The entire world was in turmoil because of Hui.
Yet the very person who caused this upheaval, Hui, paid it no mind.
He was searching for the perfect location to set up a teleportation array.
This would serve as the base for the Sage Shinobi World in the Pirate World, its landing point, a beginner's village of sorts.
Thus, choosing the right place was quite important.
Finally, Hui's gaze landed on a particular region.
The Calm Belt.
The Calm Belt was a strip of sea bordering both sides of the Grand Line, effectively sandwiching it in the middle.
This sea was characterized by its absolute stillness, with no wind, no currents, just a vast expanse of motionless water.
Most pirate ships relied on sails powered by the wind. Once trapped in the Calm Belt, they would lose all mobility and become stranded.
For pirates, this was practically an unpassable danger zone.
Moreover, the Calm Belt was home to an abundance of massive Sea Kings, making it even more dangerous.
Because of the Calm Belt's existence, pirates from the Four Seas had to pass through Reverse Mountain to enter the Grand Line.
And in order to reach Laugh Tale, they had to navigate the entire Grand Line in sequence.
Notably, Impel Down, the deep-sea prison, and Amazon Lily, home to the Kuja, were both located in the Calm Belt.
This was the perfect location Hui had been searching for.
For the people of the Pirate World, the Calm Belt was undoubtedly a hazardous place.
But for the people of the Sage Shinobi World, it was the ideal beginner's village.
After all, they did not fear the ocean, they could even walk on water.
Moreover, their ships had long since evolved into powered vessels, leaving the era of sailing ships behind.
Thus, the only real threat the Calm Belt posed to the Sage Shinobi World's people was the Sea Kings.
Since he had decided on the Calm Belt as the site for the teleportation array, Hui wasted no time.
He quickly located a suitable island.
The island was neither too large nor too small. It had lush forests, clear mountains and rivers, and abundant wildlife.
At the heart of the island, a vast open clearing had already been prepared.
Standing at its center, Hui reached into his spatial pouch and retrieved a teleportation disk.
The disk was massive, with a diameter of two meters.
Its surface was engraved with intricate patterns, imbued with profound and mysterious spatial techniques.
This teleportation disk had cost Hui a great deal of effort to craft.
After all, it was meant to link two entire worlds together.
"Let's hope it works on the first try."
Hui murmured to himself.
This was an attempt to bridge the vast spatial distance between two entirely separate worlds, a distance so immense that even he wasn't entirely confident it would succeed on the first attempt.
After carefully placing the teleportation disk on the ground, Hui activated it.
Then, he simply waited.
If this teleportation disk successfully linked to the one in the Sage Shinobi World, a specific indicator would light up.
Ten minutes passed.
An hour.
Three hours.
Ten hours.
One day.
Three days.
Five days.
Hui remained standing beside the teleportation array disk for five entire days.
His heart remained calm, unwavering.
He did not feel disappointed that there had been no response for five days, nor did he show the slightest impatience.
His emotions seemed to have grown even more subdued, or rather, his emotions had become even more stable.
Then, at a certain moment, a slight smile appeared on Hui's lips.
The teleportation disk lit up.
That meant the two worlds' teleportation arrays had successfully linked!
"Let's test how much energy it requires."
Hui muttered.
Stepping onto the teleportation disk, he began channeling energy into it.
This teleportation disk was different from the first one he had crafted.
With this one, once sufficient energy was injected for a two-point transfer, a second indicator would light up.
Then, at a certain moment, the second light turned on.
"A Seventh-Tier Sage's worth of energy? That's quite a lot."
Hui murmured, his brows slightly furrowing.
A First-Tier Sage had energy equivalent to three ordinary Chūnin.
A Second-Tier Sage had three times the energy of a First-Tier Sage, roughly the equivalent of an Elite Jōnin.
A Third-Tier Sage had five times the energy of a Second-Tier Sage, reaching the level of an ordinary Kage.
A Fourth-Tier Sage had ten times the energy of a Third-Tier Sage.
