The march to the border smelled of damp earth and Senju pride.
A thousand strong, Tsunade’s force moved with the rhythm of a clan that remembered winning wars.
And behind her, an Uchiha followed—a stain on their collective memory, a whisper in the ranks.
They halted at the edge of Fire country.
“Lady Tsunade,” a young Senju named Ryuichi bowed, his scout’s vest crisp against the morning light.
“Leave the reconnaissance to me.”
Tsunade considered him.
Ryuichi was good—a Jonin with eyes that missed nothing.
Reliable.
Ren hadn’t planned to speak.
But Ryuichi’s glance swept over him like a broom clearing dust.
It settled in his gut, a cold weight.
“Lady Tsunade,” Ren said, his voice flat against the rustle of leaves.
“I can scout.
No injuries.
No losses.”
He didn’t care about the Senju’s opinion.
He cared about the shadow it would cast on her.
Tsunade turned.
Her eyes held a question: why promise impossibility?
Ryuichi snorted.
“Uchiha brat.
Have you ever stood on a battlefield?
Do you know what reconnaissance costs?” He stepped closer, the scent of pine resin on his gloves sharp in the air.
“A scout gets captured if he’s careless.
Captured means tortured, means dead.
You talk about harmless scouting?
You’re feeding us fairy tales.”
Ren shook his head.
He covered his left eye with his palm.
His right hand opened, and the dirt at his feet stirred—grains of sand and soil twisting, coalescing, shaping themselves into a perfect, staring eyeball.
[Magnet Release: Eye of True Sight — Visual reconnaissance construct, shares vision with host]
The eye lifted from his palm.
It floated once around Ryuichi, a silent orbit.
Ryuichi froze.
Magnet Release.
The words hit the assembled Senju like a dropped weapon.
A bloodline limit.
Another bloodline limit.
Their stares softened from granite to clay—this Uchiha wasn’t just an Uchiha.
He was a weapon Tsunade had chosen.
Tsunade cleared her throat.
“Ren.
Explain.”
Ren smiled.
“The Eye of True Sight.
The eyeball in his palm had vanished.
His own left eye now held a faint, swirling gleam of iron sand.
The Senju gasped.
“It shares what it sees with me,” Ren said.
“If it’s destroyed, my eye is unharmed.
I just can’t use it again for a while.”
“And the range?” Tsunade’s finger tapped her chin.
“Ten kilometers.”
Tsunade’s mouth opened.
Ryuichi’s eyes widened.
Ten kilometers wasn’t a distance—it was a horizon.
It was seeing the enemy’s formation before they saw your shadow.
It was turning war into a choice.
Ryuichi Senju inhaled once, deep.
He bowed, his forehead nearly touching the grass.
“My apologies, Lord Ren.
My ignorance was an insult.”
Ren moved fast.
He caught Ryuichi’s shoulder, lifting him.
“You were worried for the unit.
That’s no crime.
And I might need your sword on my flank later.”
The Senju around them nodded.
This Uchiha didn’t have the Uchiha pride.
He had something else—something that felt, uncomfortably, like their own clan’s forgotten pragmatism.
Ren scratched the back of his neck.
“Lady Tsunade.
Could someone carry me?
Observing like this… it makes my head swim.”
Ryuichi laughed—a blunt, honest sound.
“I’ll do it.
He’s doing the work for all of us.” He hoisted Ren onto his back, the scout’s shoulders steady under the weight.
Tsunade watched, a smile touching her lips.
“Report anything immediately.”
“Yes,” Ren said.
“Yes,” Ryuichi echoed.
They crossed the border.
The Land of Rain swallowed them in wet, gray gloom.
The drizzle thickened to a downpour, soaking through cloth and spirit, a world away from Fire’s sun.
An hour in, Ren’s voice cut the rain.
“Stop.”
Every ninja froze.
Kunai appeared in hands.
Shuriken spun ready.
Faces hardened into masks waiting for a command.
Tsunade didn’t turn.
“Ren.
“Ten kilometers ahead,” Ren said, his tone cold, detached.
“Two hundred Rain ninja.
Twenty Jonin.
Fifty Chunin.
The rest Genin.
They’re moving toward us.”
Ryuichi grinned.
“A small force.
We can take them.”
Tsunade nodded—then Ren spoke again.
“They carry canisters.
Poison gas.
Likely Hanzo’s original formula.
They all wear masks.”
Tsunade’s expression shattered.
“Left!
Everyone left!
Move quiet, erase tracks!” Her commands snapped through the ranks.
In ten minutes, they were climbing a steep slope, looking down at the ground they’d just abandoned.
The Rain ninja arrived below, confused.
Their gas canisters glinted in the rain.
No enemy.
No fight.
Tsunade breathed out, her relief a silent thing.
She wasn’t afraid of poison.
She was afraid of the hundred young faces behind her who hadn’t learned to fear it yet.
She frowned at Ren.
“Why left?
The right had better vantage.
Now we’re stuck on a mountain.
How do we descend?”
Ren chuckled.
“Because there’s a fat bird on the right.”
As he spoke, the earth on the opposite slope erupted.
Ninja poured from the ground—Iwa ninja, their uniforms dust-colored, their hands already weaving seals.
“Earth Release: Heart Decapitation Technique!”
“Earth Release: Swamp of the Underworld!”
“Earth Release: Earth Mound Dumplings!”
The earth itself turned against the Rain force.
Mud swallowed legs.
Stone fists crushed ribs.
The Rain ninja fell in silent, wet heaps, half their number gone before they could scream.
Onoki knew how to train soldiers.
He knew how to wait.
And Ren, carried on a Senju’s back, watched it all through an eye made of sand—a spy who had just turned two hundred enemies into a gift for another nation.