Within a Shadowed Cave
Kaito sat cross-legged in the deep hollow of a desolate mountain cave, far from watchful eyes. The walls were damp and cold, echoing with faint drips of water. The earthy scent of moss and old stone filled the space. A faint shimmer of chakra lit the cavern dimly.
He wasn't ready to regroup with Tekka and the rest—not yet.
There was power to digest.
"Claim mission rewards," he commanded.
The system answered instantly:
[Mission 3: Lead the tribe to resist and demonstrate the true power of Uchiha - completed!]
[Initiating task reward settlement...]
[Congratulations to the host for obtaining: Perfect Sage Mode; Mystery Scroll x1]
A shimmer of light formed, and with a subtle hum, a black scroll materialised in Kaito's open palm.
And then—knowledge.
A torrent of information surged into his mind, vivid as memory, potent as instinct. The technique. The cultivation path. The method of controlling natural energy. It wasn't like the Toads, Snakes, or Slugs. This was... purer. Cleaner. More refined.
Kaito's eyes sparked with golden light.
"So this... is the cultivation method for Perfect Sage Mode. Let's give it a try."
He gently set the scroll aside and closed his eyes.
Drawing in a slow breath, Kaito allowed his senses to extend outward, feeling the life force in the roots, in the moss, in the wind. With the system's precise method guiding him and his Mangekyō's enhancements amplifying perception, it didn't take long.
He felt it—natural energy.
And then... it flowed into him.
His chakra network pulsed.
Sage energy and chakra harmonised without rejection, without resistance. His cells didn't calcify. His skin didn't petrify. Instead, a golden aura shimmered faintly around his closed lids.
When he opened his eyes, they gleamed with refined energy.
"Sage Mode..."
He whispered it like a name long forgotten. Power hummed beneath his skin. It wasn't just chakra—it was balance. Stillness. Harmony.
"Let's test this."
In a flash, he vanished from the cave.
Outside, he landed on rocky terrain. He formed hand seals with fluid precision, each gesture a blur.
"Sage Style: Inferno Celestial Fireball Jutsu!"
From his mouth erupted a fireball nearly twenty meters wide, its colour no longer red, d—but gold tinged with crimson, roaring like a miniature sun.
It struck a cliff wall.
Boom!
The explosion rocked the mountain. Fire and molten rock splashed across the terrain, obliterating a twenty-meter cliffside and leaving a scorched crater filled with seething magma.
The air turned dry, the heat licking at his face.
Kaito's eyes widened, his breath catching.
"The chakra density... the temperature. It's more than ten times stronger than usual. And it replenishes itself...!"
He stepped back, catching his breath.
It was overwhelming. And exhilarating.
"But I can't get carried away. This was a system-enhanced Sage Mode. Stronger than anything the Three Holy Lands offer. I need to master it."
The Sage Chakra in his body remained full. He felt it draw subtly from the environment—quiet and constant, like a spring refilling a vessel.
"So long as I increase my chakra reserves... I can sustain this Sage Mode indefinitely."
A smirk tugged at his lips.
"Shadow clones will handle the daily training. No problem."
The method from the system didn't just grant Sage Mode—it made it sustainable.
This was no glass of chakra.
He would build an ocean.
And as long as even a droplet of Sage Chakra remained in him, he could activate Sage Mode with a mere thought.
"System-made, huh? You never disappoint."
Satisfied, Kaito released the mode and returned to the cave. The glow faded, leaving behind still intensity.
"Now, the scroll."
He picked up the black parchment and unrolled it with reverence.
[Method of Sharingan Practice: Maximum Level - Eternal Sharingan.]
[Practitioners will be 100% loyal to the host. The host gains the ocular abilities of any practitioner who unlocks their Sharingan.]
[Ordinary Uchiha may begin training at age five.]
[1 year = 1 Tomoe. 3 years = 2 Tomoe. 3 more = 3 Tomoe. Another 6 = Mangekyō. Another 12 = Eternal Mangekyō.]
[Talented Uchiha may progress faster.]
[Until Eternal Mangekyō is achieved, practitioners can only unlock powers one level below the host.]
Kaito exhaled slowly.
In his mind, scenarios formed. Timelines. Power surges. Loyalty forged through blood and discipline. He saw a young Uchiha with potential—awakening eyes like his. He saw a future.
"A path crafted just for them... and for me."
Even an average child could awaken the Eternal Mangekyō in thirty years. But with dedication—and the right bloodline—it could be done in ten. Maybe even eight.
Tekka. Izumi.
With their talent, they could achieve it before the storm arrived.
It was perfect.
"Konoha's fall isn't the end. It's only the beginning."
His ambitions crystallised.
Not just survival. Domination.
Unity.
"To rule the ninja world, I need pillars. My clan will become those pillars."
Kaito smiled.
The scroll was carefully sealed.
"Now... the main event."
He opened his ninja kit.
From within, he retrieved the three-point seal scroll. He unfurled the first segment, revealing intricate sealing marks glowing faintly.
He pressed a hand over it.
"Activate."
Poof!
Four vials materialised in a swirl of smoke and chakra. Inside each: a Sharingan. Two from Fugaku. Two from Shisui.
He stared down at them.
Memories. Power. Legacy.
"System, can you integrate these ocular powers into mine, without replacing my eyes?"
He didn't want transplants. He wasn't desperate. Not yet.
[Confirmed. Absorption method available.]
Kaito smiled with grim satisfaction.
"Let's begin."
He opened the first vial—Fugaku's Sharingan.
The eyes floated, suspended in preserving fluid. Kaito extended a hand.
"Absorb."
Immediately, thin wisps of grey fog began to spiral from the eye, forming into twin misty orbs—Fugaku's ocular essence.
The eyes in the vial dimmed, cracked... and then crumbled into ash.
The grey mist drifted toward Kaito's own eyes.
No resistance.
The moment they touched him, he felt a chilling coolness, a subtle burning, a sudden expansion.
His Sharingan pulsed.
Power surged.
Two new abilities entered his mind—Fugaku's gifts.
"It's seamless. No backlash... just pure enhancement."
Yet, he frowned.
"I didn't hit the limit yet... Then my Sharingan has potential. Let's continue."
He opened the next vial.
Shisui's Sharingan.
A moment later, the second absorption began. The mist—greener, sharper—merged with his own.
And then—
[Detected: Sharingan at bottleneck. Initiate a breakthrough?]
"Breakthrough!"
[Congratulations. Eternal Mangekyō Sharingan unlocked.]
Kaito's eyes flared. His chakra surged. His vision sharpened beyond comprehension.
No change in pattern—because these were his original eyes.
But within them was power.
Chakra burst outward, shaking the cavern.
Kaito's chakra reserves exploded, swelling until he stood on the cusp of godhood.
He had arrived.
Late-Kage level.
No longer just an avenger. Not just a clan saviour.
He was becoming something far greater.
End of Chapter