Chapter Text
The river ran clear that morning, a thin silver vein cutting through the forest, indifferent to the clans that bled around it. Tobirama stood at its edge, watching the current drag light across the surface like a blade.
He had always hated the Uchiha.
But the moment he saw them gathered on the opposite bank — Tajima with his two sons, Madara’s eyes bright with new power, Izuna’s small frame tucked close to his father’s side — something colder settled in him. Something heavier.
Madara was worth less than the dust on his brother’s foot, yet his clan adored him. Tajima’s pride shone like a beacon when the boy’s Sharingan flickered to life. Even in the middle of a battlefield, the man smiled.
Tobirama had never seen his own father smile like that.
Butsuma’s love came in the shape of bruises. In the crack of bone. In the command to stand up again, because weakness was a sin and children were forged, not held.
“Strength,” Butsuma would say, wiping blood from his knuckles. “Strength is the only mercy I give you.”
So Tobirama learned early that affection was a myth. That softness was a liability. That fathers were not meant to be kind.
And when he saw Tajima’s hand resting on Izuna’s shoulder — gentle, protective, warm — he felt the old hatred sharpen into something precise.
Their love was a flaw. A fracture waiting to be split open. Someday, Tobirama would show them what weakness cost.
Someday, he would make the river run red.
Tobirama had always known the Uchiha were weak.
How could they be anything else? The first time he met Izuna — a small boy with wide, unguarded eyes — the child had looked at Madara as if his brother were the sun and the moon combined. Devotion like that was a flaw carved into bone.
This one should be easy to kill, Tobirama had thought.
And he had come close. More than once.
But now, nearing the end of adolescence, the pattern has shifted. Tobirama had collected a handful of near‑victories — moments where Izuna’s life hung by a thread — yet Izuna had returned each one in kind. Tobirama had felt death brush his throat, his ribs, the space between his heartbeat and the next.
It puzzled him. It gnawed at him in quiet hours.
Why had he not killed that boy yet? Why had someone raised in the soft grip of affection — a boy coddled by a father’s hand, sheltered by a brother’s shadow — grown into a warrior who could match him strike for strike?
Love should have broken Izuna. Softness should have ruined him.
And yet Izuna stood unbroken. Strong. Unyielding.
Tobirama did not understand it. And the not‑understanding was becoming its own kind of obsession.
Izuna disarmed him cleanly.
Steel struck steel, momentum broke, and Tobirama dropped to one knee on the battlefield. His injured arm refused to lift into a proper guard; pain throbbed through the joint like a warning drum. His mind raced for escape routes, calculations, angles — anything.
Izuna stood over him.
Close enough that Tobirama felt the heat radiating through the Uchiha’s clothes, close enough that the air between them tightened. I cannot be losing to a fool who’s been coddled all his life, was the only thought hammering through Tobirama’s skull as Izuna raised his blade for the killing strike.
The sword gleamed. Izuna’s stance was perfect. Tobirama braced for the end.
Then the world ruptured.
Madara’s katon slammed into Hashirama’s mokuton with catastrophic force. Burning roots exploded into splinters, shards of flaming wood shooting outward like shrapnel meant to kill anything in their path.
And something impossible happened.
Izuna did not finish the blow. He did not step aside and let Tobirama die.
He dropped down over Tobirama’s kneeling form, covering his head and shoulders with his own body. The burning splinters tore into Izuna’s back — skin, muscle, cloth — embedding themselves with brutal precision.
For a moment, time stretched thin.
Tobirama’s face was pressed against Izuna’s shoulder. He felt the Uchiha flinch, and heard the sharp hiss of pain as each splinter bit deeper. Izuna’s breath stuttered; his body tightened around Tobirama like a shield.
Why? Why would he do such a thing?
Tobirama was armored. Bigger. Stronger. His mortal enemy.
Why would Izuna protect him?
In that suspended heartbeat — held against Izuna’s body as if he were something precious, something vulnerable — a strange curiosity flickered to life inside Tobirama. Unwanted. Unnamed. Unsettling.
The moment ended as the heat passed over them.
Izuna pushed away first, springing back to avoid the next wave of flying splinters. Tobirama mirrored the movement, retreating into the chaos of battle.
But the question remained, lodged in him like a splinter of its own.
Tobirama found him outside the battlefield.
Izuna stood beneath the shade of a half‑burnt tree, shirt folded loosely at the waist. Through the fabric, Tobirama could see the white bandages wrapped around his torso — remnants of Madara’s careful hands removing the splinters one by one. The Uchiha always tended their wounds with tenderness. Even now, Izuna carried the evidence of it.
Izuna’s stance shifted immediately, dropping into preparation for a strike.
Tobirama didn’t reach for his sword.
“Why did you do that?” he asked.
Izuna didn’t answer at first. His posture eased, confusion flickering across his face as he realized Tobirama wasn’t here to fight. He searched high and low to find what Tobirama was referring to.
Tobirama’s gaze moved from the bandages to Izuna’s eyes, and understanding dawned.
Ah. That.
