On the morning of Tuyao Day (Saturday), the forest is a mixture of light yellow, light red, and dark green, with mottled colors and a somewhat chaotic feeling.

When Aoyagi arrived at the training ground, Araki had already arrived.

"I have basically taught you everything related to concealment and detection, and the rest needs to be constantly applied and realized by yourself in order to truly digest them into your own things. In addition, physical fitness and other foundations will also affect your ability, and in this regard, as long as you continue to practice, it will naturally feed back into your detection and concealment ability. ”

Araki sighed: "Your reconnaissance talent is relatively average, your eyesight and hearing are not outstanding, and you don't have any special reconnaissance skills, so it is difficult to achieve success in reconnaissance." Luckily, you have a good grasp of trace detection, which can be regarded as making up for some of the disadvantages. It's just that trace detection is not as good as people with special skills after all. You are still relatively sensitive to the perception of chakra, and you can exercise it if you have the opportunity, but it is difficult to achieve anything without the relevant secret tradition. ”

Ninjas can generally sense chakra fluctuations, with the difference being in the size of the range and the level of detail. Some people are able to distinguish the difference in chakra in each person, while others are able to detect chakra fluctuations within a radius of ten kilometers. Some rely on talent, others rely on secret transmission.

"In terms of concealment, you can control yourself quite well, you have approached the level of silent action, and you have learned body concealment well, and the level of odor elimination, camouflage, etc. is up to standard. You're gifted in this area. Araki raised his hands, "Finally, I'll teach you one more ninjutsu." ”

Looking at his right hand, Araki's face was a little gloomy, although it had been several years, he still couldn't let go.

During a mission, his right hand was severely wounded, and after treatment, he still couldn't fully recover, so he could only barely use his strength, let alone pick up the kunai to fight, even if it was very difficult to seal, and his speed dropped a lot. Since then, he has withdrawn from the battle sequence, and by chance, he came to the ninja school to become a teacher.

Araki slowly seals:

Hai - 酉 - 戌 - Hai - 酉 - 戌; Ninja - the art of concealment

In Aoyagi's perception, Araki's breath disappeared, as if he had merged into the forest. Although the eyes could still see, they could not feel the chakra fluctuations, nor could they hear Araki's breathing. Aoyagi's current three main methods of investigation: chakra perception and sight and hearing, there are two that directly do not work on Araki, and if Araki hides in the dense forest, it is almost impossible for Aoyagi to find him.

Araki opened his mouth to say a word, but Aoyagi couldn't hear it at all. Does it seem that all the sounds made by the body have been eliminated? This ninjutsu is very good.

Unraveling the ninjutsu, Araki said, "You should also feel the effect of this ninjutsu, it can hide your chakra fluctuations and sounds, as long as you hide well, it will be difficult for the enemy to find you." ”

"When sealing, you need to imagine in your mind that your voice and chakra fluctuations converge together, weaken and then disappear to guide the formation of ninjutsu. And when sealing, like other ninjutsu, it will naturally induce the flow of chakra, so you don't have to control it. ”

"Yes!"

"You unleash a ninjutsu."

Aoyagi seal, ninja - the art of concealment. It's a strange feeling, feeling like your breath is being withdrawn and concentrated, and then quickly weakening and disappearing.

Trying to say something, Aoyagi found that he couldn't hear himself anymore. It's amazing.

"Very good." Araki nodded with satisfaction, "Untie the ninjutsu, everything that should be taught to you is finished, and you will practice on your own in the future." ”

Untying the ninjutsu, Aoyagi bowed and said, "Thank you very much for Mr. Araki's teaching in the past few years!" ”

Araki was saluted, silenced for a while, and said, "Your ability to achieve something in concealment and reconnaissance is the best reward for me." ”

…………

The structure of the Concealment Art is also quite simple, and Aoyagi is looking through the materials of the handprint in the mental space, while deliberating on its meaning.

It is a repetition of two hai-unitary-戌. Well, the meanings of these three mudras are:

Hai, refers to the core, all things are collected, all are solid core, can refer to the plant bears seeds, can also be understood as the vitality of the plant converged in the seed.

Unitary, refers to the maturity of all things, and can also refer to the aging of all things.

戌, refers to the extinction, the destruction of all things, the return to the earth, that is to say, the death of all things, the disappearance.

Combining the effects of ninjutsu and the meaning of the three mudras, this ninjutsu should look like this:

Personify yourself into a seed, and then decay and disappear, naturally losing your breath, and two times Hai-You-戌 is to enhance the effect.

In other words, this ninjutsu is to converge the breath on the body, gather it together (similar to forming a seed), and then weaken it so that it disappears, because to make the chakra fluctuations and sounds disappear, the structure of Hai-酉-戌 is repeated twice.

If it is the second case, then adding the structure of Hai-You-Xu, and using spiritual guidance, will it be possible to make the other breaths disappear? Like the smell, and the figure?

There was no way to verify it in the spiritual space, so Aoyagi put this matter aside for the time being and moved on to other practices and studies.

………………

The next morning, Aoyagi stood in the courtyard, calming down and concentrating on the seal, three consecutive hai-you-xu while trying to imagine the chakra fluctuations, sounds and smells disappearing.

The ninjutsu release was successful, but Aoyagi had not strengthened his sense of smell, and he couldn't feel whether the smell on his body had been eliminated, so he couldn't be sure whether it was successful or not.

In that case, let's try to hide your figure.

Three times in a row, imagining his chakra fluctuations, voice, and body disappear. As soon as the ninjutsu was released, Aoyagi walked to the edge of the pond and squatted down, looking at the reflection in the water.

There is no reflection of oneself visible on the water, only a shadow of one's own silhouette.

Walking back into the house, Aoyagi looked at himself in the mirror, a black humanoid object.

Touching his chin, Aoyagi thought. The light that should be reflected is completely absorbed, so it looks like a black mass, which doesn't seem to hide the body well, so a black object, but it's more eye-catching, right? If it's in the dark, it's a good way to hide yourself.

Since this ninjutsu can eliminate light, chakra fluctuations, and sounds, then there should be no problem with the smell, and next time find a dog to confirm if it can eliminate its own smell.

In general, this modification of ninjutsu is relatively successful, figuring out the mode of action and principle of this ninjutsu, relying on the principle, increasing the type of breath eliminated by this ninjutsu, and getting a ninjutsu that can eliminate all kinds of breath in a lightless environment, and achieve complete concealment.