Naruto : The Cloud’s Secret Experiment
In the depths of Kumogakure, there is a child the Raikage never admits exists.
They call him Rei.
On paper, he’s a research asset.
In reality, he’s the soul of a dead scientist from another world, dropped into Naruto’s universe with all his memories intact.
To the Cloud, he’s the centerpiece of a classified program: The Cloud’s Secret Experiment, a living testbed for chakra, seals, and weapons that should never see daylight.
To himself, he’s on a deadline.
Rei knows what’s coming: Akatsuki, bijuu hunts, a Fourth Shinobi War that will devour unprepared villages whole. If Kumo insists on turning him into a monster, he’ll choose what kind.
A weapon that obeys orders…
or a storm that rewrites the script of the entire ninja world.
Note : I promise you’ll love this fic as it progresses—great stories always start with a slow and strong setup.