do it.

With a thought, Li Yao used the method of darkness to cut off the signal transmission in the eyes, accurately cutting off all signal paths input to the brain.

For a moment, the brains of the two wandering ninjas seemed to be imprisoned in a sphere. They could not receive signals from the sensory cells of the body. They seemed to be in a vegetative state. The struggling bodies suddenly became quiet. ,like a statue.

But soon, only a third of a second later, the two began to struggle fiercely again, shouting for mercy.

"This is……"

Li Yao suddenly frowned. The dark art chakra that had just imprisoned the brains of the two ninjas was broken by the instinctive chakra explosion of the two.

Illusion chakra blends into other people's chakra in order to invade without being noticed. It is illusory and soft like water, and can be broken with a poke.

This is also the reason why people who are under the illusion can dispel the illusion as long as they disrupt their own chakra.

Li Yao discovered a weakness in the Dark Art.

Because it was not due to illusion, the Chakra of the Dark Art forcibly cut off the reception of all signals by the brains of the two ninjas. Although the bodies of the two ninjas entered a vegetative state, their brains were awake and they could also make some reactions relying on their brain consciousness.

They just controlled the chakra on the brain to explode, thereby dissipating the dark art chakra, thus dispelling the dark art in the brain.

However... the price seems a bit serious!

Looking at the two wandering ninjas who struggled violently for a few times, foamed at the mouth, rolled their eyes, and finally became completely unable to move.

Li Yao relaxed his brows and smiled slightly.

Although the two of them had released the signal blockade on the brain by the chakra of the Dark Art, they would also be affected by the sudden burst of chakra in such a fragile part of the brain.

This impact is not light.

Now the two wandering ninjas were turned into idiot vegetative states by their own chakra burst.

"This ninjutsu still has some value."

Li Yao suddenly raised the corner of his mouth slightly. Especially for ninjas with poor chakra control, once they are hit by the dark art that cuts off the signal transmission in the brain, they will be like the two wandering ninjas now. Even if the darkness is lifted Even if you use this technique, your chakra burst will damage your brain and turn you into an idiotic vegetative state due to poor control of the chakra burst.

Even a ninja with fine chakra control would need a certain amount of time to carefully release the dark art chakra shrouded in the brain.

And this time is enough for Li Yao to kill the enemy.

It can be said that Li Yao developed a trump card ninjutsu with the help of the Dark Walk, a ninjutsu that could kill him with one strike at a critical moment.

Then the problem is coming.

Such a good dark line derived ninjutsu...why didn't the Second Hokage stay?

Doubts flashed through Li Yao's mind, and then he frowned slightly. The original work did not mention the use of the Dark Art, but that doesn't mean it doesn't exist. Maybe someone in Konoha knows it?

"Fortunately, I am very sensitive to chakra, and the consciousness that is integrated into chakra also rejects all alien chakras that try to invade."

"So... don't worry too much."

"So...what should I call it?"

Li Yao tilted his head slightly. It was obviously not appropriate to call this ninjutsu that targets the brain the art of darkness.

"Since the effect is to turn people into a vegetative state, let's call it... illusion - sensory deprivation."

Li Yao smiled and followed the Second Hokage's trick and gave this ninjutsu an illusion name.