If Yuhara dared to conduct such an experiment, he must have been fairly confident of success. Fundamentally, what he was trying to do was far simpler than the Cursed Seal. As long as nothing went wrong with his constitution, the experiment would be fine.
Even if it failed, losing an arm was not an unbearable price for someone like him...
Aside from the pain.
As someone with the ability to control metal, losing a hand would not affect Yuhara's combat strength. In fact, as long as he replaced all the pots, bowls, and other utensils around him with metal ones, losing a hand would not affect his daily life either.
Interestingly, Yuhara had just told Tigo not to push herself too hard, yet how could what he was about to do be summed up with the words "push yourself"? This was practically extreme.
So Tigo naturally hesitated.
"Don't worry. There probably won't be any problems... To prevent what happened last time from happening again, I have to increase my strength." Yuhara said.
He understood the situation very clearly. If he did not dare risk losing a hand now, then the next time he went to the battlefield, he might lose his life instead. So it was not that Yuhara was especially ruthless toward himself. He simply had no other choice.
No one would come to save him on the battlefield. He could only rely on himself. After weighing the risks and benefits, Yuhara would naturally proceed without hesitation.
Under Yuhara's insistence, Tigo could only stand to his left with a blade in hand.
"Get ready. I'm starting."
After reminding her once more, Yuhara took a deep breath and began guiding his Chakra through the technique drawn in blood on his palm. Stimulated by this Chakra and guided by the technique, the Nature Energy within his body and the surrounding environment began gathering toward the palm of his left hand.
Once enough Nature Energy had been absorbed, the technique on his hand began to close.
The powerful, vibrant energy made Yuhara's fingers twitch unconsciously. For an instant, he felt as if his left hand had developed a mind of its own. Fortunately, the illusion vanished as quickly as it appeared.
When Yuhara's fingers began flailing uncontrollably like octopus tentacles, Tigo instinctively felt a simultaneous physical and psychological discomfort. Just as she was wondering whether she should strike, Yuhara's left hand thankfully went still again.
A cause for celebration. Otherwise, Yuhara would have lost part of his body.
Yuhara tried moving his left hand. At that moment, his palm felt as if he had just applied a layer of medicated oil to it, leaving it cool and tingling.
But it was not medicated oil stimulating him. It was Nature Energy.
Just as Yuhara had expected, no problems arose during the experiment. However, he did not rush to declare it a success. Only after a full day and night had passed, with the condition of his hand remaining stable, did he finally believe the experiment had succeeded.
The next afternoon, Yuhara undid the technique on his hand and prepared to officially "work on" himself. This time, he no longer needed Tigo's help... There was no point in helping him cut off his head.
His idea was to set up Cursed Seal-style Nature Energy sealing formations along the main meridians on the axis of his torso. When his Chakra flowed through these sealing formations via his meridian system, it would naturally mix with the Nature Energy and carry it along, allowing him to wield the power of Nature Energy when using techniques.
Put simply, he was only digging a few pits in his body to gather and store the Nature Energy that had originally been scattered around. In reality, however, this was anything but simple. An amateur who knew little about Chakra or the human body was suddenly preparing to tamper with his own meridian system...
All one could say was that if you didn't court death, you wouldn't die.
Digging pits was a technical job. Yuhara could not casually choose a spot as he had in the previous experiment. He had to determine the positions of the seals scientifically and rationally.
If Yuhara had a Byakugan, everything would have been easy. Unfortunately, he did not, so he could only repeatedly circulate high-intensity Lightning Release Chakra through his body, exceeding his own limits, in order to determine the "widest" and most suitable locations within his meridians.
After several tests, Yuhara decided to place seals at six key acupoints along the main meridian at the axis of his torso: Xuanji, Zigong, Shangwan, Juque, Shenque, and Shimen. He decided to call them the Six Rulers Seal, or the Six Rulers Technique.
Out of caution, and considering his own weak Chakra capacity, Yuhara decided to set up the sealing techniques one by one. Thus, it took him a total of ten days to complete them all... If a shinobi from the Hyuga Clan had been observing him at that point, they probably would have seen a strange "candied hawthorn skewer" spectacle running down his torso.
Through the Six Rulers Technique, Yuhara achieved breakthroughs in three areas. First, he could adjust the "output power" of the Nature Energy by controlling how tightly the seals were closed, allowing him to effectively control the strength of his techniques.
Second, the Six Rulers Technique gave Yuhara two ways to use Nature Energy. Besides adding it to his Chakra meridians, he could also release the Nature Energy directly through his flesh, thereby activating Cursed Seal Mode Loss Technique.
Yuhara immediately gave it a try. When he released the Nature Energy within his body, dark-red patterns indeed surfaced across his skin.
As for the Cursed Seal and Nature Energy, the version Yuhara used was too outdated, so he would not undergo the so-called second-stage transformation. However, if one compared their physical abilities alone, Yuhara in this state far surpassed the complete transformations of the Heavenly Cursed Seal and Earthly Cursed Seal.
When he underwent Orochimaru's experiments, he had experienced an extremely intense "transformation." His current state was a humanoid form forcibly compressed back into shape. In other words, if Yuhara switched states normally, he should transform into a six- or seven-meter-tall monster. Yet that change remained confined to his original body size. Therefore... in the Blood Loss state, Yuhara's body had an astonishing mass.
Besides these two points, there was an even more important third one. Using the Six Rulers Technique as a foundation, Yuhara managed to develop another ninjutsu.
"Give it a try? Of course I'll give it a try... After all, it's Kaio-ken."
Thinking this, Yuhara first undid the Blood Loss Technique, then slowly closed his eyes.
At his side, Tigo could only feel the Chakra within Yuhara rapidly, unnaturally, and exponentially growing stronger.
Black metallic patterns climbed across Yuhara's body. Then...
Blinding lightning appeared around him. At the same time, an ear-piercing, high-frequency vibrating sound reached Tigo's ears, like...
Thousands of birds crying out together.
Yuhara called this Kaio-ken-like technique the Arc Gradual Sevenfold Rhythm.
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