Sealing Crystal

Essential Battle Armor for the Son of the Pot

"Phew!"

At dawn, Shimura Kentei woke up on time. Wiping the cold sweat from his forehead, he still felt lingering fear over last night's miserable combat experience.

Shimura Keiko possessed four Chakra natures: Yin, Yang, Wind, and Lightning. Although her talent for ninjutsu was average, her Special Jonin strength had allowed her to master several B-Rank jutsu. Her Wind Release and Lightning Release Ninjutsu were especially vicious. Last night, he had either undergone Lightning Release electrotherapy or been sliced into dumpling filling by Wind Release. His fate had been utterly miserable.

"Sister Keiko, morning!"

He sat up and greeted his fiancée, who was still writing furiously. Just as he was about to get up, get dressed, and wash up, he suddenly felt a chill below. Looking down, his heart skipped a beat.

"What did you do to me last night?"

Turning his stiff neck, Shimura Kentei knew that the changes to his body had to be this woman's doing.

"Exactly what you think. Don't worry, I completely destroyed the hair follicles down there with Lightning Release. From now on, you'll be a little brat whose hair will never grow in properly. Big Sister will dote on you!"

Setting down her fountain pen, Shimura Keiko turned around and affectionately pinched Shimura Kentei's cheek.

"(⊙ω⊙)!"

Those doting words left Shimura Kentei completely dumbfounded. Once he understood, his face twitched uncontrollably.

"You'll lose me if you do this!"

He stared resentfully at his fiancée, feeling the urge to divorce this woman!

"In my dictionary, there is only widowhood, never divorce. Don't even think about escaping from the palm of my hand in this lifetime!"

Her fair, delicate hand reached toward her little man and made a grasping gesture, the threat in it entirely undisguised.

Although this little man was astonishingly gifted, his current strength was right there for all to see. She was confident she could keep him in line for the rest of his life.

"You've become impure!"

With a sigh, Shimura Kentei regretted giving this woman that E-Rank Body Strengthening Technique three years ago.

Ever since then, she had become increasingly casual around him and more and more uninhibited. She had gone from a tsundere woman to the scheming woman she was today.

In the end, Shimura Kentei helplessly accepted the reality that he had become one of the Four Sacred Beasts. No longer dwelling on that troublesome fact, he used Chakra to undo the seal on the basement door and began preparing to assemble the battle armor.

The individual parts of the armor had already been forged last month. Only the final assembly remained, and it was also his greatest source of confidence in becoming a ninja.

Out of curiosity, Shimura Keiko created a Shadow Clone to remain behind and continue studying the Body Strengthening Technique scroll, while she herself followed him into the basement.

"You're still as flashy as ever!"

Shimura Keiko unfolded the armor blueprint and looked over the complete illustration of the battle armor, giving him a disdainful look. Yet a trace of longing rose in her heart.

This armor was simply too gorgeous. Even she found herself deeply tempted by it.

Though armor did not fit the mainstream style of the current ninja world, it had been extremely popular during the Warring States Period. Even the First and Second Hokage of Konoha had fought in armor.

Even now, some of the village's older powerhouses still wore armor. Even her uncle, Sarutobi Hiruzen, had some armor protection on his body.

But in the past, those had merely been simple layered armor. Their appearance was nowhere near comparable to the armor designed by her little man. They were not even in the same dimension!

As a taijutsu-type ninja, if she could get a set of battle armor like this, her combat power would at least double.

"It won't be easy to wear this armor. You need to have a load-bearing capacity of one thousand kilograms in your normal state!"

As he embedded scales into the chainmail, Shimura Kentei casually spoke. That was the minimum requirement for this armor; not just anyone could wear it.

Although ninja physical fitness was far superior to that of ordinary people, and their load-bearing ability was also strong, that was usually only seen in exceptions like Might Guy and Rock Lee, who often trained with exaggerated weights.

But those were special cases. Ninjutsu remained the main focus of ninja, and they were generally quite average in terms of taijutsu and physical fitness.

If someone truly put on this 1,080-kilogram battle armor, never mind fighting—they might not even be able to stand up.

It would be ridiculous if they were crushed by their armor before the battle even began.

"One thousand kilograms? Did you forge this entire set of armor out of Heavy Gold?"

Shimura Keiko's beautiful eyes widened. She felt that her little man might have something wrong with his head. Who used Heavy Gold to make armor?

Heavy Gold was a Special Metal with extremely high density, more than ten times heavier than gold.

As a high-density Special Metal, Heavy Gold possessed extraordinary hardness, far harder than diamond, as well as great toughness. But its weight was simply too shocking.

Basically, no one used Heavy Gold to make weapons or armor. Moreover, Heavy Gold was an associated mineral of gold, with extremely low production and a price comparable to Chakra Metal.

