Kaito returned to training sooner than the doctors wanted.
He said the dizziness had faded.
He said the headaches were manageable.
He said it with the same calm expression he always wore, as if pain were just another minor inconvenience.
Mika did not argue in front of the technicians.
But she noticed everything.
The slight pause before he stood up from a chair.
The way his fingers tightened subtly when synchronization began.
The extra second his breathing took to steady itself.
Unit 07 powered on with a familiar hum.
Neural link engaged.
Eighty eight percent.
The number felt stable.
But beneath the surface, something trembled.
Inside the cockpit, the air always felt warmer than outside. The enclosed space amplified sensation. Every breath, every heartbeat, every flicker of emotion became magnified through the neural interface.
When their minds aligned, Mika felt it immediately.
Kaito's rhythm was still steady.
But now it carried strain.
Like a string pulled too tight.
She focused harder than usual, guiding the unit through simulated maneuvers. The machine responded beautifully, movements fluid and precise.
Technicians praised their coordination.
Eighty nine percent.
Ninety.
The number appeared briefly before stabilizing back to eighty eight.
She felt it.
That slight spike.
And she felt the cost of it.
After training, they did not go to the rooftop.
Instead, Kaito stopped walking midway across the courtyard.
The artificial sky above glowed pale violet.
He leaned against the wall, eyes closing for a moment.
Mika stepped closer.
His face looked paler than usual.
She reached for his hand without thinking.
His skin felt cool.
Not cold.
Just lacking warmth.
He opened his eyes slowly.
There was something fragile in them now. Not weakness. Something more honest.
He told her he had always known high synchronization pairs rarely lasted.
He had read the archived reports before the program sealed them.
Most pairs that exceeded ninety percent experienced neural collapse within a year.
Mika's throat tightened.
She asked him why he had not told her.
He answered simply.
Because she would have pulled away.
And he did not want distance.
The honesty hurt more than any medical diagnosis.
That night they returned to the rooftop anyway.
The city lights below flickered in controlled patterns. The dome shimmered faintly overhead.
Mika leaned against the railing. Kaito stood beside her.
She told him she hated that the program reduced everything to numbers.
He nodded.
He said that numbers made it easier for institutions to measure success.
But they did not measure fear. Or longing. Or the quiet comfort of standing beside someone without needing to speak.
She asked him if he regretted pairing with her.
The question escaped before she could stop it.
He looked genuinely surprised.
He said regret required wishing for a different choice.
He did not wish for one.
The wind shifted across the rooftop.
Without looking at her directly, he admitted something else.
He said that before the evaluation chamber, he had felt nothing distinct about the future. It was simply something that would happen.
After synchronizing with her, the future became specific.
It became something he wanted to reach.
The words lodged inside her chest.
She stepped closer.
Their shoulders touched again.
This time it was intentional.
Below them, the city remained quiet.
Above them, the artificial stars glowed in fixed constellations.
Mika wondered what real stars looked like beyond the dome.
She wondered whether they burned brighter or faded faster.
The next week brought another field mission.
Unit 07 deployed smoothly.
Eighty seven percent at launch.
Eighty nine during engagement.
The enemy constructs moved unpredictably near the perimeter barrier. Energy fluctuations destabilized the field.
Mika focused on external targeting systems.
Then she felt it.
A sudden drop in Kaito's internal rhythm.
Just a fraction of a second.
But enough.
Synchronization spiked.
Ninety one percent.
Pain flashed through the link like lightning.
Her breath caught.
The machine jerked violently.
Emergency protocols activated.
She tried to pull back mentally, to reduce exposure.
But resonance did not work like that.
When fear surged through her, it echoed through him.
When concern tightened his pulse, it fed into her.
They were amplifying each other.
The system forced disengagement.
Unit 07 powered down abruptly.
Inside the cockpit, Mika's hands trembled.
Behind her, Kaito's breathing sounded uneven.
Medical staff extracted them immediately.
This time he did not collapse.
But the strain was visible.
Doctors confirmed further neural degradation.
They used cautious language, but the implication was clear.
If synchronization continued at high levels, cardiac failure was likely.
Mika sat beside him in the infirmary later that evening.
The room was dimly lit.
He looked smaller in the hospital bed.
Not physically.
Emotionally exposed.
She asked him quietly if he was afraid now.
He considered it.
He said he was not afraid of dying.
He was afraid of leaving her alone with the silence he had once described.
The words broke something inside her.
She told him she did not want to be brave about this.
She did not want to accept statistics or probabilities.
She wanted time.
Just time.
He reached for her hand.
His fingers wrapped around hers with weak but deliberate pressure.
He told her that time was not measured by length alone.
Sometimes a short rhythm could change an entire life.
Tears blurred her vision, but she did not pull away.
For the first time, she allowed herself to cry in front of him.
Not loudly.
Not dramatically.
Just quietly.
He lifted his other hand and brushed his thumb against her cheek.
His touch was gentle, almost apologetic.
He asked her to promise something.
If the connection ended, she must not close herself off again.
She must not return to believing she was defective.
She wanted to refuse.
But she saw the exhaustion behind his calm.
She nodded slowly.
The following days felt suspended.
Training sessions were reduced but not eliminated.
Synchronization stabilized around eighty five percent.
Safe, according to technicians.
Manageable.
But both of them knew safety was fragile.
On the rooftop one night, the dome flickered unexpectedly.
For several seconds, the artificial projection failed.
Above them, the real sky appeared.
Dark.
Vast.
Filled with uneven stars scattered across infinite depth.
Mika felt her breath leave her.
Kaito stared upward with quiet wonder.
He whispered that the real sky felt less controlled.
Less predictable.
More honest.
She stepped closer to him until their arms touched fully.
He leaned slightly into her, balance subtle but meaningful.
In that moment, the program, the numbers, the medical warnings all felt distant.
There was only the shared warmth between them and the fragile truth hanging overhead.
She realized something she had been avoiding.
Love did not arrive loudly.
It arrived quietly.
It settled in small spaces.
In matching breaths.
In shared rooftops.
In the fear of losing someone before you are ready.
And standing beneath the real sky, with his heartbeat faint but present beside her own, she understood that even if the future was short, she would choose this connection again.
Not because it was safe.
But because it was real.
The dome projection slowly restored itself.
Artificial stars replaced the real ones.
But the memory remained.
And somewhere deep inside, Mika sensed that the time they had left was narrowing.
Not abruptly.
Not dramatically.
Just steadily.
Like a heartbeat counting down.