Qi Sea System

He drew the Chakra back into his body, then left it alone and stopped thinking about it.

A moment later, Hyuga Ningyuan felt the warm sensation disappear.

"Chakra really can't be stored. You extract it when needed and use it immediately. It's a bit like stamina!"

The stamina you had today couldn't be saved for tomorrow. If you exhausted your stamina, resting for a while would restore it, while overexertion could lead to death from overwork.

This was highly consistent with Chakra's properties. After all, Chakra was composed in part of physical energy!

But Hyuga Ningyuan was a transmigrator, and his head was filled with all sorts of ideas.

Chakra came from physical energy, but it wasn't physical energy itself. Why couldn't it be stored?

Hadn't Tsunade managed it?

However, Hyuga Ningyuan, who wanted to cultivate immortality, believed that storing Chakra in the space between the eyebrows was completely the wrong path. It should be stored in the Qi Sea.

It should actually have been called the Dantian, but the Naruto World already had something called the Chakra Dantian—the place where physical energy and spiritual energy fused to create Chakra.

So Ningyuan gave the place for storing Chakra a new name.

That was right. Cultivation was practically engraved into the genes of our people. Since he had come to the Naruto World, how could he possibly not try cultivating immortality?

It wasn't as though no one had succeeded. Didn't the Three Great Sage Lands have ancient monsters that had lived for over a thousand years?

If monsters could do it, there was no reason humans couldn't!

Besides, Hyuga Ningyuan had a genuine immortal cultivation method in his hands!

It wasn't long, consisting of only sixteen characters.

Refining Essence into Qi, Refining Qi into Spirit, Refining Spirit into Void, Refining Void into Dao!

"Refining Essence into Qi is simple. Chakra is this Qi, and I've already completed that part. But the question is, where is Qi stored? Could it be that people in the shinobi world have no Qi Sea because their constitutions are different?" Hyuga Ningyuan extracted another mass of Chakra and let it wander around the Qi Sea in his abdomen while opening the section on meridians in his Shinobi Knowledge textbook.

"There really doesn't seem to be anything resembling a Qi Sea here. So do people in the shinobi world not have one?" Hyuga Ningyuan frowned slightly, then shook his head.

No, people in the shinobi world did have a Qi Sea, and its capacity was enormous!

Otherwise, where were the Nine-Tails, the Eight-Tails, and the other tailed beasts sealed?

A place that could hold a tailed beast could hold an enormous amount of Chakra!

Even if ordinary people weren't as outrageous as the Uzumaki Clan, they should at least be able to hold a smaller one.

The jinchuriki of the One-Tails through Eight-Tails weren't all from the Uzumaki Clan. Even Nohara Rin could contain a Three-Tails!

So the question was, where was this place that stored tailed beasts?

"If this place could be found by following the Chakra Meridians, someone would have discovered it long ago. Not to mention anything else, Hiruzen Sarutobi's Chakra must have traveled through every meridian in his body. Even he never found it!"

"That means that, apart from Sealing Jutsu, there's currently no other way to open this place!"

Did he have to learn Sealing Jutsu?

Hyuga Ningyuan thought about it and felt that the path shouldn't be so difficult. No Wuxia novel ever said that opening a Qi Sea was this hard. Martial geniuses who could cultivate Internal Force in a single day were everywhere.

"There's another possibility: the systems are different! Cats have their own language, snakes have their own paths. Chakra follows the Three Meridians and Seven Chakras, so naturally it can't find the Qi Sea!"

"Sealing Jutsu can seal Kaguya above and the Nine-Tails below. Maybe that's also because it follows a different system. The Uzumaki Clan generally has huge Chakra reserves, and that might not be purely a matter of constitution."

But there was another contradiction here. How could Naruto's Chakra reserves be explained? No one had taught him anything.

"Maybe the Uzumaki Clan studied Sealing Jutsu and accidentally followed parts of the Eight Extraordinary Meridians system, and then that memory was inherited through their bodies!"

"Was that constitution called the Sage Body?"

"Senju Hashirama?" Hyuga Ningyuan thought of that freak whose Chakra reserves surpassed Naruto plus the Nine-Tails. Could it be that he had opened his Qi Sea, which was why his Chakra reserves were so massive?

