The board shudders under her hands.
Metal drags against wood as Yukinae shifts it across the crate edge, stabilizer frame tilted open like an exposed rib cage trying to remember what it used to be for.
A bolt slips loose.
It drops once.
Clicks against the seam between bark-plated floorboards.
Then disappears into the gap.
Wind forces itself through the window seal.
Not soft weather.
Pressure.
Runa X doesn't wake like a place that belongs to people. It exhales through its layered branches, pushing air, noise, and mechanical rhythm through the trunkline like something half-living and half-built.
The apartment reacts to it.
Always slightly late.
Always slightly wrong.
Yukinae leans into the hoverboard frame.
The wrench turns.
Resistance.
Then a reluctant shift, like the machine is deciding whether to cooperate.
The propulsion housing vibrates under her palm.
Not failure.
Correction fatigue.
A system forced to compensate too many times without proper reset.
The board isn't broken.
It's exhausted.
She tightens the stabilizer bracket again.
The response is immediate.
A sharper tremor runs through the frame.
"Still pulling left…" she mutters.
Outside, a courier board slices through the upper wind channels too fast for safe drift calibration. The sound arrives a heartbeat later—compressed air snapping between massive branches high above the district layers.
The apartment trembles faintly in sympathy.
Yukinae doesn't look up.
She already knows what that speed means.
Desperation.
Or overload.
Sometimes both.
She rotates the stabilizer plate in her hands.
Micro-scorching lines the intake edge.
Not heat damage.
Stress patterning.
The system has been correcting itself wrong for too long.
Something inside it has learned the wrong version of balance.
The board isn't malfunctioning.
It's adapting.
Poorly.
A knock lands against the doorway.
Measured.
Familiar.
"You alive in there?"
Dagan steps inside before she answers.
Rain follows him in, dripping from the hem of his jacket in uneven threads that darken the floorboards.
He pauses immediately when he sees the disassembled board.
"…You took the whole stabilizer apart?"
"Only what was failing," Yukinae replies without looking up. "And half of it was already loose."
Her wrench turns again.
Click.
Click.
The board answers with a low vibration through the wood.
Dagan sets a paper bag on the counter.
Bread. Tea leaves. Canned food.
Simple things that somehow feel heavier than metal.
"You didn't eat," he says.
"I did."
Her stomach immediately disagrees.
A pause.
Dagan pretends not to hear it.
Which somehow makes it worse.
He crouches beside the board, studying the exposed intake housing.
"You're overcorrecting again."
"I'm preventing impact failure."
"That's not correction. That's panic engineering."
Yukinae finally looks at him.
"Same outcome."
Silence settles between them.
Outside, wind shear tears through the upper branch corridors.
Somewhere deeper in the tree, courier systems pulse through structural veins of Runa X itself—routing pressure, balancing flow, adjusting load across living architecture.
The city never fully sleeps.
It just redistributes strain.
Dagan taps the intake casing.
The sound is wrong.
Too hollow.
"You're making it too sensitive," he says.
"And you're saying that like the ground won't still break my ribs."
His mouth twitches slightly.
Not disagreement.
Acknowledgement.
They work in silence for a while.
Metal clicks under tools.
Steam rises from the kettle in thin drifting strands before being pulled sideways by shifting air pressure.
For a brief stretch of time, the apartment stops feeling temporary.
It feels… stable.
That thought makes Yukinae uncomfortable.
Stability is never reliable in Runa X.
Dagan glances at her while tightening a bracket.
"You ever think about mechanic work instead?"
"The pay's worse," she replies. "Courier work covers medical treatment."
"Still safer," Dagan says.
The word hangs longer than it should.
Safer.
Yukinae's hands pause for half a second.
Not mechanical hesitation.
Something deeper.
A memory fracture.
Jura's voice surfaces without warning.
Not spoken.
Remembered.
You don't listen to systems. You test them until they break or tell you the truth.
Her grip tightens again.
Outside, another courier tears through upper wind lanes, loud enough to rattle the walls.
Yukinae's head lifts automatically.
Instinct before thought.
Jura used to hate that.
Curiosity gets people killed faster than blades do.
The memory shifts—
river water under Gigantis canopy light Fletcher sitting on the bank pretending not to care training weights sinking into wet sand a fall from a practice board no immediate help then help anyway, late and irritated—
The memory collapses again.
Leaving weight behind.
Dagan's voice cuts through it gently.
"You disappear a lot."
Yukinae blinks.
"…What?"
"You make that same expression every time you're not fully in the room."
"I don't leave rooms."
A beat.
"You just don't always stay in them," he says.
That lands quietly.
Too accurately.
Rain thickens outside.
The apartment feels smaller again.
Contained.
Not unsafe.
Just observed.
The hoverboard hum shifts.
Subtle at first.
Then uneven.
Yukinae notices it before Dagan speaks.
The propulsion chamber vibrates without input.
Not calibration.
Not correction.
Something inside the system is reacting.
Dagan straightens slightly.
"…That's not you."
"No," Yukinae says.
The stabilizer plate shifts on its own.
One millimeter.
Then another.
Like the system is no longer asking permission from physics, only checking whether physics is still listening.
The air pressure changes.
Not wind.
Something deeper—like the city is adjusting its own breath somewhere beneath visible layers.
Yukinae takes a step back.
The board continues moving.
A beat passes.
Too clean.
Too absolute.
Dagan's voice lowers.
"Stop touching it."
"I'm not—"
She stops.
Because it isn't reacting to them anymore.
It's reacting through them.
The rain outside freezes.
Not vanishing.
Suspending.
Each droplet held mid-descent like the sky forgot how to finish the sentence it started.
Silence follows.
Not absence of sound.
Permission being revoked.
The lantern flickers once.
Then stabilizes into a colder spectrum, as if warmth has been archived somewhere inaccessible.
The board's intake fins begin to glow.
Thin blue-white lines spread through the metal like veins remembering a configuration older than its current design.
The wood beneath it vibrates.
Not movement.
Transmission.
Dagan exhales slowly.
"This is network-linked," he says. "Courier infrastructure feedback loop."
Yukinae shakes her head once.
"No. This isn't guild routing."
The board's interface fractures across cracked glass.
A warning sequence tries to assemble.
Fails.
Tries again.
Then resolves into a single line:
BROKEN SIGNAL DETECTED
The room tightens.
Not physically.
Conceptually—like space itself has decided to stop expanding for a moment.
A second pulse follows.
Not guild protocol.
Not courier language.
Something deeper in the architecture responding from beneath its intended design.
A buried classification layer surfaces.
Dagan steps closer without realizing it.
"Why does a courier board have a second system layer?" he mutters.
The board answers.
The glow intensifies.
The room feels briefly weightless, as if gravity has loosened its grip out of curiosity.
Then the interface fractures again.
A second line forms beneath the first.
Not corrupted.
Recognized.
At a structural level that should not exist in courier-grade machinery.
VALKYROS NODE RESPONSE ACTIVE
The name settles into the room like pressure behind the eyes.
Neither spoken nor displayed.
Imprinted.
Yukinae whispers without meaning to:
"…Valkyros?"
The board pulses once.
Hard.
The vibration travels through the apartment floor, down into the bark-vein trunk beneath Runa X, and outward into something far larger than either of them are prepared to name.
Somewhere deep beneath the branch districts—
something answers.