A Fifth-Tier Sage had twenty times the energy of a Third-Tier Sage, twice that of a Fourth-Tier Sage.
A Sixth-Tier Sage had twice the energy of a Fifth-Tier Sage, forty times that of a Third-Tier Sage.
A Seventh-Tier Sage had twice the energy of a Sixth-Tier Sage, eighty times that of a Third-Tier Sage.
An Eighth-Tier Sage had ten times the energy of a Seventh-Tier Sage.
In other words, an Eighth-Tier Sage had 800 times the energy of an ordinary Kage!
Now, a single cross-world transmission between the two realms required the energy of a Seventh-Tier Sage.
That was far too much.
After all, up until now, no one in the entire Sage Shinobi World had reached the Seventh-Tier Sage level, not even Uchiha Madara.
At present, Madara was only a Sixth-Tier Sage.
"But it doesn't matter. It's not like the entire Sage Shinobi World is planning a full-scale invasion of this planet."
Hui muttered to himself.
His figure gradually became translucent.
Then, in an instant, he transformed into a streak of light and vanished from the spot.
…
The teleportation process took a full five days.
When Hui reappeared, he had returned to the Sage Shinobi World.
Who could have imagined?
The very god-like figure who had shaken the entire Pirate World with his earth-shattering actions had, in just five short days, traveled to another world, returning as the Sage of the Shinobi Realm.
Upon his return, the first thing Hui did was go home to see Tsunade.
After another round of intimate affection, he finally headed to the research base to find Orochimaru.
When Orochimaru saw the thirty Devil Fruits that Hui had brought back, his eyes gleamed with excitement.
Without hesitation, he threw himself into researching them.
After handing over the Devil Fruits to Orochimaru, Hui went to look for Madara.
He assigned him a mission, to find the whereabouts of Ōtsutsuki Isshiki at all costs.
Hui had decided that it was time to eliminate Ōtsutsuki Isshiki once and for all.
Since he would be traveling back and forth between the Pirate World and the Sage Shinobi World for an extended period, leaving a potential threat lurking within his home territory was out of the question.
After tasking Madara with finding Isshiki, Hui sought out Ōtsutsuki Kaguya.
Kaguya's Amenominaka technique contained highly advanced spatial manipulation methods.
Hui intended to learn it.
Unfortunately, this spatial technique was extremely difficult, even for him.
It was impossible to master in a short amount of time.
Thus, he could only study it whenever he had free time.
Aside from refining his spatial manipulation skills, Hui began preparing for another major undertaking.
He had to determine the first group of Sage Shinobi World warriors who would enter the Pirate World.
This was one of the key purposes behind constructing the space teleportation arrays between the two realms.
Hui wanted to train and temper the Sage Shinobi World's elite young talents.
For instance, Kakashi's generation.
In truth, the most suitable age group for this trial should have been Minato's generation.
However, Minato's generation of talented individuals was simply too exceptional.
Take Nawaki, for example.
If he were to enter the Pirate World, his strength would immediately be among the top tiers.
There would be no real challenge for him and he would have nothing to temper himself with.
Unless…
"Revolutionary Army leader… Nawaki?"
Hui muttered to himself.
Suddenly, he realized, it wasn't an impossible idea.
If Nawaki were to enter the Pirate World and establish a Revolutionary Army, its goal would be to overthrow the World Government.
That mission… seemed like an excellent way to train him.
After thinking it over, Hui nodded to himself.
In his mind, he had already placed Nawaki on the list for the first group.
Since he thought of Nawaki, it was only natural to think of Minato.
Minato's strength was also extremely formidable.
If he were to enter the Pirate World, he too would easily rank among the strongest.
However, the Pirate World offered little to challenge him.
Other than Haki, which could be useful to him, there wasn't much he needed to learn from that world.
As for Haki, Hui himself had already mastered it.
He planned to optimize it and then introduce it into the Sage Shinobi World.
Besides, Minato was already preordained as the next leader of one of the Five Great Regions.
So, he wouldn't be going.
Now the question was, who else should be chosen?
Hui fell into deep thought.
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