Starting with Naruto, I'll become stronger through my own efforts.

Chapter 231 That Black Sun

The Fifth Hokage, Natsu, wrote letters to Iwagakure and Kumogakure, in which he sternly reprimanded the Third Tsuchikage and the Fourth Raikage for leaving without saying goodbye.

Xia Zuo stated very seriously, "I did indeed plot against the Joint Chunin Exams and I did force the Fourth Kazekage to his death, but that's no excuse for you to run away without saying goodbye."

Therefore, the Raikage and Tsuchikage must apologize for their impolite behavior!

This is what they call: "The magistrate is allowed to set fires, but the common people are not allowed to light lamps."

The ninja world is a dog-eat-dog world of fierce competition. Since my Konoha Village is the strongest, stronger than all of you combined, then the Fifth Hokage can do whatever he wants.

You know what, after the Fifth Hokage did something so unreasonable, the entire ninja world actually calmed down, and no ninja village tried to cause trouble.

The strongest ninja in the ninja world is actually a madman, and the resulting deterrent effect is indeed formidable.

With the situation in the ninja world calm, Konoha Village was able to focus its resources on research, and carefully selected ninjas and a massive amount of supplies were transported to Loulan.

A large number of ninjas skilled in earth-style techniques gathered together and created an underground river stretching hundreds of kilometers from the Land of Rivers to Loulan, diverting clear fresh water there.

At the same time, Loulan's border was raised by nearly a hundred meters using earth-escape ninjutsu, forming a natural rock wall that completely surrounded this small country.

However, when the Konoha ninjas began clearing the ruins of Loulan, they encountered the problem of demolishing the high-rise building wreckage.

These skyscrapers are not only excessively tall, but also incredibly close together.

Even if ninjas were to dismantle it, they would find it extremely difficult and the risks involved in the process unacceptable.

In just seven days, 15 subordinates were injured, one of whom was seriously injured.

Such heavy casualties in a non-combat mission alarmed the Fifth Hokage, who rarely gets involved in specific affairs.

Xia Zuo then used the Flying Thunder God Technique to reach Loulan. After careful observation and communication with the ninja in charge of the mission, Jonin Yamashiro Aoba, a demolition plan was finalized.

The first step is to withdraw all the Konoha ninjas, all the way to the rocky wall at the border, and be prepared to jump down and take cover at any time.

The second step involved teams of Konoha Jonin conducting a final, rigorous search to ensure no survivors remained in the ruins area.

The third step is for the Fifth Hokage, Natsume, to make his appearance.

He first used [Magnetic Release: Electromagnetic Control] to connect with the earth's magnetic field, flying to the sky above the ruins of Loulan, while simultaneously refining a massive amount of Nuclear Release chakra.

The enormous, unfamiliar chakra fluctuations left all the Konoha ninjas speechless. The Fifth Hokage in the sky shone as brightly as the sun in terms of chakra perception.

Xia Zuo's chakra fluctuations were so intense that even ninjas who were not good at sensing chakra could clearly feel them, and Konoha ninjas who were good at sensing chakra even had the illusion of being "blinded".

"What... what kind of ninjutsu is this?"

"This must be a forbidden technique, a forbidden technique I've never heard of before."

"I thought it was Wood Release."

"I also thought they would use Wood Release, but this forbidden technique seems even more terrifying."

"Yamashiro Jonin, do you know what kind of forbidden technique this is?"

Yamashiro Aoba smiled wryly and said, "I don't recognize it either. It should be a forbidden technique newly developed by the Fifth Hokage."

"In short, everyone can now get a good feel for the Hokage's strength."

After three breaths, Xia Zuo had accumulated enough nuclear chakra, so he clapped his hands together and activated the ninjutsu.

【Nuclear Escape - Sunspots】

He slowly separated his hands, revealing a dazzling pearl of light in his palm.

As Xia Zuo's hands spread wider and wider, the light orb in his palm grew larger and larger, soon becoming a blazing fireball.

When the fireball swelled to about half a person's height, a black patch appeared at its core.

Xia Zuo originally wanted to name this technique "Nuclear Release: Brilliant Radiation," but since ninjutsu is different from technology, the process of creating the nuclear material was a dazzling fireball like the sun.

Only within a fireball subjected to high temperature and pressure can chakra be transformed into fission-induced heavy nuclear elements, which are then detonated.

