Jiraiya felt it before he saw it.
Not chakra gathering.
Not a jutsu forming.
The air around Emi shifted, subtly, as if direction itself had been nudged aside.
She stepped forward, palms open, stance pure Hyūga.
"Still standing," she said lightly. "Good."
Jiraiya wiped blood from his mouth and grinned despite himself.
"Kid, I've at least dealt with Gentle Fist before. No matter how advanced it gets."
He remained halted, deliberately still, allowing the two toads on his shoulders to rebuild a bit more of natural energy balance once again inside of him, a brief, calculated lull in the fight.
Emi saw it and immediately pressed in again.
The first strike brushed past his ribs, barely grazing cloth.
Jiraiya felt his chakra stutter.
Not sealed.
Redirected.
A pulse rippled through his tenketsu, wind and lightning injected together, polarity snapping inward, his own Sage Mode flow rebounding against itself for a split second.
He staggered back a step.
"…That wasn't normal," he muttered.
Emi didn't answer.
Instead of merely sealing tenketsu or bruising organs by disturbing chakra micro-coils, the way most Gentle Fist users did, she pushed her new release straight through him.
Even the lightest contact forced charged currents into his system, turning his own chakra flow and internal circulation against themselves gradually, making the body actively hostile to its own function rather than merely interrupted.
Her palms came forward again, steadier now, the movement stripped of excess, deliberate to the point of cold focus, each strike carrying that unfamiliar, charged chakra woven seamlessly into her form.
Not a repetition, but an escalation, an even more advanced variation she was also attempting for the first time at present, refined on the fly as she tested how far the release could be pushed without losing control.
So, Vacuum Palms erupted, but not as flat cutting waves.
The blasts were thick, translucent fists of compressed air, spiraling, charged, their vectors subtly curving mid-flight as polarity shifted inside them.
Jiraiya dodged one.
The second bent toward him anyway.
He blocked with Sage-enhanced Frog Kata forearm, natural energy flaring—
—and the blast slid sideways at the last instant, skimming past his guard and detonating behind him.
Stone shredded.
Jiraiya's eyes narrowed. "You're steering them."
A heartbeat later, the delayed backlash from those two brief contacts finally caught up to him.
His breath hitched, just slightly, but enough to matter.
His chakra flow wavered, distorted in a way that made his skin prickle with alarm. Not damage, not yet, but disruption, deep and invasive.
Dangerous.
Sage Mode demanded balance. Precision. Any instability risked collapse, or worse.
Both elders noticed instantly.
Fukasaku dug his claws in, croaking sharp and urgent.
"Jiraiya-boy, your flow's off."
Shima followed a split second later, voice tight.
"She scrambled it. Not brute force, structure. Let us take some."
Before he could answer, they siphoned chakra into themselves, redistributing the imbalance with practiced ease, smoothing the turbulence before it could spiral, since they were already fused with him at the present.
Jiraiya exhaled through clenched teeth. "Tch… figures."
But the effect didn't stop with him.
A delayed tremor rippled through the link as well then.
Fukasaku stiffened. Shima's grip tightened.
"—There," Shima hissed. "That tingling. Paralysis, maybe. Or backlash."
"Not full," Fukasaku muttered, forcing more natural energy through the bond.
"But it's spreading wrong."
Jiraiya felt it too now, faint spasms threatening to bloom beneath his muscles, nerves misfiring where her strike had passed, chakra refusing to settle cleanly.
"…She's not just hitting," he said quietly. "She's poisoning the flow itself."
Fukasaku clicked his tongue. "That ain't normal Gentle Fist."
"No," Shima agreed grimly. "That's something else riding on it."
Jiraiya's eyes narrowed as he steadied his breathing, reasserting control inch by inch.
"Yeah," he said. "I noticed."
Emi didn't press the advantage right away.
She held position instead, subtly adjusting her stance, recalibrating the flow through her tenketsu, measuring the feedback from her first real use of the release in live combat, and at this level.
She watched them through her veined Byakugan, calm and unblinking, the way a researcher studies a live specimen rather than an opponent.
She then tilted her head slightly, eyes bright, almost curious, as if she'd fully felt the disturbance ripple through him and decided to acknowledge it.
"Careful," she said lightly, voice carrying even through the storm of chakra.
"Sage Mode hates interference. You can't just brute-force balance once it starts slipping."
Her stance shifted a fraction, tenketsu already realigning, polarity humming under her skin.
"And I don't miss twice," she added, smiling.
Polarity Release.
It was not magnetism, no matter how tempting the comparison looked on paper.
Emi understood that distinction better than anyone, because she had lived inside it.
Wind governed direction, pressure, and the tyranny of motion.
Lightning governed charge, current, the invisible rules that decided what repelled and what clung.
Fused properly, they didn't create metal control or drag matter around like the Kazekage's sand.
They created something subtler and far more dangerous: control over motion itself, by deciding how the air carried charge.
This release wasn't something she had stumbled into.
She had been refining it for years.
Ever since Kimimaro first proposed the idea of an advanced elemental union, a few years back, it had lived in the back of her mind, always present, always tempting. It just never took priority.
There were more urgent paths, her Gentle Fist science, her Yin gen-taijutsu, the Yang parasitic overgrowth she was still perfecting.
Polarity was something she worked on quietly, in the margins.
But she never stopped.
To truly fuse two elements into a new nature release, not a trick, not a layered jutsu, but an actual new expression of chakra, both base elements had to be mastered to an extreme degree as well.
Wind and lightning, in her case.
Fast, unstable, and both very unforgiving elements.
That alone explained why it took so long.
She didn't rush it.
She refused to.
And as she liked to say, with no false modesty at all, she was a genius.
So eventually, she got there.
Maybe for the first time in history.
