The night sky above Paras City hung heavy and starless, choked by the glow of neon towers and the distant rumble of subways far below. On a lonely stretch of elevated footpath, Sai stood completely still, the only motion the faint tremor in his clenched fists.
He reached up with deliberate slowness and slid the dark goggles from his face.
The instant they left his skin, a violent azure spark detonated deep within his pupils. It didn't flicker—it erupted outward in languid, crackling waves, bathing his sharp features in cold blue light. The energy rippled across the air like liquid lightning, drawing every eye within sight. Strangers halted mid-step. Conversations died. Phones lifted in trembling hands. The entire street seemed to hold its breath as the glow intensified, turning night into eerie daylight around him alone.
His black jacket caught an invisible current—his own suppressed aura stirring the wind. The fabric billowed outward in slow, majestic sweeps, edges snapping like dark silk caught in a storm only he could feel. Strands of his midnight hair lifted and danced across his forehead, faintly luminous.
His voice emerged low, almost intimate, yet it rolled across the pavement like distant thunder over still water.
"There is no way… they are living after what they did to me. I am not forgiving."
He dropped to one knee in perfect silence. His palm pressed flat against the cracked stone.
The ground answered instantly.
Water wept upward from impossible places—seeping through fissures in concrete, condensing from the humid night air, rising in delicate threads from the river far below. Droplets gathered around him like obedient soldiers, swirling faster and faster until they formed a perfect, shimmering vortex. It lifted the hem of his coat, wrapped his body in liquid armor that gleamed like molten sapphire.
Then he moved.
A deafening sonic boom shattered the quiet. Windows rattled for blocks. Sai vanished in a streak of blue light, leaving only a spiraling trail of mist and the echo of thunder in his wake.
---
**North Lake Territory – Ancestral Stronghold**
The ancient grounds of the Water Clan lay under a blood-red sunset that bled across the lake's surface. Every dojo gate stood sealed behind shimmering water barriers. Hundreds of warriors lined the ramparts—katanas drawn, palms glowing with defensive currents, faces pale with the knowledge of what approached.
They had felt him coming for hours: a cold pressure building in the ley lines, growing stronger with every heartbeat.
Now he appeared at the far end of the central stone path.
Sai walked forward slowly, hands buried in his pockets, expression carved from ice. No flourish. No battle cry. Just the quiet, inexorable advance of inevitability.
A young warrior—barely past his initiation—stepped into the path first. His sword trembled violently in his grip.
"D-Don't move!" The shout cracked like thin ice. "You're our savior! The one who defeated Fura! Please… not like this! We can talk!"
Another warrior edged forward beside him, blade lowering halfway in desperate supplication.
"Give us a chance… we were wrong. We know that now. Please!"
Sai did not pause.
His voice remained soft, almost gentle, yet it cut deeper than any blade.
"You remember what I promised?" He spoke as though reciting an old vow. "Years ago… when my father died… I said I would return. And I would slay every last one of you."
The air thickened. Tension corded along Sai's forearms like vines ready to snap.
An elder stepped forward—gray hair whipping in the unnatural wind—hands raised in trembling placation.
"We cared for Yamato until his final breath. He was a legend to this clan—"
"Lies." Sai's eyes snapped open.
The pressure crashed down like an ocean collapsing inward. Warriors buckled to their knees. Some retched from the sheer weight of his aura alone.
Then—
"ATTACK!!!" the head elder bellowed from the rear.
A cataclysmic wave of techniques surged forward—hundreds of water spears, slashing blades, roaring waves, coiling roots—all converging on the solitary figure in black.
Sai did not flinch.
His body shimmered like moonlight on disturbed water.
Every attack passed harmlessly through him—swords slicing only air, spears dissolving into harmless mist, waves crashing against nothing but illusion.
He tilted his head ever so slightly.
"The Water Clan… is just a lie."
He vanished.
A single, precise kick connected with a random warrior's abdomen. The man launched backward like a ragdoll, smashing through three towering stone pillars before cratering into a distant wall. Dust and debris billowed outward in slow motion.
Sai reappeared high above the stronghold—arms crossed over his chest. Between his palms, a colossal azure orb spun with terrifying velocity, its surface rippling like a living storm.
"Minimum power: Water Flow."
He thrust both hands forward.
The orb detonated outward—not in raw destruction, but in a breathtaking ring of liquid death. Countless miniature spears lanced from its edge, piercing barriers, shattering armor, finding flesh with merciless accuracy. A chorus of screams rose like steam from boiling water.
Another senior charged from behind—blade raised in desperate fury.
Sai was already there.
"You know what's scariest?" he murmured, voice barely above a whisper in the man's ear. "It's me."
Palm pressed to the back of the skull.
A wet, concussive boom echoed across the grounds.
The head vanished in a burst of scalding steam and crimson mist.
Sai landed lightly on the cracked stone. His jacket fluttered gently. A faint, dangerous grin curved the corner of his mouth—the first real expression since he'd arrived.
