Naruto: Can't learn ninjutsu? I'll just practice immortality!

Continuing to go deeper into the seabed, Asakawa Naoki's mana shield was compressed to the point of collapse, forcing him to take out a four-pattern blue talisman from his storage bag.

The four-pattern water-repellent talisman not only isolates water pressure, but also gives ordinary people the ability to breathe underwater.

When the mana shield was broken, the water-repellent talisman emitted a faint blue light, helping him resist most of the water pressure.

But even the remaining water pressure is enough to crush ordinary ninjas into meat paste.

Fortunately, Asakawa Naoki's physical body has broken through the innate for some time, and his physical strength is far beyond that of ordinary ninjas, so this water pressure is still within his tolerance range.

With the help of the water-repellent talisman, Asakawa Naoki continued to dive.

After diving another two thousand meters, even with the help of the water-repellent talisman, he felt some pressure with his physical body that had just entered the innate.

"But we are getting close."

"Is it my illusion that the natural energy in the seawater is more concentrated than that on land?"

When he reached the bottom of the sea three thousand meters deep, he could already clearly sense that the temperature of the surrounding seawater was much higher than that of ordinary seawater at the sea level.

It was spring in the Rain Country now, and the temperature was not high. The seawater on the sea surface was about ten degrees.

At the depth he had reached, the temperature of the seawater was as high as seventy or eighty degrees. If he went deeper, he would probably be roasted. No wonder there were no fish around.

"I am afraid that those rain ninjas who came to investigate also measured the abnormal temperature and evaporation of this area of ​​water by some method, so they speculated about the submarine volcano."

Asakawa Naoki thought, if it were not for this strange pressure, he would probably think it was because of the submarine volcano.

Continuing to move forward, without the protection of the mana shield, Asakawa Naoki quickly moved deeper into the seabed like a fish.

Even with the help of the water-repellent talisman to resist most of the pressure, his body felt a little uncomfortable.

"Go one thousand meters deeper. If we still can't find the cause, we can only leave first."

After all, this is just a test of the "land reclamation" operation.

Because the action was sudden, Asakawa Naoki's preparations were still not sufficient, and he only had the water-repelling talisman as a protective measure.

If it doesn't work this time, next time Asakawa Naoki will either wait for a breakthrough in his physical strength or refine a water-controlling magic weapon, and one day he will be able to find out the situation in this sea area.

Continuing to go deeper, Asakawa Naoki came to a depth of 5,000 meters under the sea, which has reached the limit.

The sea water temperature here has reached hundreds of degrees, but because it is located in the deep sea, the sea water cannot boil.

Of course, this temperature has almost no effect on Asakawa Naoki's body that is immune to cold and heat. What really stops him is the terrifying pressure around him!

The pressure here has reached an extremely terrifying level. Even his body that has stepped into the innate realm, his bones, muscles, blood vessels and skin are all aching at this moment.

Since his body broke through the innate realm, he hasn't felt this way for a long time.

If he continued to dive deeper, Asakawa Naoki had a premonition that his blood vessels would burst first because they could not withstand the pressure, followed by his internal organs tempered by the Five Elements Divine Thunder, as well as his fragile head, and finally his muscles and bones.

"Try again."

Asakawa Naoki closed his eyes and began to shut down his senses.

It was recorded in the Basic Body Refining Technique that the senses of cultivators are balanced.

Just like the hearing of a blind person is better than that of an ordinary person, if other senses are shut down, a certain sense can be amplified to the maximum extent.

The hearing is shut down, the smell is shut down, the taste is shut down, the touch is shut down, and the consciousness is also collected into the sea of ​​consciousness.

At this moment, Asakawa Naoki, who was in the deep sea, could not hear any sound, smell any taste, taste any saltiness, or even touch anything.

The world around him seemed to become dark until he opened his eyes again.

In those pure black eyes, golden light almost filled the entire pair of eyes.

After shutting down the four senses, his supernatural power of the sky eye has reached its peak.

At this moment, he finally saw it.

Deep in the seabed of this sea area, a strange force surged out from a crack, causing the surrounding seawater to heat up while also generating a strange pressure.

This force was familiar to Naoki Asakawa.

Because when it is diluted countless times, it is the so-called natural energy.

"It turns out that it is not an underwater volcano, but a leak of natural energy? No wonder I felt that the natural energy in the seawater was more concentrated before. It turned out that it was not an illusion."

"Naoki, where are you?" Yin Jiuwei in Dantian asked in surprise with his mind, and it was obvious that he also saw the crack through Naoki Asakawa's vision.

"The seabed of the Rain Country." Naoki Asakawa asked concisely:

"Can you absorb this natural energy?"

"......"

Yin Jiuwei was speechless, I'm afraid that even Asakawa Naoki himself can't absorb this kind of pure natural energy.

"Actually, I feel that the crack is a bit familiar." Yin Jiuwei said truthfully.

"Familiar?" Asakawa Naoki had a lot of guesses in an instant.

The tailed beasts like Jiuwei came from the sacred tree, and the sacred tree grew by absorbing the power of the planet of the ninja world. It can be said that the tailed beasts themselves are transformed from the power of the ninja world.

Although the tailed beasts were transformed into chakra by the sacred tree, the essence of the tailed beasts is still connected to the ninja world.

So what leaked from the crack is the original power of the ninja world?

"Wait until there is a chance to approach the crack in the future, and then take you to explore it."

After figuring out everything, Asakawa Naoki, who had more doubts in his heart, recovered his five senses and quickly swam towards the sea surface.

At a depth of 5,000 meters, swimming upstream is much faster than diving, and soon Asakawa Naoki arrived above the sea surface.

Because the speed of the upstream was too fast, the body had not yet adapted to the pressure, and some of the capillaries on the surface of the body were broken, and scarlet blood flowed to the surface of the body. However, the physical recovery ability of the innate realm was extremely strong, and it was soon fully recovered.

"I didn't expect that the power leaked from the crack was much purer than natural energy."

"That level of power may not be called natural energy, but should be called the power of origin."

"Is the natural energy of the ninja world diluted like that?"

"However, no matter what, the "reclamation" plan failed before it was implemented."

The original reclamation plan had two preparations. One was to block the connection point between the Rain Sea and the open sea to ensure that the Rain Sea could not get more seawater replenishment.

The second was to seal the submarine volcano so that it could not continue to evaporate the seawater in the Rain Sea.

But now it seems that the cause of the abnormal evaporation of seawater is not a submarine volcano at all.

With the strength of Asakawa Naoki, he cannot get close to that crack for the time being, let alone other ninjas, so there is no way to talk about sealing.

Not to mention, sealing the crack may have uncertain results.

If the crack cannot be sealed, it will only block the connection point between the Rain Sea and the outer sea, which may eventually lead to the Rain Sea being directly evaporated, and the Rain Kingdom will become a Gobi Desert like the Wind Kingdom. This is unacceptable.