There had never been a recorded shinobi who fused wind and lightning into a single, unified release.
Not magnetism. Not an external combination. Something else entirely.
The way chakra behaved under that union felt different, charged, directional, and almost judgmental.
She named it herself.
Polarity Release.
It fit.
The properties made sense the moment she stabilized it: repulsion and attraction, vector control, charged motion.
It was never thrown.
It was injected, conducted, rotated, and collapsed inside the enemy's chakra network.
And when it finally clicked, she felt it immediately.
This was a leap.
Not incremental.
This was the thing Kimimaro had meant when he told her she was approaching a new tier like the others.
Peak Kage.
After all, advanced fused elements were inherently more potent than ordinary natures at the same cost, not through brute potency alone, but because their mechanics were unfamiliar, their interactions rare, and their natural counters scarce, leaving most opponents struggling to react only after the damage had already begun.
And her Byakugan was the key to everything.
Perfect internal vision, microscopic, real-time.
Where others would have spent decades learning how to force their chakra coils into the contradictory rhythms of wind and lightning, she could see it. Feel it.
Adjust instinctively. Her coils learned the rhythm because she could watch them fail and correct themselves in the same breath.
Decades of work, cut down to years.
Even Akane noticed.
She didn't say it out loud at first, but the edge was there, jealousy sharpened by genuine respect at the unique kind of power a fusion release like it represented.
Enough that Kimimaro noticed and began coaxing Emi as well, steering her toward the role of shaping Akane into forging an advanced release of her own.
Fire and lightning, Akane's own twin affinities.
Something unknown.
Something equally dangerous, perhaps.
Akane couldn't wait to see what would come out of it, her own version.
However, she didn't have a Byakugan, after all.
So, even with Emi helping more and more lately, it would take time.
But Akane's Mangekyō alone was already frighteningly powerful and still climbing at a rapid pace, so there was no urgency yet.
Emi also hadn't forged that new release through talent alone, but through a long, sustained furnace of anger, fixation, and the certainty that one day she would take her revenge.
She carried the memory quietly, even when she never spoke of it again.
The moment the cursed seal was triggered from afar.
The Hyūga command snapping shut around her body without warning.
Back when she first tried to leave this village.
Nerves frying. Muscles locking.
Chakra screaming as her own system turned against her.
She remembered hitting the ground, teeth chattering uncontrollably, saliva spilling uselessly as her thoughts fractured under the overload.
It hadn't been pain of the flesh alone.
It was pain processed through the brain itself, nerves misfiring, perception burning, identity blurring under forced control.
Physical agony and mental violation fused into something inseparable, a single, overwhelming violation that refused to fade.
That was what stayed with her the longest.
She had recovered only because she was stubbornly cheerful by nature, because she refused to let that moment define her.
And because Kimimaro had been there. Had saved her. Had promised vengeance with a certainty so absolute it felt like an unbreakable law.
For some reason, she hadn't wanted to look weak in front of him after that, like a quitter, like someone reduced to nothing more than a victim waiting to be pitied.
That memory never left her.
Which was why she'd felt a sharp, bitter disappointment when Kimimaro went after the Hyūga without her just now.
However, watching the clash still raging in the distance, the former Uchiha compound reduced to rubble beneath Hiashi's unleashed power as he pressed Kimimaro head-on, she finally understood.
Kimimaro hadn't gone alone out of arrogance.
He had gone because the Hyūga were far more than they pretended to be.
Far more than she had ever known them to be as a 'lowly' side-branch member.
And judging by that distant, ongoing collision, they weren't going to fall today.
Which meant her turn would come. Soon.
...
Jiraiya's hair surged again, Wild Lion's Mane snapping forward in a binding sweep mid-air to bait something.
She didn't retreat.
She spun.
Rotation rose automatically around her, but it wasn't that wide, big defensive dome Jiraiya expected again.
It was tighter, denser, constantly looming with a predatory weight, a reflex honed so far beyond thought that refinement itself had become instinct.
Wind screamed as it collapsed inward, lightning threading through it like veins beneath skin.
The hair never reached her.
It bent.
And contact never came.
The strands lost cohesion mid-strike, their momentum torn apart as the polarity around her body inverted, repelling them like they had struck an unseen armor.
Because once she activated and fused it with her Gentle Fist, the atmosphere around her no longer remained still.
It became active, charged, rewritten moment by moment, every breath of air responding to her control.
Air ionized, thinned, thickened, warped.
Charged currents slid along invisible vectors she could feel with her Byakugan down to the smallest fluctuation, every tenketsu in her body feeding precise polarity shifts into the space around her.
Attacks didn't simply come at her anymore.
They were guided. Pulled off-line. Accelerated past her.
Turned back on themselves as their own force was reweighted in motion.
It wasn't Magnet Release.
Magnetism needed matter, iron, dust, something solid to obey it.
What she wielded didn't.
It worked on the field beneath everything, the charged flow motion itself rode on, the invisible rule that decided where things went before they ever arrived.
And it turned her Gentle Fist into something even monstrous and unmatched.
Her Rotations ceased to be just a repelling dome and became a grinding storm, a compressed polarity field that shredded anything crossing its boundary near her body, stealing momentum and feeding it back into her own counterflow.
Her Vacuum Palms no longer merely struck; they arrived already destabilized, vectors shifting even in flight as ionized pressure collapsed air resistance and punched straight through chakra defenses and nervous systems alike.
Even the smallest tenketsu injections carried precise charge differentials, scrambling large parts of chakra circulation on the smallest contact, short-circuiting control rather than simply sealing it.
The constant electromagnetic distortion also made her nearly impossible to track by chakra alone as she moved.
It favored precision. Timing. Anatomy.
It wasn't flashy unless she wanted it to be. It was control, made invisible.