Elemental Chakra Mode

That afternoon at the Uchiha Clan Head's residence, Shin found Fugaku, took a stack of chakra paper, then took his leave and returned to his room.

At the time, Fugaku saw his slightly reddened eyes but didn't think much of it.

He assumed his younger brother was crying from frustration over being unable to learn taijutsu.

It never occurred to him that the other was actually moved to tears by overhearing his own conversation with their father.

Chakra paper can detect the nature of a ninja's chakra.

Chakra is divided into five attributes—Fire, Wind, Lightning, Water, Earth—and when chakra is channeled into the paper, the surface changes according to the attribute.

Fire: the paper ignites.

Wind: the paper splits from the middle.

Lightning: the paper wrinkles.

Water: the paper becomes damp.

Earth: the paper crumbles.

By testing his own chakra attributes, Shin could better align with the corresponding elements for learning ninjutsu and mastering chakra nature transformation.

He pulled one sheet from the stack and gently infused a small amount of chakra.

Soon, the paper's surface showed changes: one area caught fire, one area split open, one area wrinkled up, one area grew damp, and the last area crumbled.

Shin was instantly startled. Staring at the result on the paper, he pulled out another sheet to test again.

"Looks like my chakra has all five attributes. Aside from certain secret techniques, there are plenty of ninjutsu I can learn..."

He was very satisfied with the result.

His physical constitution might be poor, but the variety of chakra natures meant that even without walking the path of taijutsu, he could still become a strong ninja.

Sure enough, when heaven closes one door, it leaves another open.

Ninjas with all five chakra attributes were invariably geniuses among geniuses.

As far as Shin knew, the Third Hokage Hiruzen Sarutobi and Kakashi Hatake both possessed all five chakra attributes.

One was called the Professor of Ninjutsu, the other was known as "Kakashi the Equalizer"—cough—the Copy Ninja.

So being born with all five chakra attributes made nature transformation much easier for him than for ordinary people.

(Though later on, it became something anyone could cultivate... even the Seventh Hokage in Boruto learned Earth Release.)

Shin really wanted to copy all kinds of ninjutsu one by one, just like Kakashi Hatake.

But he knew that with his five-year-old's chakra reserves, he couldn't learn any advanced ninjutsu.

With all kinds of cheat-like boosts, even learning one forbidden technique a day wouldn't be a problem.

But with this tiny amount of chakra, even successfully releasing one would be a stretch.

Thinking this, his earlier excitement faded, and he began to think rationally.

"With my current chakra reserves, instead of learning ordinary ninjutsu, it's more practical to develop my own abilities..."

Shin's body possessed certain functions of a mobile phone.

Enhanced thinking speed, powerful hearing, dynamic visual capture, and strong memory corresponded respectively to the processor, receiver, camera, and memory.

He believed many other components were still waiting to be developed.

Chakra is extracted one cell at a time from the 130 trillion cells in the human body as physical energy. Its nature is very similar to "electricity," so cells are like "batteries" that can automatically recharge.

However, the essence of chakra is the fruit of the alien Ōtsutsuki's God Tree.

That is, the God Tree converted the planet's hard-to-use natural energy into chakra with a lower threshold.

If not for the Sage of the Six Paths distributing chakra to the people back then, this world would probably be developing heavy industry like the planet Shin lived on in his previous life.

Shin had an idea about the essence of chakra.

Cells are self-charging batteries, and meridians transmit chakra like wires. So what would happen if you actively charged the cells?

There was a famous saying from his previous life: Practice is the sole criterion for testing truth.

He decided to experiment.

Shin used nature transformation to turn his chakra into the Fire attribute.

Then he slowly injected it into the index finger of his right hand.

The corresponding cells immediately felt a slight sting.

He instantly understood something.

Charging is like dripping a drop of water onto a stack of tissues.

If you want to wet only one sheet, you have to lift it up to drip on it, or separate it with something.

Otherwise, all the paper will be soaked through.

Batteries also have a capacity limit, and each cell's capacity is different.

After chakra is injected, the cells change. Without isolation, it can also damage the surrounding cell membranes.

In severe cases, the cells could even undergo permanent necrosis.

Therefore, it was also necessary to use mutually restraining chakra to isolate the surrounding area.

Ten minutes later, Shin used one-tenth of his total chakra to complete the injection of Fire Element chakra into the index finger of his right hand.

At the same time, he used Water Element chakra to block off the base of the finger.

The surface of his fingertip looked no different from usual, aside from a faint wisp of heat rising upward.

But at this moment, its temperature was already close to that of ordinary flames.

If he had directed the injection of Fire Element chakra toward a ninjutsu, he would have already completed nature transformation in the traditional sense.

However, with his current total chakra, he couldn't sustain the release of a single nature-transformed ninjutsu.

He gazed at his finger, which maintained a high temperature while consuming very little chakra, pondered for a moment, then stood up and walked to his desk.

Afterward, he curled the fingertip concentrated with Fire Element chakra and flicked it toward the desk in front of him.

With a "bang,"

the Fire Element chakra within his fingertip burst forth instantly, blasting the desk into powder.

Moreover, the fragments left behind by the desk showed signs of carbonization, as if scorched by intense heat.

"Such power? A single finger can reach this level... but it would be difficult for someone with only a single element to use..."

For Shin, who was born with all five elements, this was merely a piece of cake.

Among the chakra natures: Fire defeats Wind, Wind defeats Lightning, Lightning defeats Earth, Earth defeats Water, and Water defeats Fire.

For someone with a single chakra nature, after using it, the corresponding cells would likely be rendered useless.

After spending the entire afternoon testing various elemental chakras, Shin finally reached a conclusion.

All five elemental chakras could charge the cells, and their properties each differed:

Fire Element increased power; after charging, it emitted high heat; releasing chakra caused an explosion; the side effect was cellular dehydration.

Wind Element lightened the cells, granting gliding ability; releasing chakra formed high-frequency wind blades on the body's surface; the side effect was cellular edema caused by high-speed vibration.

Lightning Element increased bodily speed; releasing chakra generated electric arcs outside the body; the side effect was electrolyte imbalance in the cells, leading to symptoms like weakness, nausea, limb convulsions, and unconsciousness.

Earth Element enhanced impact resistance; releasing chakra formed an extremely hard rock layer on the surface; the side effect was cellular hardening.

Water Element increased cell capacity, causing partial enlargement of body tissues; the side effect was permanent enlargement, which could only be reversed by waiting for the cells to naturally consume the excess water.

Additionally, switching between different elemental chakras incurred a loss of about five percent.

This value would decrease linearly as the maximum storage capacity of cells in his brain increased.

Shin ultimately named the form taken after injecting elemental chakra into cells the Elemental Chakra Mode.

In this mode, he could enhance various physical attributes and perform raw chakra release.

With his current chakra reserves, he was still insufficient to fully enter Elemental Chakra Mode.

Forcing entry would only last about one second.

Furthermore, all cells in his body would suffer side effects.

Perhaps after unlocking the Sharingan, he could reduce chakra consumption more precisely.

Then, Shin would be able to last longer, wouldn't he?