Once it comes to the precise control at the neural network level, the difficulty increases exponentially, which not only includes the requirements for the accuracy of chakra control, but also requires the user to have enough for the human body. It should be a deep understanding.

Other words.

Only when you have reached a certain level in the field of medical ninjutsu can you have the conditions to cultivate the 'Twelve Palaces'!

"Sure enough, everything needs knowledge!"

Shinji complained.

At this time, he deeply understood why ninjas like Tsunade and Shennong, who had extremely high medical ninjutsu attainments, were also strong in physical skills. Because only when we have a deep understanding of the structure of the human body, can we know how to better exert the potential of the human body.

Thinking of this, Shinji snapped his fingers and dismissed 'Takamagahara'.

After exiting Takamagahara, Shinji glanced at the clock hanging on the wall, less than five minutes had passed, and he and Nameless had been in Takamagahara for more than an hour.

After getting used to the speed of time a little, Shinji got up and said to Nameless, "You wait first, I'll go to the hospital to check the information!"

Nameless nodded, "Understood!"

After an explanation, Shinji came to Konoha Hospital.

In the hospital archives, he found all the books on the nervous system, as well as cases involving the nervous system, and began to study.

Undoubtedly.

In the ninja world with chakra, the nervous system of the human body is not as mysterious as Shinji imagined, on the contrary, many ninjas have noticed it and conducted a lot of research on it.

According to numerous studies, proper stimulation of the nervous system can increase the activity of the brain and put the body into a state of excitement, thereby improving the response and strength of the muscles in an all-round way.

For this reason, the medical class has even developed several agents specifically designed to stimulate nerves.

Looking at this research report, Shinji grinned.

In these studies, all the areas of the nervous system that are most susceptible to irritation have been identified, and Shinji only needs to do the opposite and bypass these areas to avoid the overstimulation of the nervous system by the 'zodiac).

"Konoha is really full of treasures!"

Shinji chuckled as he sorted out the information he needed. He thought it would take at least a few weeks, if not months, to make improvements. didn't think about it, only one trip to the hospital archives solved 80% of the problem for him.

As the largest ninja village in the ninja world, Konoha is not only the strongest, but also the information and data accumulated over the decades are also extremely rich, and there are many materials that take countless efforts to get outside, and you only need to use your hands in Konoha to do it.

Returning to the police building, Shinji called Nameless, and the two of them came to the training ground dedicated to the Konoha Police Force together.

Because it is related to the improvement of the 'zodiac', it is the safest and most reliable to carry out in reality.

Directly pulled up the nameless right hand, Shinji pinched it, and swiped up from the side of his palm: "Do you feel a slight itch?"

"Hmm!"

Nameless blushed and nodded.

Shinji didn't notice the inexplicable flush on Nameless's face, and still focused on Nameless's right hand: "This is the area with the densest nerves in the hand, and when using the 'Zodiac' stimulation, if you can avoid stimulating this small area, you may be able to solve the problem of the 'Zodiac'."

Nameless whispered, "Oh."

Shinji continued, "Your control over the chakra is above mine, so I need you to test it out for me. In this way, you stimulate your left hand with the original 'zodiac signs' and your right hand with the method I just told you to see if there is a difference."

With that, Shinji let go of Nameless' right hand.

Seeing that Nameless was still stunned, he urged, "You can start!"

"Oooh!"

Nameless hurriedly began to try.

It's not easy to launch the 'Zodiac', and it needs to be treated differently, while using the original version in the left hand, and the improved version in the right hand on the other, which is so demanding for the user that it can almost filter out 99.99% of the ninjas in the ninja world.

Thankfully, Nameless is an exception!

After only seventeen or eighteen failures, she mastered the rhythm and played the original version of the "Zodiac" with her left hand and the first version of the "Zodiac" with her right hand.

And by the time Nameless started trying, Shinji had already launched his 'Six Hook Jade Reincarnation Eyes' with all his might."

Little by little, time passed.

In the first few minutes, the activity of the left hand is slightly stronger, but the difference is not large, and the right hand also maintains a very high level of activity. When the time reaches fifteen minutes, the activity level of both hands is basically the same.

After more than thirty minutes, things started to look different, and the activity of Nameless' left hand began to decline continuously, while the activity of his right hand remained the same.

When forty-five minutes had passed, Nameless began to frown slightly.

Shinji asked, "What's wrong?"

Nameless replied, "I feel a little paralyzed in my left hand!"

Shinji bowed his head slightly, "Alright, you can stop!"

If this slight paralysis occurs throughout the body, it is generally difficult for people in a state of fatigue to notice.

But if there is a contrast, this slight paralysis is highlighted.

After verifying the feasibility of the improved method through actual exercises, the follow-up only needs to be carefully selected in the details.

Looking at Shinji with a smile on his face, Nameless asked, "Shinji, is it true that the 'Zodiac' will be perfect after the improvement?"

Shinji shook his head and smiled, "How is that possible!"

Nameless was a little puzzled: "Could it be that there is still a problem with the 'Zodiac'?"

"Maybe there is, maybe not!" After a pause, Shinji shook his head: "There is a high probability that there should still be a problem, but we haven't found it for the time being!"

There is room for improvement, improvement in any technique.

Even the star-level techniques of 'Filthy Earth Reincarnation' and 'Spiral Pill' are constantly being improved by future generations.

Therefore, Shinji did not dare to say that the 'Zodiac) developed by himself was really perfect.

This is also the reason why he has not promoted the 'Zodiac' on a large scale for the time being, the difficulty of cultivation is on the one hand, and on the other hand, he is worried that there are serious hidden dangers in the 'Zodiac'.

Just like this time, if it weren't for Nameless's extremely high chakra control ability, Shinji would probably never have been able to discover the hidden dangers of the 'Zodiac'.

Once the days go by, he, and the dragon tongue that has cultivated the 'Zodiac' with him, it is very likely that one day Chino will completely collapse due to the nervous system, causing his body to suddenly become paralyzed and permanently incapacitated.

However, this incident also made Shinji realize that maybe more people can join the cultivation of the 'Zodiac' in order to better discover the possible problems of the 'Zodiac'...

Free to read.