Naruto The Thunder Calamity

"The first choice is to undergo the experiment while awake. The downside is that it will be very painful, but the upside is that your willpower will affect the success rate of the experiment."

"I choose the first one!"

Before Raijin finished speaking, Sugisaki Koichi made his choice.

Sugisaki Koichi looked at Uchiha Raijin and continued.

"Raijin-sama, although I'm just a Genin, I believe my willpower is strong enough."

Sugisaki Koichi's face was confident. Since entering the ninja school, he didn't think anyone worked harder than him. The only thing that set him apart from others was talent.

"Ah... is that so?"

Raijin chuckled softly and didn't try to persuade Sugisaki Koichi otherwise.

Next, natural energy will be guided by me into your dantian, which is here.

Raijin pointed three inches below Sugisaki Koichi's navel.

After countless experiments, Raijin found this to be the best place to store natural energy.

"The pain will be similar to this."

Raijin flipped his hand, and a senbon appeared in his hand.

He slowly moved it towards Sugisaki Koichi's tenketsu.

The speed was very slow, about the same as the natural energy entering Sugisaki Koichi's body.

As the senbon approached, Sugisaki Koichi instinctively moved back.

"Don't move."

With Raijin's command, Sugisaki Koichi's body froze.

"Ugh~"

As the senbon slowly pierced Sugisaki Koichi's tenketsu, the veins on his forehead bulged instantly.

"Ah!!!"

As Raijin lightly twisted the needle, Sugisaki Koichi screamed in pain and immediately stood up, moving away from Raijin.

Raijin looked at the hunched-over Sugisaki Koichi, who was clutching his lower abdomen, and blinked.

"The second option is to lose consciousness and sleep. It will basically be over, but you might not wake up."

"I choose the second option."

Sugisaki Koichi pursed his lips and quietly said to Raijin.

As he finished speaking, Sugisaki Koichi felt his face burning.

Raijin nodded and turned to Tsunade.

Tsunade sighed and shook her head with a bitter smile. She stepped forward and gave Sugisaki Koichi a pill.

As Sugisaki Koichi lost consciousness, Raijin began his work.

The principle of Permanent Senjutsu is actually very simple. It involves guiding natural energy into the tenketsu for storage and then running it according to the tenketsu diagram drawn by Tsunade.

Natural energy in motion attracts more natural energy from the surroundings.

During this process, it also strengthens the meridians it flows through.

This strengthening has no limit.

Or rather, the limit is very high, and Raijin hasn't reached it yet.

Raijin gently placed two fingers on Sugisaki Koichi's tenketsu and slowly closed his eyes.

With Raijin's guidance, natural energy began to gather in Sugisaki Koichi's tenketsu.

The invisible natural energy started to seep into Sugisaki Koichi's body.

Tsunade watched Sugisaki Koichi's reaction closely.

The first time natural energy enters the tenketsu, it is very painful.

This suggests that there might be something in the acupoints, and the natural energy pushes it out.

Raijin called this impurity.

In successful cases with monkeys, the thick layer of black substance on their skin didn't look like anything good.

And it smelled terrible.

Under Raijin's control, the natural energy flowed smoothly through Sugisaki Koichi's body, and the black impurities were slowly expelled.

In his previous life, Raijin had tried needle cleaning at a beauty salon.

It was very painful.

A tall man twisted like a worm under the fine needle.

And what was cleaned out were just blackheads or pimples.

Now, this internal cleansing of impurities was many times more painful.

To put it simply, the tenketsu are much more delicate than the face, so the pain is much greater.

Natural energy flowed slowly through the meridians, and where there was severe blockage, it needed to be gradually cleared.

After all, tenketsu are very delicate.

A slight mistake could break them.

If an unimportant part breaks, it might be okay. But if a vital part breaks, the person could die.

Time passed slowly, and sweat began to appear on Raijin's forehead.

This work was really exhausting...

As the last acupoint was cleared, the natural energy completed a full cycle in Sugisaki Koichi's body and returned to his dantian.

"Phew~"

Raijin slowly exhaled and looked at the black substance on his fingertip.

"Here."

At that moment, Orochimaru handed over a warm, wet towel.

"Did it work?" Orochimaru asked Raijin.

"Yes, it worked."

Raijin nodded. Actually, it wasn't just Sugisaki Koichi who was nervous, Raijin was also quite tense.

After all, this was Raijin's first time conducting such an experiment on a living person.

Humans and animals are different, not just in terms of acupuncture points, but also because there are several points on the human body that must not be touched.

These points correspond to the Eight Gates in the Eight Inner Gates technique.

To be honest, breaking through these points with natural energy isn't difficult. Raijin could help Sugisaki Koichi break through these points directly.

After breaking through, one would indeed gain a huge amount of chakra out of nowhere.

But if you use natural energy to break through, you can't close them again.

If you break through all at once, you can refer to Might Duy who opened the Death Gate.

Might Duy could live as long as Sugisaki Koichi could live after opening the Death Gate.

After all, how much improvement can natural energy bring to the body after completing a cycle?

Stronger than before, but only a little bit.

"Sigh..."

Looking at Sugisaki Koichi lying on the ground, Raijin sighed helplessly, a hint of envy flashing in his eyes.

(End of chapter)

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