After delivering the agreed-upon supplies and weapons via the summoning scroll, Satsuki sent Kiyomaru to escort the Senju clan's envoy away.
She herself did not see them off in person, but instead turned and entered her secret laboratory.
With the Tenseigan in her possession, she now held the highest-level access to the Hamura Ōtsutsuki clan's legacy.
Previously, the presence of the Giant Tenseigan meant that although she possessed much of the inheritance, she lacked the authority to activate or use it. But now, after two weeks of effort, her laboratory had expanded considerably.
The most obvious change was the internal space.
From the outside, it looked unchanged, but once inside, the area was dozens of times larger than before.
This was thanks to the Giant Tenseigan's spatial anchors and her own understanding of space.
And finally, there was her grasp of the conversion rules between jutsu formulas and their actual effects from studying the summoning scroll.
Other improvements in detail and research efficiency were more tedious to describe, but compiling and organizing all of it had cost her a good deal of chakra.
More work means activating more puppets, she thought helplessly. Naturally, there were also experimental applications related to living organisms.
After obtaining the Tenseigan, Satsuki had attempted to search the world for the so-called Hyūga clan, since she had promised the lingering spirit of Hamura Ōtsutsuki within the Tenseigan to watch over the branch on Earth.
But after spending two days surveying the entire shinobi world, she found no trace of anything related to the Byakugan.
The Giant Tenseigan's search was a high-level conceptual search—if it failed to detect something, it meant it did not exist in this world.
In other words, the Hyūga clan simply did not exist in this shinobi world.
When she reached this conclusion, Satsuki was genuinely surprised.
In the Naruto world, the Hyūga were not a front-line clan, and in fact, often seemed a tragic example—after all, Neji Hyūga was the only one among the Konoha 11 to die.
But as a clan, especially compared to fellow Ōtsutsuki-bloodline ninja clans like the Uchiha, Kaguya, Senju, and Uzumaki, they quietly thrived.
Hinata Hyūga even became linked romantically to the future Seventh Hokage, Naruto Uzumaki, and had ties to Toneri Ōtsutsuki.
One could say that until the Ōtsutsuki main family's arrival, the Hyūga's position was unshakable.
So, since such an important clan didn't exist in this world… why not create it herself?
Especially when she happened to notice the Ōtsutsuki clan emblem—the sun-like design struck her instantly.
Hyūga… it's practically destined for this, she murmured.
Naturally, the plan was set.
But once decided, even with Hamura's legacy backing her, Satsuki immediately realized how thorny this research would be.
First and foremost was her extremely limited research on the human body.
I've only been in this world for three years, and my early focus was entirely on developing ways to protect myself.
From puppet techniques to wireless transmission technology, even to the now-abandoned concept of the Eight Gates human-puppet hybrid, everything was aimed at survival.
This meant her early research had been narrow and utilitarian.
The upside was fast results—before acquiring the Tenseigan, these techniques were her lifeline.
The downside was a very thin foundation. The moment she faced research beyond her knowledge base, she was at a loss.
A routine check of her experimental results—over three thousand cell culture dishes—showed all had perished according to the instruments' scans.
She compiled adjustments from her previous experiments along with this latest report…
Satsuki realized that the cause of death for these cells was not that they were too fragile.
On the contrary, these cells—derived from her own body—were too strong. Even with her repeatedly optimized culture medium, there still wasn't enough energy to sustain their growth.
After a certain degree of division and proliferation, the energy supply became insufficient, leading the cells to devour each other until all perished.
She had even tried injecting Tenseigan chakra into some cultures to promote growth, but unfortunately, these cells simply could not bear Tenseigan chakra.
The reason Satsuki herself could awaken the Tenseigan so smoothly was not only because her body had reached the necessary level and her eyes possessed sufficient purity.
In truth, the "Strongest System Across All Worlds" she carried had played a decisive role during that fusion.
It had remained silent most of the time, but in that critical moment, it had helped her make the leap through the dragon's gate.
So when even Tenseigan chakra could not serve as an energy source, Satsuki found herself at an impasse.
What she now urgently needed was a stable, controllable, and not overly powerful source of energy.
The tailed beasts were her first thought, but she quickly dismissed the idea. Their chakra possessed unique properties and its own consciousness. Once contaminated by it, it could easily assimilate her and affect the expression of her genetic sequence.
The Hyūga were born with the Byakugan—a bloodline limit of immense value. If it were polluted by tailed beast chakra, the loss would outweigh the gain.
Her next target, however, was far more suitable.
In the original movie, deep within the Rōran ruins in the Land of Wind lay the Ryūmyaku essentially an almost inexhaustible source of chakra. Inscribed with space–time formulas, it even had the ability to allow one to travel through time and space.
Both traits intrigued Satsuki—especially the latter.
"Considering the time period, whether Rōran is even in ruins yet is uncertain. In the anime, the ancient kingdom of Rōran displayed technology and architecture far beyond the mainstream era of Naruto."
The difference was vast: Rōran resembled a modern industrial society, whereas most of the shinobi world remained in an agricultural age.
But for now, the priority was finding Rōran's location.
At this thought, an awe-inspiring energy form of the Candle Dragon manifested around her.
This was Satsuki's Judgment of the Ten Kings: Aragami Form.
She could now enter this state at will. Once she did, her combat power leapt directly to the Six Paths level. With the Giant Tenseigan's support, it was essentially an unlimited Tenseigan Chakra Mode.
The Candle Dragon's form, after prolonged contact with the Giant Tenseigan, had reached near-perfection—almost indistinguishable from a true dragon.
Satsuki directed the Candle Dragon to retrieve the Giant Tenseigan, then poured her chakra into it. After authorizing access, she began inputting all information she had about the Ryūmyaku.
Her knowledge was limited—only that it lay somewhere in the Land of Wind, northwest of her current location.
Such a unique cluster of buildings, isolated in the desert, should be a conspicuous target.
Sure enough, after a few minutes of searching, the Giant Tenseigan detected several building clusters in the desert of what would later be known as the Land of Wind.
However, their appearance and scale were far less impressive than in the anime—no towering spires, nothing so grand.