Synopsis:
Konoha's Beginning: Sign-in for the Rinnegan.
Uchiha Kouki, a normal genin of the Uchiha clan, thought he'd live a simple life. But then he got a Sign-in system.
Sign-in at Kannabi Bridge: Reward - Rinnegan
Sign-in at the Hokage Building: Reward - Flying Thunder God Technique
Sign-in at the Valley of the End: Reward - Sage Body
…
He planned to stay hidden in Konoha until he reached Six Paths level.
Ten years later, Konoha decided to destroy the Uchiha clan, forcing Kouki to act.
Chapter 1: Rinnegan Sign-in
Konoha Year 47.
Kannabi Bridge.
Looking around, there were ruins everywhere, and large pits carved out by powerful ninjutsu littered the ground, some still emitting wisps of smoke.
The cold mountain wind occasionally blew, making the already pungent smell of blood even stronger.
Clearly, a fierce battle had recently taken place here.
On the desolate battlefield, seven or eight figures stood before a pile of rubble made up of massive stones.
These seven or eight figures were all ninjas from Konoha, and most of their clothing bore the insignia of the Konoha Military Police Force.
Indeed, these ninjas were mostly from the Konoha Military Police Force, or more precisely, from the Uchiha clan of Konoha.
The duty of the Konoha Military Police Force was generally to maintain order within the village, but with the Third Shinobi World War raging on, Konoha was facing a severe shortage of ninjas.
Even some Genin who had just graduated from the ninja academy were being thrown into the battlefield, let alone the Konoha Military Police Force.
"Kakashi, is this the place?"
Shisui, the leader of the group, surveyed the surroundings before turning to the non-Uchiha youth standing at the front.
The youth's left eye was closed, and a scar could be seen running across his entire upper and lower eyelid, clearly indicating that his left eye had been blinded by a sharp weapon.
This person was none other than Hatake Kakashi, a student of Namikaze Minato.
Standing next to Kakashi was Nohara Rin, another member of Team Minato.
The third member of Team Minato, Uchiha Obito, was absent, having been buried beneath the rubble before them.
Kakashi nodded. "This is the place, please, everyone, hurry and dig Obito out!"
"Let's move!"
With a wave of his hand, Shisui signaled the Konoha Military Police Force to stop talking and immediately begin moving the stones, diligently digging.
"Seriously? Uchiha Obito just died, and the Battle of Kannabi Bridge just ended? Why did I transmigrate to such an awkward time!"
Unbeknownst to the others, one of the Uchiha clansmen carrying rubble was wearing a pained expression.
This person was named Uchiha Kouki, 12 years old, just graduated from ninja school, with the strength of a Genin, and had not awakened the Sharingan.
He was considered an ordinary Uchiha clansman.
It wasn't apparent on the surface, but in reality, his body had been taken over by another soul just ten minutes prior.
That's right, the current Kouki was a genuine transmigrator.
Before his transmigration, Kouki enjoyed watching anime, and as one of the most popular big three, Naruto was naturally very familiar to him in his past life.
Therefore, despite having only recently transmigrated, Uchiha Kouki was quickly and accurately able to determine the timeline he was currently in.
It was a time of war!
As an ordinary Genin, he was woefully inadequate in such a dangerous world.
"Ding! God-Level Sign-In System successfully bound!"
"The host can sign in at some special locations, and the more special the location, the more generous the rewards."
"Some locations can be signed in repeatedly, while others can only be signed in once. Please explore on your own."
Just as Kouki was carrying stones, a series of mechanical, electronic voices suddenly echoed in his mind.
Kouki was momentarily stunned, before becoming instantly excited.
My cheat has finally arrived!
"Detected a sign-in location. Does the host wish to sign in?"
Immediately afterward, the system's inquiry resounded in Kouki's mind once more.
"Sign in!"
What was there to hesitate about?
Kouki immediately and emphatically commanded the system in his mind.
"Ding! Congratulations to the host for successfully signing in. Reward: Rinnegan!"
Rin... Rinnegan!?
Clang!
The large stone in Kouki's hand slipped and slammed onto the ground, directly crushing his foot, but the immense shock prevented Uchiha Kouki from feeling any pain.
Because at that moment, Kouki was completely dumbfounded.
"Rinnegan! The system is too powerful! The first sign-in rewarded the Rinnegan! A super cheat!"
Kouki roared repeatedly in his mind, nearly jumping for joy.
There was no need to elaborate on the significance of the Rinnegan in Naruto; just think of the mid-series boss, Nagato Uzumaki.
The abilities of the Six Paths were all incredibly overpowered. With a single Planetary Devastation, the Tailed Beasts were all younger brothers, and the powerhouses at the level of the God of the Ninja World were completely invincible existences.
Kouki didn't expect that he would transform from an unremarkable Genin into such a heaven-defying powerhouse in one fell swoop.
The leap was so vast that Kouki could scarcely believe it.
"Kouki, what's wrong?"
A voice broke through Kouki's thoughts. Shisui was tilting his head, looking at Uchiha Kouki and asked.
The others also stared at Uchiha Kouki with serious expressions.
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