Earlier, this little man had asked her to gather and purchase Heavy Gold. She had not known what it was for at the time. She never expected him to use it to make battle armor.

"Not all of it. Seventy percent is Heavy Gold, twenty percent is various Chakra Metals, and the final ten percent is Sealing Crystal."

Without hiding anything, Shimura Kentei explained the material composition of the armor. There was no need to conceal such things.

But those materials made Shimura Keiko's beautiful eyes widen again. She truly felt that her little man had a hole in his head.

Sealing Crystal was an extremely rare crystal with a special radiation that could disrupt any form of energy. Whether it was monks' spiritual power, samurai's qi, or the Chakra of ninja like them, as long as they entered a certain range of Sealing Crystal, the energy within their bodies would lose control and run wild.

Some places even used Sealing Crystal as a torture device to restrain powerful people.

Fortunately, Sealing Crystal was exceptionally rare and frighteningly expensive, making widespread use impossible. Otherwise, it would become the nightmare of all cultivators.

"What?"

Shimura Kentei looked at his fiancée, who had placed her small hand on his forehead, completely baffled as to what this woman was doing.

"I'm checking whether you've fried your brain!"

Shimura Keiko answered gloomily. She was actually quite satisfied with this little man. Not only could he create secret techniques to strengthen the body, but he could also make money to support the family. Good men like him were hard to find.

Smack!

"Your brain is the one with a problem!"

Shimura Kentei slapped away her delicate hand irritably. Flicking his finger, he extended a Chakra Thread and dragged over a massive shield placed in the corner, taking it into his hand.

"Although Sealing Crystal can disrupt energy, it isn't absolute. As long as your Chakra is condensed enough and your control is strong enough, you can reduce or even become immune to its effects. It can also serve as a supplementary tool for training Chakra control."

As he explained, Shimura Kentei used the Super Strength Technique and swung the heavy shield a few times.

This shield had also been made from Heavy Gold, Chakra Metal, and Sealing Crystal. Its weight had likewise reached a terrifying thousand kilograms, no lighter than the battle armor.

If not for his own powerful physique, combined with the enhancement of the D-Rank Super Strength Technique, he would not even have been able to lift this thing, much less swing it.

But all of this was necessary. In his view, the current ninja system had problems. Offensive power far exceeded physical defense, making everyone absurdly fragile. Even Uchiha Madara had been stabbed to death by a single blade. Sometimes, even maxing out your evasion did no good, because some ninjutsu covered an enormous area. Take Edo Tensei Madara's Fire Release during the Fourth War, for example—how were you supposed to dodge that?

And since defense was lacking, naturally, one had to layer armor.

As the saying went, wear the thickest armor and take the harshest beating. Being the one who laughed last was what truly mattered.

The ninja of the Warring States Period had a proper style, all clad in armor. But by the era of ninja villages, things had changed. Though traveling light was useful for assassinations, as the eldest young master of the Shimura Family, did he need to stoop to assassinating others?

A real man had to face his enemies head-on. That was why a solid set of armor was essential.

Of course, the most important reason was that his Pot Kage father was simply too ruthless. His enemies were everywhere, and even within Konoha, there were many who wanted the old man to bury his son. As the Son of the Pot, killing enemies was not the priority. Staying alive was.

If he had possessed the technology, he would have wanted to build a Gundam to travel around in. At the very least, he needed a tank.

At this stage, this set of battle armor would do. Anyone who wanted to hurt him had to break through this armor first. If they could not break it, they were trash.

Besides those reasons, he had also developed this armor mainly to prepare for the future Fourth War. After all, against Six Paths Madara and people like Otsutsuki Momoshiki later on, ninjutsu was basically useless. Only senjutsu and taijutsu could be effective. Those would be the main directions of his future development.

He had no avenue for senjutsu at the moment, and its threshold was somewhat high, so he would not study it for now. But he could train taijutsu first. He even planned to spread that Body Strengthening Secret Technique and see if he could cultivate several hundred Might Guy lackeys. Even if the Sage of Six Paths crawled out of his grave, they could shove him right back in. Then he could coast to victory.

Who knew how many years it would take to train to his level?

Secretly calling him a monster, Shimura Keiko truly could not understand the thought process of her little man.

Everyone else avoided Sealing Crystal like the plague, yet he treated it as a precious aid to cultivation—and he had even succeeded in training with it.

Even in Sunagakure, few people could use Chakra Threads to drag something weighing over a thousand kilograms. In terms of the toughness of his Chakra Threads, he was likely already comparable to Elder Chiyo.

"You can give it a try. The results are quite good. Once you adapt, not only will your strength increase considerably, you can also incorporate Sealing Crystal into your Bright Silver Spear, making it even more suppressive against ninja.

