Training begins

The doors sealed behind them with a sound that felt less like metal locking and more like a final decision being made.

Sakura didn’t turn around.

Something told her she didn’t need to see it to understand what it meant.

The tunnel ahead stretched deep into the facility, lit by cold white panels embedded into the walls. Every step echoed too clearly, as if the place was listening.

Students walked in silence now. No more nervous whispers. No jokes. Even Akane had stopped speaking entirely.

Kai led the group.

That fact alone unsettled Sakura more than anything else.

“Why is he in front?” a boy muttered behind her.

No one answered.

Because no one knew.

Or no one wanted to admit they were following him anyway.

The tunnel opened into a massive chamber.

Sakura stopped at the entrance.

The space was enormous—far bigger than anything that should exist underground. Rows of glass observation rooms lined the upper levels, and below them were training grounds split into sections: obstacle courses, combat arenas, simulation zones.

Everything looked… new. But not unused.

Like it had been waiting.

Waiting for them.

A group of adults stood at the center of the chamber.

Not teachers.

Not staff.

They wore black tactical uniforms without school insignias. Their presence alone changed the atmosphere instantly.

One of them stepped forward.

“Welcome,” the man said calmly. “You may call me Instructor Vale.”

No one responded.

Vale didn’t seem to expect it.

“You are no longer standard students of Hoshikawa Academy,” he continued. “From this point forward, you are classified as Operation Candidates.”

Akane immediately stepped forward. “This is illegal. We’re minors. We didn’t agree to any of this.”

Vale looked at her briefly. “You did. Enrollment at Hoshikawa includes full consent via guardianship transfer.”

Akane froze.

Sakura felt something cold settle in her chest.

Guardianship transfer.

So it wasn’t just the students who had been kept in the dark.

It had been everyone.

Kai finally spoke. “How many previous batches?”

Vale’s eyes flicked to him.

“A few,” he said simply.

That answer said everything without saying anything.

A few meant failures.

A few meant losses.

Sakura’s gaze shifted slightly toward Kai.

He didn’t look surprised.

Only… focused.

Like he was calculating something.

Vale clapped once.

The sound echoed sharply.

“Enough questions. Today is assessment day.”

The lights above shifted.

Panels on the walls lit up, displaying names.

Sakura Yumi.

Akane Yumi.

Kai Ren.

And dozens of others.

“Your first task,” Vale continued, “is simple. Survive your introduction trial.”

The floor beneath them vibrated slightly.

Then split.

Sakura stepped back just in time as sections of the ground slid apart, revealing a lower level.

A training arena.

Below them, moving structures activated—rotating walls, shifting platforms, automated obstacles.

This wasn’t orientation.

It was a test.

Immediately.

“No way…” someone whispered.

Akane clenched her fists. “You can’t force us into this.”

Vale’s voice remained calm. “You are not forced. You are evaluated.”

Kai stepped forward slightly. “What are the parameters?”

Vale looked at him with mild approval. “Completion of the course. Or incapacitation.”

Silence.

Sakura’s mind processed the words carefully.

Incapacitation.

Not failure.

Not return.

Incapacitation.

Meaning there were only two outcomes that mattered here.

You continued.

Or you stopped existing in the system.

A metallic gate opened on the far side of the arena.

Then another.

And another.

Figures began to emerge.

Not students.

Drones.

Humanoid-shaped training units with blank faces and precise movements.

Akane took a sharp breath. “Those are robots…”

Sakura corrected quietly, “Weapons.”

The first drone moved.

Fast.

Too fast.

It closed the distance between itself and a student in under two seconds.

A scream rang out.

Then silence as the student was thrown back into a barrier wall.

Not dead.

But unconscious instantly.

Panic erupted.

“Move!” Kai shouted suddenly.

That was the first time his voice carried real urgency.

The drones advanced.

Systematic.

Coordinated.

Sakura reacted instinctively, stepping backward as one came toward her. She ducked just in time as its arm swept past her face.

It missed by centimeters.

Her heart finally kicked into full alert.

This was real.

Akane moved differently—less hesitation, more aggression. She grabbed a loose metal rod from a fallen structure and struck one of the drones hard enough to stagger it.

“Stay down!” she snapped.

It didn’t stay down.

It recalibrated instantly.

Sakura saw it clearly now.

They weren’t fighting enemies.

They were fighting systems designed to learn.

Kai was moving through the chaos with controlled precision. Not panicked. Not reactive. Predictive.

He intercepted a drone mid-step, twisting its arm just enough to destabilize its balance, then pushed it into another.

Two collided.

Brief disruption.

Not destruction.

He wasn’t trying to win.

He was trying to survive efficiently.

Sakura noticed something else.

He was moving toward her.

Not Akane.

Her.

Another drone lunged from the side.

Sakura reacted too late.

But Kai was already there.

He grabbed her wrist and pulled her sharply out of the path.

The drone struck the ground where she had been standing.

Sakura steadied herself, pulling her arm back immediately.

“I had it,” she said automatically.

Kai didn’t look at her. “No, you didn’t.”

That irritated her more than it should have.

Another drone approached.

Kai didn’t hesitate this time. He kicked its knee joint, forcing it down, then stepped away.

“Stay close,” he said.

“I don’t need—”

“Sakura.” His voice sharpened slightly. “Stay close.”

She froze for half a second.

Not because of fear.

Because he said her name like he already knew she would listen.

Across the arena, Akane saw it.

And something in her expression shifted.

The hatred didn’t start there.

But it deepened.

Above them, in the observation level, Vale watched silently.

Beside him, another instructor spoke. “She’s reacting faster than expected.”

Vale nodded slightly. “Both of them are.”

“And the boy?”

Vale’s gaze stayed on Kai.

“He remembers too much for a first cycle.”

The instructor frowned. “That wasn’t in the file.”

“It never is,” Vale replied.

Below, the drones continued advancing.

And the first day of The Operation continued without pause.

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