"Remember when you tortured me as a child? Forced weights on me until my bones screamed? Now… taste your own medicine."
He raised both hands skyward.
Massive water hands—each the size of a small building—burst from the earth in a deafening roar. They smashed through ancient dojos, crushed fleeing warriors, dragged screaming bodies beneath the surface in merciless coils.
The head elder staggered backward, hair lashing wildly, blood streaming from his nose and ears.
"This monster… is an absolute powerhouse! We cannot survive—"
Sai teleported behind him mid-sentence.
A single vertical slash of his open hand.
The elder split cleanly in two. Blood sprayed in a graceful arc, mingling with glowing water and turning the liquid a radiant, cursed crimson.
Sai lifted two fingers.
Snap.
"Welcome… to my Tsunami Domain."
Reality itself fractured.
The sky tore open with a sound like breaking glass. The ground heaved violently. Towering walls of water rose hundreds of feet high, sealing the entire stronghold in an impenetrable dome of churning liquid. Poisonous black-tinged currents flooded the streets—corrosive, alive, hungry.
Sai floated at the absolute center, coat billowing like the wings of some dark celestial being.
Below, the survivors stared upward in naked terror.
"This is my domain," he said, voice soft and terrible. "Dodge it… if you can."
Portals ripped open behind him—swirling voids of black water.
He fired a casual blast into one.
The energy detonated inside, then erupted from every portal at once in a symphony of destruction.
Thick, roaring slashes of pressurized water tore through the ranks. Bodies exploded in sprays of red mist. Limbs scattered across the stone. The ground ran with rivers of blood.
One warrior—cornered, desperate—leaped skyward. His fist ignited with golden holy water.
"Sparks of the Water World!"
The punch landed—square to Sai's abdomen.
For the first time, Sai's eyes widened. Pupils vanished into white. Blood sprayed from his mouth in a dramatic crimson arc. He staggered mid-air, body curling inward.
The domain flickered. Collapsed for five agonizing heartbeats.
The attacker grinned through bloodied teeth.
"We did it… we killed the—"
Crack.
The man's arm twisted backward at an impossible angle. Then his torso. A spear of pure, searing water erupted from behind, piercing clean through his chest and out the other side.
Sai wiped the blood from his lips with the back of his hand. Pupils reignited—brighter, colder, almost amused.
"What did you think?" he asked quietly. "Your pathetic years of training would affect me? The strongest ever born in this clan… is strongest for a reason. And you raised the wrong one."
The remaining warriors rallied in one final, suicidal charge—leaping from every direction in a desperate storm of blades and water.
Sai crossed his fingers.
"Time stop."
The world froze in perfect stillness.
He teleported between them, delivering precise, bone-shattering punches that echoed like thunderclaps in the silence.
Snap.
"Time reverse."
The frozen attacks reversed course—striking their own wielders. Bodies contorted in reverse agony, screams trapped in frozen throats.
A final warrior swung a massive water axe in slow motion.
Sai blocked it with one finger. Dodged the follow-up effortlessly. Leaped skyward—hair and jacket fluttering in perfect dramatic silhouette against the blood-red sky.
He closed one eye, sighting down like a marksman.
"Minimum power: Reversed Water Flow."
Currents inverted with a groan that shook the earth. A colossal tornado formed—lifting warriors, shattered dojos, ancient trees into its roaring maw. Spectral sharks of water lunged from within, tearing into flesh with savage, graceful fury.
Sai floated calmly at the eye of the storm.
Blink.
The tornado evaporated in an instant.
Bodies rained down, crashing into ruins with bone-breaking impacts. The stronghold was nothing but rubble and red water.
Sai landed softly. Scanned the devastation with cold precision.
"I think… the head is still alive."
A low, ominous rumble approached.
An army marched into view—elite sorcerers in flowing black-and-crimson robes, water energy crackling like cursed lightning around them.
At the forefront: Hyuga.
Maroon hair flowed like spilled blood in the wind. Crimson eyes pierced through the smoke and steam. Black kimono pristine despite the carnage, muscles sharp beneath a lattice of old scars that spoke of battles older than Sai's entire life.
Hyuga smirked—slow, dangerous, almost amused.
"Oh? The strongest… is now destroying his own clan?"
Bloody red cursed water energy coiled around him—dark, malevolent, twisted in a way Sai's pure azure never could be.
"I am the founder of the Cursed Blood Water Technique," Hyuga said, voice carrying effortlessly across the ruins. "You're not enough to defeat me."
Sai's grin returned—wider, sharper, almost feral.
"Let's see."
Before either could move—
"Sai!!!"
A breathless, raw voice cut through the tension like a blade.
Suro burst from the treeline, panting desperately, hair wild and tangled from her frantic run. She skidded to a halt directly between Sai and Hyuga's army.
"Sai… stop this. Please."