"But if you want to try it, you need to consume 99.9 percent of the Chakra in your body, bringing yourself to the brink of exhaustion."

Setting down the large shield, Shimura Kentei recommended this nearly self-abusive training method to his fiancée.

Though the training process was miserable, once successful, it could greatly increase the condensation and control of Chakra, significantly improving one's strength.

Of course, the cultivator could not have too much Chakra in their body. Otherwise, the Chakra driven berserk by the radiation of the Sealing Crystal would be enough to make someone explode. It was equivalent to releasing ninjutsu inside the human body. The danger was obvious.

"Can't it be sealed?"

Shimura Keiko frowned slightly. She did not like the state of nearly exhausting all her Chakra.

"Fuinjutsu is also formed on the foundation of Chakra. Do you think that thing can withstand Sealing Crystal radiation for long?"

Shimura Kentei spoke irritably. He understood this matter quite well.

Even the pitiful amount of Chakra in his body had killed his replicas in Black Cauldron Space countless times when it ran wild, much less someone like Shimura Keiko, a Special Jonin.

It could not be helped. The human body was simply too fragile, especially organs like the internal organs, brain, and spinal cord. The slightest mistake could result in death.

He had replicas in Black Cauldron Space and could make countless mistakes. Even if his body exploded into pieces, it did not matter. But Shimura Keiko was not a cheat like him. She only had one life.

"I'll try it!"

Shimura Keiko pursed her lips before finally deciding to give it a try.

Her talent was not bad, but if she followed the conventional path of training, she would at most become an Elite Jonin in this lifetime. Reaching Kage-level strength, even the lowest quasi-Kage tier, would be incomparably difficult.

It was a matter of physical talent. After all, she had been born into the Sarutobi Family, a secret technique clan rather than a bloodline-limit clan.

Yet none of her Chakra natures was Fire, so she could not learn the Sarutobi Family's secret Great Fireball Jutsu. Otherwise, she would not have been treated as a tool for marriage alliance and married into the Shimura Clan.

If she wanted to reach Kage level, she had to seize every opportunity to grow stronger.

"What are these things?"

Shimura Keiko looked around the spacious basement, her attention drawn to two enormous nutrient tanks. Inside each floated a black, squirming mass.

Those things were still wriggling faintly, clearly not dead objects.

"They're called Venom, a special creature without intelligence and guided only by instinct. After refining it with Chakra, it can be used as a biological ninja tool.

"For now, I've only developed one function for it: covering the entire body. It can effectively prevent an enemy's poisonous gas from touching the body, and when you suffer external injuries, it can fill the wound and temporarily stop the bleeding.

"The one on the left was specially cultivated for you. With your amount of Chakra, feeding it for half a year should let you control it freely."

Shimura Kentei walked over as he explained, opening the nutrient tank on the left and taking out the mass of Venom inside.

He had cultivated this thing from a special creature capable of absorbing trace amounts of Chakra to grow. It had taken a full eight years to develop these two traits.

The inspiration for it had actually come from Venom in the neighboring Marvel universe and White Zetsu from the Naruto world. In Naruto, there was a Black Zetsu named Tobi who could wrap around others like clothing, enhancing their abilities in every aspect.

Uchiha Obito had once been wrapped by Black Zetsu, and during the Fourth War, Black Zetsu had also wrapped Yamato. Using Yamato's Wood Release, it enhanced its own Wood Release power and unleashed the non-senjutsu version of True Several Thousand Hands, that super ninjutsu.

Of course, his current Venom suit was nowhere near that impressive. It was still far from it, but using it to cover the whole body and prevent poisonous gas from seeping through was no problem.

At the same time, once the Venom suit wrapped around someone, it could effectively isolate the user's presence and better conceal them, making it highly practical for ninja.

"It still needs to be fed for half a year before I can use it!"

Shimura Keiko pouted again, feeling that this thing was a bit of a scam.

"That's already fast enough. I fed this thing for a full three years."

Shimura Kentei glared at her, feeling that this woman did not know what was good for her.

"Do you want it or not? Forget it if you don't!"

"Yes, of course I want it!"

Shimura Keiko hurriedly snatched the constantly squirming mass of Venom. She would not let such a good thing slip away.

Although its effects were somewhat lacking, it could prove highly useful in certain situations. Besides, she was about to exhaust the Chakra in her body to condense it with Sealing Crystal, so she could use that Chakra to feed this thing.

Just then, a memory suddenly appeared in Shimura Keiko's mind, causing her to freeze slightly.

"You do your thing. I'm going upstairs to continue reading your cultivation method."

After saying that, Shimura Keiko quickly climbed the stairs back to the room above, where she saw a cool-looking, handsome middle-aged man.

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