It was as if the island existed within an invisible bubble, guarded by Reiji's own will.
However, Reiji was not a fool who relied solely on theory.
He understood that great power could easily be misinterpreted as a threat.
For that reason, from the very beginning, Reiji conducted a series of rigorous tests.
He used several lowly criminals—people who had already been sentenced to death—to test the limits and sensitivity of the Fuinjutsu.
Reiji observed carefully whether the protective seal would act aggressively, such as absorbing the enemy's chakra or what was perceived as an enemy until it was drained dry, killing the target without warning.
Because if such a thing were to happen, the Shinobi World might see the Uzumaki Clan as a group of bloodthirsty monsters, rather than ninjas trying to protect their island.
Fortunately, from all the trials conducted, the results were consistent.
There were no deviations.
The enemy's chakra was indeed repelled, but not destroyed.
The Fuinjutsu acted only defensively, not offensively.
Everything was going according to the initial design.
Even so, Reiji was never truly at ease.
Tests were still tests—conducted under controlled conditions.
But a real attack? That was another story.
And now, after witnessing a massive assault from three villages fail completely without causing any disruption to the protective system...
Only then could Reiji take a deep breath, and for the first time that day, feel truly calm.
...
...
...
Reiji stepped out of the Breeding Development Room, the door sliding slowly behind him, leaving a faint echo of light metal.
The moonlight at night struck Reiji's face, filtering through the thin mist that hung over Uzushio Village—a mist that was always present, but today felt heavier, as if hiding something behind its folds.
Reiji's footsteps echoed clearly along the village's main road amidst the silent buildings.
The stone path, usually filled with the laughter of children and the conversations of the villagers, was now empty, silent like a graveyard too neatly kept.
The Uzumaki whirlpool flags at every corner of the walls no longer fluttered cheerfully—they hung limply, almost motionless, as if aware that the village was quietly holding its breath.
Not a single figure was visible.
Even the sound of seabirds had vanished, as if the creatures of nature understood that today was not an ordinary day.
Although the Island's Protective Fuinjutsu had been activated—a massive seal layer surrounding the island like an invisible dome—none of the villagers felt completely safe.
A sudden attack from three major villages, with full force, was a nightmare that even the older generation had never experienced.
This was the first time the seal had been tested in the midst of full-scale warfare.
Ordinary citizens had been moved underground—to an old shelter built from the time before Reiji was born.
The stone corridors were damp, dark, and silent.
The walls were filled with ancient carvings, remnants left by ancestors who had prepared the place for the worst moments.
And now, that place was being used again.
There was fear in their silence, but also trust.
Trust in one thing: that the protective seal would hold.
Reiji continued walking.
The sea breeze carried a sharp scent of salt, sneaking beneath Reiji's clothing.
Reiji's eyes were fixed straight ahead, his expression calm, but his gaze was sharp, full of calculation.
The boy—who to many was just an unknown child, but Reiji had another identity that only a few knew.
After passing several blocks, Reiji finally arrived at the main complex—the residence of Keito.
Unlike the quiet atmosphere of the village, this place was full of life.
Dozens of ninjas stood guard in formation, their faces tense, eyes sweeping every corner, hands ready to touch their weapons at any moment.
------------------------------
[Announcement: A New Novel Has Been Added!
The Puppet Maker in the World of Naruto
A man who is a scientist, researcher, and expert mechanic in robotics dies in a massive explosion that occurs in his laboratory while developing an advanced robot project. However, instead of experiencing death as he thought, the man awakens in another world—a strange place with vast stretches of desert.
There, the man is surrounded by people who can jump high, calling themselves ninjas. The confusion he initially felt grows as he realizes that this world is not unfamiliar to him. This is the world of Naruto! However, there is one thing that surprises him.
"Isn't this Sunagakure? Why am I not in Konoha? This poorest village... Oh my God, this is serious!"
Now, in the midst of a new life filled with danger and uncertainty, the scientist must find a way to survive in Sunagakure, a harsh place full of limitations. With his robotic knowledge, can the man change his fate in this ninja world, or will he fall along with the village?]
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