As Shinsuke spoke, the system materialized and began calculating the rewards.
[Ding!]
A crisp notification tone rang out in Shinsuke's mind.
[Congratulations, Host, on ascending to Clan Head of the Uchiha and achieving the core milestone: Unification of the Uchiha!]
[Through uncontested force and decisive leadership, you have earned the absolute allegiance of the entire clan and seized full command of the Uchiha Clan's will!]
[Core milestone rewards are now being distributed!]
The instant those words fell.
A vast and overwhelming power beyond all description surged from the deepest reaches of Shinsuke's consciousness!
The enhancement had begun.
First to be transformed were Shinsuke's Mangekyō Sharingan.
The Mangekyō Sharingan was the source of the Uchiha Clan's power and only a beginning, and now the system's enhancement was directed at those very eyes.
The faint burning sensation and growing dimness that had once followed every use of his ocular power were at this moment being swept away entirely by a warm and boundless energy.
Shinsuke's Mangekyō Sharingan spun at high speed, broke apart, and then reforged and reconstructed itself in a manner more profound and perfect than before.
It was a transformation of the most fundamental kind.
The ocular power that had been considerably depleted, along with the slight deterioration in his eyesight, was fully restored.
In their place came a sensation of fullness that was entirely new, one that would never run dry.
Shinsuke did not even need the system's notification to understand.
This was the Eternal Mangekyō Sharingan.
Ordinarily, advancing a Mangekyō Sharingan to the Eternal Mangekyō required fusing it with the Mangekyō Sharingan of a close blood relative.
But Shinsuke had the system, and through the system's power, he advanced directly to the Eternal Mangekyō without needing another pair of eyes.
[Reward One: Eternal Mangekyō Sharingan has been distributed!]
[Host will no longer face any risk of blindness, and the upper limit of ocular power has received an epic-tier enhancement!]
A detailed breakdown of his ocular techniques followed immediately.
[Ocular Technique Enhancement: Temporal Rewind!]
[Used on an enemy: while at full ocular power, forcibly rewinds the target's timeline by 2 seconds; can be used six to seven times per full charge.]
[Used on self: while at full ocular power, instantly restores all injuries, chakra, and every negative status effect; can be used three times per full charge.]
[Note: Expended ocular power recovers slowly through rest.]
Yet this was only the beginning.
The system's rewards were not finished.
The very moment the Eternal Mangekyō fully stabilized, an entirely different force began to rise within Shinsuke.
A surging and powerful life force began to well up inside him.
A tremendous power filled every part of Shinsuke's body.
Shinsuke felt as though his body, down to every single cell, was rejoicing.
His chakra was no longer a stream flowing within him but had transformed into a vast and boundless ocean.
Muscles, bones, chakra pathways, all were tempered and refined by this force, growing tougher and charged with explosive power.
[Reward Two: Sage Body (Initial Stage) has been distributed!]
[Host has received the purest life force and chakra of the Senju Clan, which will continue to grow stronger over time as it develops further!]
The Sage Body!
Though the fusion was still in its initial stage, the boost it granted Shinsuke was already considerable.
The most immediate change was in his chakra, as Shinsuke's chakra reserves were now capable of matching the great majority of the Tailed Beasts.
It was not over yet, as the rewards continued.
Boom!
An invisible and terrifying aura erupted from Shinsuke as its epicenter.
The Susano'o forged from lightning and flame that stood within Shinsuke's consciousness let out a roar that shook the heavens and the earth.
The armor covering it shattered piece by piece, yet its frame expanded with wild and relentless growth.
Fifty meters, one hundred meters, one hundred and fifty meters, and still higher!
Across the skeletal frame, flesh and chakra pathways spread at tremendous speed, ultimately forming a set of tengu armor that resembled the battle raiment of a divine warrior.
At its back, an enormous pair of wings unfurled, vast enough to blot out the sky.
[Reward Three: Susano'o development progress has increased; the Fourth Form, Complete Body Susano'o, has been unlocked!]
Its power utterly eclipsed the third stage, a strength without precedent.
The fourth stage, Complete Body Susano'o, was overwhelmingly powerful.
This was a force that could overawe the entire shinobi world on the strength of its sheer size alone.
Shinsuke quietly took in the energy surging within him, energy capable of shattering heaven and earth, and his heart surged with feeling.
[System Notice: The Eternal Mangekyō Sharingan has achieved initial fusion with the Sage Body, granting a fundamental enhancement to ocular power.]
[Host is now immune to the great majority of conventional genjutsu, and resistance to mental attacks has been substantially increased.]
A thought stirred in Shinsuke's mind.
He could sense clearly that his two ocular techniques, Temporal Rewind and Technique Amplification, had each undergone a qualitative leap.
The potency of the techniques had grown by several times over.
Shinsuke slowly opened his eyes.
The Eternal Mangekyō emerged in full.
Shinsuke's current power had already far surpassed every definition of a "Kage."
Quasi-Super-Kage.
That was the most precise and fitting assessment the system offered.
Shinsuke raised his hand, and a translucent panel materialized before him.
[Uchiha Shinsuke]
[Power Level: Quasi-Super-Kage (The fusion of the Sage Body and the Eternal Mangekyō Sharingan has given you the foundation to defeat any Kage-level combatant)]
Note: The reason for the Quasi-Super-Kage rating is that the Eternal Mangekyō was only just acquired and the Sage Body is still in its initial fusion stage, placing overall power in a transitional phase; a breakthrough to full Ultra-Kage will follow before long.
[Mastered Skills:]
[Ninjutsu: Full Mastery of Fire Release, Lightning Release: Chidori, Lightning Release Chakra Mode (Fully Mastered, surpassing even the Raikage's Lightning Release Chakra Mode), Lightning-Fire Dragon Breath (S-Rank), Lightning-Fire Rasengan]
[Physique: Sage Body (Initial Fusion)]
[Genjutsu: Immunity to Conventional Genjutsu, Genjutsu Reflection (Enhanced by Eternal Mangekyō), Sharingan Genjutsu]
[Kekkei Genkai: Eternal Mangekyō Sharingan]
[Ocular Techniques: Temporal Rewind (Enhanced), Technique Amplification (Enhanced), Complete Body Susano'o]
[Clan Standing: Uchiha Clan Head (Absolute Authority)]
[Number of Loyal Clan Members: 95% (Combat Personnel)]
[Overall Clan Strength Assessment: Peak Kage Level]