Visions Inspired by the Yin Seal (Seeking Recommendations)

There was no doubt that Hard Vortex Tornado had been successfully developed, but it clearly had a huge flaw: its stability was terrible. Once the technique took shape, it had to be thrown out immediately, or the user would inevitably become a target of the attack as well.

Of course, that did not matter if it was cast with a Shadow Clone!

"Gengetsu, without a doubt, this is an S-rank Water Release ninjutsu. But unfortunately, this technique doesn't suit me!"

Minato smiled. Though he spoke of regret, there was not the slightest hint of disappointment on his face. In recent real combat, he had already found his own unique fighting style. Flying Thunder God combined with the Rasengan was enough!

Gengetsu also knew that this technique had considerable flaws. After thinking for a moment, he said, "Brother Minato, I have another idea. Form a vortex tornado outside the body. That way, whoever stands at the center of the tornado won't suffer any harm. This technique would be suited for situations where you're surrounded. It can be used for defense, or as a wide-range offensive ninjutsu to break through an encirclement!"

This idea had suddenly occurred to him from a scene in the original work, when the Third and Second Hokage had fought and the Second Hokage used Water Release.

Minato fell into thought after hearing that. Only after a moment did he say, "Condensing a vortex tornado outside the body not only consumes far more Chakra, but also increases the difficulty of Chakra control exponentially. It's much harder than the previous technique!"

"I know, but we can try it!"

Gengetsu nodded, immediately having a Shadow Clone flash onto the river's surface.

Clap!

The Shadow Clone pressed its palms together, and the moisture around its body rapidly condensed, forming a water vortex that spun around it.

But that was still not enough. It was far from forming a Water Tornado.

Failure after failure, Gengetsu used Shadow Clones to try again and again.

Suddenly, the Shadow Clone on the river let out a roar. The water vortex outside its body immediately swelled and expanded upward, forming a Water Tornado that was narrow at the bottom and broad at the top.

Rumble!

At that instant, the water both upstream and downstream was swept up by the Water Tornado. The range of the ninjutsu abruptly expanded, covering an area three to four hundred meters in diameter in the blink of an eye—an even greater range than the Hard Vortex Tornado Minato had used earlier.

"What an astonishing technique!"

Minato, standing far away atop a treetop, was rather startled.

Rumble!

The Water Tornado collapsed, turning into a massive torrent that surged in every direction. Though the Shadow Clone was soaked from head to toe, it was unharmed.

"It worked!"

Gengetsu could not help laughing. One technique, two methods of use—one for close combat, one for ranged combat, with both offense and defense covered!

Moreover, it seemed that this technique was not limited to Water Release. Wind Release could likewise create massive tornadoes.

No! Not just that!

If four Shadow Clones cast it at once, using four Water Tornadoes or wind tornadoes to attack an enemy in the middle... that scene, that feeling... Gengetsu's imagination ran wild again.

The month of rest Tsunade had given him quickly passed. That night, Gengetsu held the Sealing Scroll recording the Yin Seal and read it carefully.

Yes, he had finally obtained the method for cultivating the Yin Seal from Tsunade.

Without question, men could cultivate this technique as well. Though men and women had different bodily structures, most of their anatomy was still the same. The original purpose behind creating the Yin Seal was no longer known. For Tsunade, however, it was meant to store Chakra that was not normally used, then employ it to cast the forbidden technique Creation Rebirth and the Strength of a Hundred Sealings Technique!

In the original work, Tsunade had even endured Madara Uchiha, who possessed the Rinnegan, though she had nearly been beaten to death.

The reason Gengetsu had always wanted this technique was that, looking across the entire Naruto series, the Yin Seal seemed to be the only technique capable of storing Chakra within the human body!

And the method of extracting Chakra seemed to have already doomed ninja to a slow suicide. Like a car, once it ran beyond a certain amount of time, it would inevitably be scrapped.

In the original work, only Kaguya Otsutsuki and the three Sages were exceptions. Even beings as powerful as the Sage of Six Paths and Hamura Otsutsuki could not escape it.

As a transmigrator, Gengetsu would not limit his vision to the current Shinobi World. How could he possibly lack the ambition to uncover the secret of immortality?

Of course, his immortality would be entirely different from Orochimaru's!

Gengetsu had thought carefully about this matter before.

First, regarding the source of Chakra, Kaguya Otsutsuki, the God Tree, and the Sage of Six Paths were three things that could not be avoided no matter what.

Leaving aside the origins of Kaguya Otsutsuki and the God Tree, the first question was this: did Kaguya Otsutsuki possess Chakra before she ate the God Tree's fruit?

Gengetsu believed that she probably did. Kaguya Otsutsuki had been born with the Byakugan. And even if she did not initially possess Chakra, perhaps she possessed some other energy similar to Chakra—perhaps internal energy, perhaps true essence, perhaps Buddhist power. After all, Chakra actually originated from India. In any case, she was no ordinary person.

Kaguya Otsutsuki only became immensely powerful and awakened the Nine Tomoe Rinne Sharingan after eating the God Tree's fruit. Without question, the God Tree's fruit contained an incomparably vast amount of Chakra.

Then came the question: where did the God Tree's Chakra come from?

Gengetsu vaguely remembered that there seemed to have been a scene in the original work. Gamamaru of Mount Myōboku—the Great Toad Sage—had once said that because of the God Tree, Mount Myōboku's Natural Energy was continuously decreasing.

Whether or not his memory was mistaken, Gengetsu felt that it made perfect sense for the God Tree's Chakra to originate from Natural Energy.

This could be supported from another angle: the Nine-Tails within Naruto had once condensed Chakra.

Human Chakra was formed from the combination of spiritual energy and physical energy. But Tailed Beasts were actually collections of Chakra, without true physical bodies. Clearly, when the Nine-Tails condensed Chakra, it drew Natural Energy from nature.

The Sage of Six Paths had founded the Ninshu Sect, not Chakra itself. He had merely created the cultivation system through which humans cultivated Chakra, and thus ninja came into being.

The original work said that the Sage of Six Paths had distributed Chakra to others. Gengetsu believed that, when the Sage of Six Paths first sought to promote the Chakra cultivation system, he had given some of his own Chakra to a portion of people so they could more directly experience this energy called Chakra and learn how to extract it.

Just like passing on one's cultivation!

Therefore, setting aside the point that Kaguya Otsutsuki might have possessed Chakra naturally, Chakra in Naruto actually originated from Natural Energy in the natural world.

This could also be corroborated by the Three Great Sacred Places. The Three Great Sacred Places had most likely already existed before Kaguya Otsutsuki ate the God Tree's fruit, and they could even use Sage Art.

Hamura Otsutsuki had been saved by Gamamaru's Sage Art talisman!

In summary, Kaguya Otsutsuki's immortality came from the God Tree's fruit, while the God Tree's fruit was formed when the God Tree absorbed Natural Energy. Thus, the key to eternal life lay in Natural Energy.

And at present, the only reliable path to Natural Energy was Sage Art. That was also one of the reasons Gengetsu had brought Tenten home every day back then.

So now, some of you might be asking: what the hell does this have to do with the Yin Seal?