This process looks like sunspots appearing on the sun and eventually evolving into a black sun, and has nothing to do with brilliant radiation.

Left with no other choice, Xia Zuo had to change his name, and the new name, chosen to reflect his performance, sounded more sophisticated and classy.

Upon seeing the black patches appear, Xia Zuo didn't hesitate to push the fireball downwards, while manipulating the magnetic force to propel himself to a higher altitude.

The Konoha ninjas stared in disbelief as a sun was born in the Hokage's hand. The sun's light wasn't dazzling, but it still looked dangerous and terrifying.

Especially when the Fifth Hokage pushed the sun towards the ground, the ever-darkening sun became even more terrifying.

When the sun turned completely black, even the sky darkened, as if a solar eclipse had occurred, or as if the real sunlight had been absorbed by the black sun.

Some Konoha ninjas with a keen sense of danger couldn't help but shudder, immediately recalling the Hokage's instructions.

They immediately shouted, "Quick! Hide!"

"The Hokage said we must hide behind the wall."

Yamashiro Aoba suddenly snapped out of it and shouted, "Jump! Everyone jump!"

"That black sun is about to explode! Quick, hide!"

Before seeing this black sun, the Konoha ninjas were all filled with anticipation for spectacular ninjutsu.

But upon seeing the final, pure black sun, they all felt its terrifying power and lost all interest in admiring it; all they could think about was getting as far away as possible.

Even after the Konoha ninjas jumped off the wall, they could still feel the impending terror weighing heavily on their hearts, even through the thick rocks.

Following their training methods, the Konoha ninjas took deep breaths and silently counted, using the time taken to alleviate their emotional distress.

But methods that were clearly effective in the past have lost their effectiveness today; a mere ten seconds or so felt like half a day had passed.

Just as the Konoha ninjas were getting impatient, they simultaneously felt the ground jump upwards, followed by a push from the rocky wall behind them.

Then the Konoha ninjas all felt a dizziness, and many genin even lost consciousness, which lasted for 1 to 5 seconds.

The Konoha ninjas' expressions changed drastically.

For a ninja, losing consciousness for more than one second is tantamount to death.

Even a moment of dizziness can be fatal.

Yamashiro Aoba and the other Konoha Jonin looked at each other in horror, and they all saw the same thing in each other's eyes: What on earth happened?

No, just how powerful was the Fifth Hokage's technique?

However, the Konoha ninjas were unable to communicate at all. Following the earthquake wave, a terrifying air shockwave had already crossed the rock wall and rushed to a more distant place.

The Konoha ninjas hiding behind the rocks avoided the impact of the shockwave, but the spread of air pressure still made them feel as if a huge rock was pressing on their chests, making it hard to breathe.

It felt like I'd been punched in the head, and I felt dizzy and lightheaded.

As the turbulent echo of the shockwave appeared, the frequency of the violent explosion finally dropped to a level that could be heard by the human ear, and the roaring sound made the ninjas cover their ears in pain.

This time, not only did some Konoha genin faint, but even some chunin couldn't hold on and vomited.

Yamashiro Aoba barely opened his eyes and looked at the sky above, which was dyed orange-red. His respect for the Fifth Hokage instantly turned into worship.

He was very curious about just how spectacular the terrifying black sun would be when it erupted.

The Konoha ninjas hiding behind the rocky wall couldn't see it, but Xia Zuo, flying high in the sky, could see it clearly.

Under his control, the black sun did not explode upon hitting the ground, but was detonated by Xia Zuo 50 meters above the ground, exactly at knee height of those tall buildings.

The explosion of 【Nuclear Escape - Sunspot】 was completely devoid of any frills, and could not even be called an explosion; it was simply a massive radiation of light and heat.

The nearest rows of buildings were instantly melted into magma, which then turned into silicon-based vapor and subsequently into molecular-free plasma.

The first three rows of buildings were completely melted, the buildings behind them turned into orange silicon-based lava steam, and the outermost buildings melted like chocolate in an oven.

The presence of high temperatures and steam created a gas pressure of millions of Pascals, which was followed by a violent explosion.

The explosion first impacted the ground, slamming the molten surface into a perfectly circular crater, after which the earth rippled like the surface of the sea.

The seismic waves traveled outward at speeds far exceeding the speed of sound. Xia Zuo could see a ring-shaped ripple of smoke and dust on the ground that surpassed the white shockwave front of the explosion and overtook the rock wall.