“It was a mere reflex,” Izuna said.
“Nonsense.” Tobirama’s reply came sharp, immediate. He had never once felt a reflex to shield an enemy. If their positions had been reversed, he would have shoved Izuna into the path of the splinters and watched with satisfaction as one blinded him.
Izuna turned away, irritation tightening his brows. “It's a ceasefire. I don’t have time to waste on you outside the battlefield.”
He paused, then added, “Think what you want. But if you must have an answer, hear this: it would be stupid if you died from a wood splinter in the ear. You should die by my hands.”
Tobirama stared at him, trying to make sense of such logic.
Death was death. An enemy gone was an enemy gone. What did it matter how?
Izuna’s reasoning made no sense. And yet it had been enough to make him shield Tobirama with his own body.
Tobirama stepped closer.
Izuna’s posture tightened immediately, stance rising, ready to strike. But Tobirama didn’t reach for a weapon. His arm lifted slowly — deliberately — as if he were approaching a skittish animal rather than an enemy.
Then he wrapped his arms around Izuna’s smaller frame.
Izuna blinked, large black eyes widening in pure confusion. He stood stiffly inside the circle of Tobirama’s arms, awkward and tense, until a soft scoff escaped him. A faint smile tugged at his lips, reluctant but real. His hands rose, hesitant, then settled around Tobirama’s waist.
He held him back.
And that was how it began.
It began because Tobirama needed to understand the strange feeling that had struck him on the battlefield — the moment Izuna had shielded him with his own body. In Tobirama’s world, he was the protector. He had protected Hashirama from their father’s blows, and protected their clan from weakness. He had never been protected in return. Never needed it.
Being covered by Izuna’s body had felt… unfamiliar. Unsettling. New.
He wanted to understand it. So he tried to recreate it.
The embrace didn’t replicate the battlefield moment — not exactly — but it gave him something else. Something he couldn’t name.
Izuna scoffed again, rolling his eyes, but his arms stayed firm. His chin rested lightly on Tobirama’s shoulder. His hands brushed up and down the Senju’s back in slow, absent motions, as if soothing a creature he didn’t realize he was touching.
Tobirama stood still, absorbing every sensation.
What sort of feelings are these? Another unfamiliar thing. Another mystery he needed to unravel.
Izuna held him, and Tobirama let himself be held — not out of affection, but out of curiosity.
And curiosity, for Tobirama, was always the beginning of something dangerous.
They found an abandoned farmer’s shack to meet in.
A run‑down hut, half swallowed by weeds, left behind when war swept through the valley. Tobirama saw a ruin. Izuna, somehow, saw a home.
He cleaned the dust from the shelves.
Washed the pots as if they would cook there.
Bought dried food supplies.
He moved through the shack with a quiet contentment that Tobirama found insufferable. How could someone be so pleased with something so absurd? What a little idiot.
Izuna even lured in a stray cat — black, starved, feral — which promptly became an unofficial member of their “group.” Tobirama refused to acknowledge it.
He lay draped over Izuna’s half‑reclined form, ear pressed to the relentless beating of Izuna’s heart, when Izuna pulled out a scroll to read. Tobirama’s brows furrowed instantly. This was his time. He did not share it with scrolls.
He lifted himself just enough to snatch the scroll and throw it out the window, then settled back over Izuna’s chest.
Izuna's heart — the insolent thing — beat on and on beneath his ear. Strong. Defiant. Insulting. A heart he would stop one day. Sooner rather than later.
Izuna only sighed, muttering about mule‑stubborn Senju as his fingers threaded through Tobirama’s short silver hair. He shifted again, and Tobirama was about to bark at him for fidgeting when an onigiri was pressed against his lips.
Tobirama stared at it as if it were poisoned. Izuna nudged again. His mouth did not budge.
Izuna rolled his eyes, took a bite himself, then presented it once more.
“Of all the ways I plan to kill you, poisoning would be the last,” he muttered.
Tobirama finally took a bite, refusing to lift his head from Izuna’s chest.
The stray cat — no longer stray, since Izuna had named her Katon, fed her, and cuddled her — padded in at the smell of food. She walked across Tobirama’s body as if he were a tatami mat and settled beside his face, on the empty side of Izuna’s chest.
Tobirama stirred, fully intending to throw the creature out the same window he’d thrown the scroll through. The cat bared her teeth and hissed — a clear warning that any attempt to dislodge her would cost him an eye.
Feral beast.
Filthy thing.
Sitting across his face, over Izuna, as if it were her turn to receive Izuna’s attention.
“Even the cat loves you,” Tobirama spat.
He was tired of seeing how Izuna was loved everywhere. In his clan, Izuna was the revered heir. Madara — the crown jewel of the Uchiha — smothered his brother in affection so blatant it made Tobirama cringe. Even vendors smiled at Izuna, and Izuna smiled back. Didn’t his face hurt from all that smiling?
And now this cat.
“It loves you,” Izuna corrected. “Every time she comes, she sits by you.”