Sai's smile vanished instantly. Genuine, unguarded shock flashed across his face—raw and human.
"Suro…?"
She stepped closer, ignoring the blood-soaked ground, ignoring the army, ignoring everything except the boy she had once known.
"You can't just slaughter them. I know what they did. I know they failed Yamato. I know they used you like a tool. I know every wound they carved into you. But this… this isn't justice. This is annihilation. This is you becoming the very monster they always treated you as."
Tears streamed freely down her cheeks, glistening in the dying light.
Sai's fists clenched harder. Veins stood out along his forearms like cords of steel.
"Don't interfere."
"Why?!" Suro shouted, voice breaking with raw, aching emotion. "I'm part of this clan too! I have the right to speak! We can talk—we can change things! Just… stop destroying everything we have left!"
An elite from Hyuga's side laughed mockingly.
"Oh ho? A low-rank girl daring to lecture the strongest? How bold. How foolish."
Suro ignored him completely.
She stepped forward and—without hesitation—wrapped her arms around Sai's, pressing her forehead against his shoulder with trembling force.
"Sai… this isn't you. The boy who counted to ten while I hid behind the hydrangeas… who smiled so brightly at lunch even when the others ran away… who came back bleeding but still looked at me like I was the only thing that mattered… he's still in there. I know he is. Please. Listen to me. Just once more."
Sai stiffened. His breathing hitched—once, sharply.
Memories crashed over him in relentless waves:
Her laughter in the flower garden.
Her small hands pressing desperately against his bleeding palm.
Her tears when he walked away into the night.
Slowly, he lifted his hand… and pushed her away. Gently. But firmly.
"Now it's my war. Go away."
Suro stumbled back a single step, eyes glistening, but she refused to fall.
Hyuga raised a hand lazily, crimson energy flickering along his fingers.
"Oi. I'm getting bored. Remove the girl from the drama, or she won't stay alive long enough to cry."
Suro froze in fear—but only for a heartbeat.
Sai looked at her—really looked—and something deep inside him cracked like thin ice over dark water.
He turned away.
"I'm sorry. I can't listen."
He started walking toward Hyuga.
Suro moved faster than she ever had in her life.
She threw herself in front of him, arms spread wide, blocking his path completely.
"If you want to hurt them… go through me first. Kill me."
Absolute silence fell across the ruins.
The entire army watched, stunned into stillness.
Hyuga narrowed his eyes, voice low and dangerous.
"Why is this weak girl protecting us? Does she truly believe the strongest won't kill her?"
Suro trembled violently, but her voice stayed steady—fierce and unwavering.
"I don't see the strongest right now. I see my childhood friend. The one who counted to ten while I hid. The one who came back bleeding but still smiled at me. In that respect… please… stop the chaos."
Sai's grip loosened.
He closed his eyes.
The wind died completely.
When he opened them again, the glow had dimmed—replaced by something softer, exhausted, achingly human.
"I… give up."
The words echoed like a thunderclap across the broken ground.
Suro's breath caught in her throat.
"You're… not joking?"
Sai exhaled—long, shaky, as though releasing a breath he'd held for years.
"Let's settle this with talk."
Hyuga's crimson eyes widened—for the first time in centuries, true, unguarded shock registered on the founder's face.
"The war ends… before it even begins? Impossible."
An elite beside him whispered, almost reverent:
"It's the power of the past."
Sai walked forward—slowly, calmly—until he stood eye-to-eye with Hyuga.
"A deal," Sai said, voice steady but heavy with exhaustion. "You never raise another child like me. You never use anyone as a weapon again. No more 'strongest' forged in pain and isolation."
Hyuga studied him for a long, tense moment—searching for deception, for weakness, for anything he could exploit.
Then he extended his scarred hand.
"Accepted."
They shook.
Suro's smile broke through her tears—brighter than any sunrise, fragile and radiant.
"For real…? You're coming back?"
Sai looked at her—really looked—and the last wall inside him crumbled completely.
"Yes. After all this chaos… I just want to rest. Yuki's grown into her own strength. Astra can train without me hovering. Let me… rest for whatever's left of my life. I'm never going to be completely fine again. But maybe… I can try."
Suro couldn't hold back anymore.
She threw herself into his arms, hugging him so tightly he actually stumbled back a step.
"Welcome back, idiot," she sobbed into his chest, voice muffled and trembling. "Don't leave us again. Ever. Promise me."
Sai hesitated—then slowly wrapped his arms around her. His shoulders shook once—just once—with the weight of everything he'd carried alone for so long.
"…I promise."
Hyuga watched from a distance, arms crossed. Annoyance twisted his features… but then, a small, tired smile escaped the corner of his mouth.
"So… this is the power of real bonds."
The sun dipped below the shattered horizon.
Evening fell gently over the broken North Lake.
And for the first time in years, a warm golden light—fragile, tentative, but undeniably real—glowed across the ruins, bathing the bloodied stone in quiet, healing warmth.