The massive wall created by ninjutsu suddenly jumped up like a toy, then cracked open with countless fissures.

Then the shock wave swept across the wall, which, while no longer causing the wall to bounce, made the cracks larger and more numerous, and stirred up clouds of dust.

Fortunately, the [Nuclear Release: Sunspot] detonated heavy nuclear elements converted from chakra, and Xia Zuo was able to control its radiation levels.

He has already adjusted the radiation level to zero, using all the energy from fission for the release of light and heat.

This was not because there were a large number of Konoha ninja around the detonation point, but because the Fifth Hokage, Sasuke, needed to protect his subordinates.

It's not because the detonation point is on the surface of the ninja world, where light and heat can exert their maximum power and destructive force through high-density matter.

The real reason is that radiation has no effect on ninjas.

A weaker form of radiation damages cells by microscopically destroying their genetic material, causing errors during cell division and replication, disrupting metabolism, and causing the irradiated organism to slowly rot and die.

A more potent form of radiation damages the cell wall, causing widespread cell death and resulting in rapid decay and death.

However, if the radiation becomes too strong, it enters the realm of high-energy particles, lasers, and microwaves, and is no longer the microscopic realm of radiation that causes damage.

After developing [Nuclear Release], Xia Zuo envisioned a series of radiation ninjutsu, the kind of death where the body gradually or rapidly decays, and the ability to continuously spread and infect, which perfectly fits the characteristics of a curse and would definitely have a huge deterrent effect.

But after the experiment, Xia Zuo was surprised to find that the radiation was ineffective against all living beings in the ninja world.

Even the weakest, most ordinary rat, which doesn't even qualify as a ninja beast, can live safely in an environment with hundreds of thousands of roentgens of radiation.

Xia Zuo kept increasing the radiation intensity, which eventually killed the experimental mice.

However, the cause of death for these laboratory mice was the heating of their cellular fluid by radiation; the extremely strong radiation heated the mice's body fluids to 50 degrees Celsius.

degree.

The excessively high body temperature caused the mice to develop heatstroke, which caused the proteins that make up their bodies to deteriorate, resulting in a large-scale loss of physiological functions and organ failure.

In layman's terms: it's been cooked.

Experiments have shown that radiation cannot kill mice at all, and it does not even affect their reproduction.

This left Xia Zuo completely dumbfounded. Did microphysics not exist in the ninja world?

No matter how much he researched and experimented, he couldn't find the specific reason, or even a way of thinking.

However, Xia Zuo was not in a hurry. He couldn't figure it out because his scientific research talent was average. The ninja world had great scientists with exceptional talent.

He painstakingly worked to become Hokage and wholeheartedly worked to create a future for Konoha Village, all for this moment.

Therefore, the Fifth Hokage mobilized the living great scientist Orochimaru and the deceased great scientist Tobirama Senju, ordering them to conduct joint research.

Great scientists are different from others; in just a few days, the two of them determined why the radiation was harmless.

To put it bluntly, Xia Zuo was trapped in a cognitive bias, searching for the cause in the physical factors he was familiar with, while ignoring the biggest difference in the ninja world.

That is the existence of chakra.

Orochimaru and Tobirama Senju immediately started with chakra. They tried many methods and finally completely drained the chakra from the experimental mice.

Laboratory mice that could live and reproduce safely under hundreds of thousands of roentgens of radiation were depleted of their chakra and exposed to 10,000 roentgens of radiation, and died from rotting within minutes.

Later, Orochimaru and Tobirama Senju proved through experiments that as long as chakra was depleted, radiation of just a few hundred roentgens was enough to be fatal.

The chakra's resistance to radiation is simply unbelievable.

Even a million roentgens of radiation can be blocked by the weakest chakra, and since every ninja's cell is full of chakra, they are completely immune to radiation damage.

In other words, as long as the problems of breathing, low temperature, navigation, and flight can be solved, ninjas can traverse the void with their physical bodies and travel freely between stars.

The ninjas of the ninja world are so well-suited for interstellar travel, so the Otsutsuki clan, who control and spread chakra, are naturally even more suited. They truly deserve to be called a plundering race that roams the stars.

Since radiation is meaningless in the ninja world, Xia Zuo can only adjust his ninjutsu.

He worked to reduce the radiation from fission to zero, converting all the energy into light and heat.

This is how the forbidden technique 【Nuclear Release: Sunspot】 came about.