It was just that he followed the Chakra system, so although his Qi Sea had opened, he himself never noticed it?

As for how he had opened the Qi Sea system, his wife was Uzumaki Mito, and he knew Sealing Jutsu too!

Could that possibility exist?

If it were Senju Tobirama, then it absolutely couldn't.

But if it were Senju Hashirama, it would feel perfectly reasonable!

He was just that absentminded. It made perfect sense that he had used the Qi Sea without even realizing it!

And then there was Wood Release!

Many people said Wood Release was a Kekkei Genkai or Kekkei Tōta, yet no one had ever replicated it.

Earth plus Water made Lava Style, not Wood Release.

So the question was, could Wood Release actually belong to something from another system?

Gold, Wood, Water, Fire, Earth?

Hyuga Ningyuan believed that was possible, and highly likely!

Because the Uzumaki Clan also had a technique called Adamantine Sealing Chains!

Gold!

"Qi Sea system, Sealing Jutsu, Gold, Wood, Water, Fire, Earth!"

"Chakra system, Chakra, Earth, Wind, Water, Fire, Lightning!"

Completely cracked!

The theoretical verification was complete, but Ningyuan's problem remained unresolved. Without knowing Sealing Jutsu, how could he find the Qi Sea?

Hyuga Ningyuan thought for a moment and found a method.

He closed his eyes and meditated.

He extracted physical energy, but did not fuse it with spiritual energy.

What was physical energy called at that point?

Internal Force!

That was right. Internal Force was internal Qi produced by the body refining food, and its composition was exactly the same as physical energy!

And Internal Force followed the Qi Sea system!

"So hard!" Hyuga Ningyuan discovered the difficulty the moment he tried. While meditating, he couldn't control the birth of spiritual energy. Once spiritual energy and physical energy appeared at the same time, they would uncontrollably fuse into Chakra!

That was because attention and spiritual energy were highly unified. As long as he focused on physical energy, his spiritual energy would follow his attention toward it.

Unless he didn't focus on physical energy and allowed it to move on its own, or he produced no spiritual energy at all.

The former required an external cultivation method, such as Tai Chi or the Eighteen Dragon Subduing Palms.

But where could Ningyuan get something like that?

Then what about producing only physical energy and no spiritual energy?

As long as a person was still thinking, they would produce spiritual energy. If he didn't want to produce spiritual energy, he would have to reach the legendary realm of Mindfulness and Non-Attachment, Formlessness and Impartiality!

"No wonder the shinobi can't find the Qi Sea!"

It was so difficult that it practically blocked off every shinobi's path to finding the Qi Sea!

Fortunately, besides being a transmigrator with an active imagination, Hyuga Ningyuan also had a cheat!

[You performed Chakra Extraction. Chakra Extraction Experience +1, General Experience +1. Current Rank: LV1 (1/100)]

[You performed Internal Force Extraction. Internal Force Extraction Experience +1, General Experience +1. Current Rank: LV1 (1/100)]

[You performed Magic Meditation. Magic Meditation Experience +1, General Experience +1. Current Rank: LV1 (1/100)]

[Magic Meditation]!

That should be spiritual energy, right? Wasn't spiritual energy what mages used?

He glanced at the overall panel:

[Name: Hyuga Ningyuan (Ningyuan)

Gender: Male

Age: 5

Skills:

Sleeping LV1 (8/100)

Diet LV1 (1/100)

Marching LV1 (1/100)

Chakra Extraction LV1 (1/100)

Internal Force Extraction LV1 (1/100)

Magic Meditation LV1 (1/100)

Talent: None

General Experience Points: 6]

He opened the Internal Force Extraction entry. After (1/100), there was a flickering plus sign.

"In this life, my cultivation, enlightenment, and strength will all depend on myself!"

"Deep Blue, add points!"

He added all 6 General Experience Points to Internal Force Extraction, instantly raising Internal Force Extraction to 7/100!

"Hm?" In an instant, Ningyuan sensed a slight change. He immediately closed his eyes and extracted physical energy!

"So much!"