Six Seven Eight Nine Profound Skill

Yuhara dared to conduct such an experiment, so he must have had a considerable degree of confidence in its success. Fundamentally, what he was trying to do was much simpler than the Cursed Seal. As long as his physique didn't have any problems, the experiment wouldn't either.

Even if it failed, losing an arm wouldn't be an unbearable price for someone like him...

Besides the intense pain.

As someone with metal control abilities, losing a hand wouldn't affect Yuhara's combat effectiveness. In fact, as long as all the surrounding pots and pans were replaced with metal, losing a hand wouldn't even impact his daily life.

What was interesting was that Yuhara had just told Tigo not to push herself too hard, yet the task he was undertaking couldn't be described with the word "pushing." It was extreme.

Therefore, it was natural for Tigo to hesitate.

"Don't worry, it's highly unlikely there will be any problems... To avoid the situation from last time happening again, I need to increase my strength," Yuhara said.

He saw it clearly: if he didn't dare to risk losing an arm now, he might lose his life the next time he went to the battlefield. So, it wasn't that Yuhara was being exceptionally harsh on himself; it was the only way.

No one would save him on the battlefield; he could only rely on himself. After a slight weighing of risks and rewards, Yuhara would undoubtedly proceed without hesitation.

With Yuhara's insistence, Tigo could only stand by his left side, holding her sword.

"Get ready, I'm going to start."

After a final reminder, Yuhara took a deep breath and began to guide his Chakra through the Spell Formula he had drawn on his palm with blood. Stimulated by this Chakra and guided by the Spell Formula, Nature Energy from his body and the surrounding environment began to converge towards his left palm.

Once enough Nature Energy was absorbed, the Spell Formula on his hand began to close.

The powerful and vibrant energy caused Yuhara's fingers to twitch involuntarily. For a moment, he felt as if his left hand had developed a consciousness of its own, but thankfully, this illusion only flashed and disappeared.

Seeing Yuhara's fingers flailing uncontrollably like octopus tentacles, Tigo instinctively felt a dual sense of physiological and psychological discomfort. Just as she was considering whether to intervene, Yuhara's left hand finally quieted down again.

A cause for celebration, otherwise Yuhara would have lost a part of his body.

Yuhara tried to move his left hand. At this moment, his palm felt like it had just been coated with a layer of cooling balm.

However, what was stimulating him wasn't cooling balm, but Nature Energy.

Just as Yuhara had thought, this experiment didn't present any issues. However, he didn't rush to declare it a success. He waited until a day and a night had passed, and the condition of his hand remained stable. Only then did he consider the experiment successful.

In the afternoon of the second day, Yuhara released the Spell Formula on his hand and prepared to begin the formal "construction" on himself. This time, he didn't need Tigo's help anymore... helping to chop off his head would be meaningless.

His idea was to place Cursed Seal-style Nature Energy sealing formulas on the main meridians along the axis of his torso. When his Chakra flowed through the meridian system and passed these sealing formulas, it would naturally mix with Nature Energy, drawing it out. This way, he could also utilize the power of Nature Energy when casting jutsu.

In simple terms, it was just digging a few holes in himself to gather and store the dispersed Nature Energy. But in reality, this was far from simple. It could be said that someone who knew little about Chakra and the human body was suddenly preparing to tamper with their own meridian system...

One could only say, if you don't court death, you won't die.

Digging holes was a skilled job. Yuhara couldn't just pick a random spot like in his previous experiment; he had to scientifically and rationally determine the positions for the seals.

If Yuhara had a pair of Byakugan, everything would be easy. Unfortunately, he didn't. Therefore, he had to use high-intensity Lightning-attribute Chakra, exceeding his limits, to circulate repeatedly within his body to determine the "widest" and most rational positions in the meridians.

After several tests, Yuhara determined six key acupoints on the main meridians along the axis of his torso for placing the seals: Xuanji, Zigong, Shangwan, Juque, Shenque, and Shimen. Yuhara 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 formulas one by one. Thus, it took him a total of ten days to complete all the Spell Formulas... If a Hyuga ninja were observing him at this time, they would probably see a strange "sugar-coated haw" spectacle on his torso.

Through the Six Rulers Technique, Yuhara achieved breakthroughs in three aspects. First, by adjusting the closure of the seals, he could regulate the "output power" of Nature Energy, thereby effectively controlling the power of his jutsu.

Second, with the Six Rulers Technique, Yuhara could achieve two ways of using Nature Energy. In addition to mixing it into the Chakra meridians, he could also release Nature Energy directly within his body, thus activating the Cursed Seal Mode: Blood Loss Technique.

Yuhara immediately attempted it. As he released the Nature Energy from his body, dark red patterns indeed appeared on his skin.

Regarding Cursed Seals or Nature Energy, because the version Yuhara used was too old, he wouldn't undergo the so-called second-stage transformation. However, if only comparing physical abilities, Yuhara in this state far surpassed the complete transformation state of the Heavenly Cursed Seal or the Earthly Cursed Seal.

This was because when he underwent Orochimaru's experiment, a rather intense "transformation" had occurred, and his current state was a compressed humanoid form. This meant that if Yuhara switched states, he should transform into a six or seven-meter-tall monster. However, this change was still confined within his original body size. Therefore... in the Blood Loss state, Yuhara's body mass was extremely high.

Besides these two points, there was a more important third point: based on the Six Rulers Technique, Yuhara was able to develop another Ninjutsu.

"Should I try it? Of course, I should try it... After all, it's Kaio-ken."

Thinking this, Yuhara first released the Blood Loss Technique and then slowly closed his eyes.

Tigo, standing nearby, felt Yuhara's Chakra rapidly, unnaturally, and exponentially increasing.

Then, black metallic stripes climbed onto his body, followed by...

An incredibly dazzling lightning flashed from his body. At the same time, an extremely piercing high-frequency vibrating sound reached Tigo's ears, like...

Thousands of birds chirping together.

Yuhara called this Kaio-ken-like move "Arc Gradual Sevenfold Rhythm."