True enough. As if Tobirama were a cushion and the cat royalty. But her eyes — no matter where she perched — were pinned on Izuna. Just like Tobirama’s.
“You just like me for the food, don’t you, little Katon?” Izuna crooned, voice slipping into that ridiculous tone people used on babies. “You little beast, with your grumpy little face.”
He leaned down and smothered both the cat and Tobirama’s face with kisses.
At this point, Izuna could have been talking to either of them.
Tobirama closed his eyes as warmth spread through him, tinting his face a dusky pink. The cat purred like a shameless hussy.
And Izuna held them both as if it were the most natural thing in the world.
Izuna was twenty‑four when Tobirama finally landed the blow he had been chasing since childhood.
It took teleportation — a technique never seen before, a rupture in the laws of battle, something that would reshape the shinobi world forever. Tobirama flickered out of existence and reappeared behind Izuna, and his blade slid cleanly through Izuna’s flank.
Izuna staggered, eyes wide, disbelief written across his face.
A thrill surged through Tobirama.
At last.
The moment he had promised Izuna again and again. The end he had been reaching for since the first meeting by the river.
Madara was at his brother’s side in an instant, catching Izuna before he fell. Desperation clung to him like smoke. For a heartbeat, he almost accepted Hashirama’s offer of peace — almost surrendered the war for the sake of the boy bleeding in his arms.
But Izuna stopped him.
“We can never trust the Senju,” he rasped.
Not after this. Not after the one he had loved — unashamedly, foolishly, fiercely — had dealt him such a blow.
Izuna had loved Tobirama. Loved him despite the wounds, despite the rivalry, despite the endless cycle of blades. Loved him openly, without shame.
And that love had been his weakness. Look what it earned him.
Madara carried his brother away, the wound fatal, the future already written.
Izuna never returned.
All Tobirama saw of him again was the Mangekyō pattern burning in Madara’s eyes — Izuna’s final gift, Izuna’s last heartbeat, Izuna’s love crystallized into a weapon. Even in death, Izuna’s love lived on, and it was that very love that would destroy countless lives.
So in the end, Tobirama believed he had been right all along.
Love was a weakness.
Love got one killed.
Love birthed despair without end.
Tobirama would never be such a fool to fall in love.
Tobirama missed the comfort of the body Izuna had given him.
The caresses, the kisses. The warmth that had settled over him like a second skin.
So he took lovers.
Warriors. Civilians. Men. Women.
Anyone strong enough. Anyone beautiful enough. Anyone who might recreate the feeling he had once found in Izuna’s arms.
But nothing came close.
Perhaps it was because Izuna had loved him.
So Tobirama sought out someone who had loved him for years — someone who had waited, someone who had confessed. He surrendered himself to their embrace and waited, reverently, for that lost feeling to return. He wanted to be soothed again, wanted that strange relief that Izuna had given him without meaning to.
It should have worked. In theory, love was love. If the person holding him loved him, the feeling should return.
Except it didn’t.
He changed lovers again.
And again.
People who looked like Izuna. People who fought like Izuna. People who confessed to loving him like Izuna had.
With slow‑rising horror, Tobirama realized Izuna had taken something with him when he died. Something necessary. Something vital. Something Tobirama could not name.
He had to find it again.
With the critical curiosity of a brilliant shinobi, he tugged at the threads of memory — and found a truth he had never allowed himself to see.
The relief had not come only from Izuna’s love.
It had come from his own.
He had loved Izuna.
Quietly. Unknowingly.
Long before the shack, long before the cat, long before the battlefield. He had loved Izuna.
And without knowing it, he had killed him. Not that knowing would have changed anything. If Tobirama had not killed Izuna, Izuna would have killed him one day. That was the nature of their bond — sharp, inevitable, fatal.
So what now?
The solution seemed simple: He had to love back one of the people who loved him.
Tobirama tried. He even pretended. He thought that if he acted long enough, he might trick his own mind. But it wasn’t his mind involved. It was his heart. And that thing made no sense.
He returned to the shack.
It was exactly as Izuna had left it — only dustier, quieter, covered in cobwebs. And Katon was there. It made sense why the place had no rats; she had been guarding it, waiting.
As Tobirama stepped inside, she fixed him with deep emerald eyes, as if asking where Izuna was.
“He won’t be coming,” Tobirama said — speaking to a cat, of all things.
He sat down.
Without closing his eyes, he could see the last time he had been there: Izuna sharpening a kunai, Katon batting at the end of his ponytail.
He blinked, and the mirage vanished, leaving only dust and emptiness.
“I suppose I’ll see you on the other side,” he whispered into the still air.
Fool that Izuna was, he might forgive Tobirama after some thrashing.
Relief washed through him.
At least there was an afterlife. At least there, he could chase Izuna again.
From that moment, Tobirama counted his days.
So when the Kinkaku Force presented themselves, Tobirama stepped forward with a quiet, relieved sigh. He gave his final instructions to his students — almost eagerly — and walked toward the last battle of his life.
Izuna had waited long enough.
It was time to be together again.