The arena didn't just shift this time.
It restructured reality itself.
The ground beneath David, Sharon, Pearl, Collin, and Tobi fractured into floating segments—each one drifting away into darkness like islands being pulled apart by an invisible force.
Pearl grabbed for Collin's sleeve.
But missed.
"NO—!" she shouted.
A sharp pulse of energy exploded between them.
And in an instant…
They were separated.
DAVID'S PLATFORM
David landed hard on a cold metallic surface.
He wasn't alone.
A single creature stood ahead—but it wasn't attacking yet.
It was waiting.
The voice of the teacher echoed softly:
"Isolation improves adaptation."
David clenched his fist. "So this is the separation phase…"
The creature tilted its head.
Then spoke again—inside his mind:
"TRIGGER VALUE CONFIRMED."
David's eyes narrowed.
"You're trying to understand me."
The creature moved.
Faster than before.
David reacted instantly—his vision flickering into the hidden system again.
Lines. Weak points. Structure.
But something was wrong.
The system here was different.
Corrupted.
Unstable.
"Why is it stronger here…?" he muttered.
The creature struck.
David barely dodged.
A crack split the platform beneath him.
SHARON & PEARL PLATFORM
Sharon stumbled forward, catching Pearl before she fell.
"We're separated…" Pearl whispered.
Sharon's expression tightened. "No. We were split on purpose."
Pearl looked scared. "Why would they do that?"
Sharon looked at her hands.
The heat energy flickered again.
More unstable than before.
"Because they want us to panic," she said quietly.
A voice echoed behind them.
Not the teacher.
Something else.
Cold.
"I wouldn't call it panic."
A figure stepped out of the shadows.
A student they didn't recognize.
Wearing a damaged uniform.
Eyes completely blank.
Pearl stepped back. "Who… are you?"
The boy tilted his head.
"I was in the last class."
Sharon froze.
"…Last class?"
The boy smiled slightly.
"They said I failed the separation phase."
Then his body shifted—
And multiple shadow-like copies formed behind him.
Pearl's voice broke. "That's not a student…"
Sharon stepped forward slowly.
"That's a result."
COLLIN PLATFORM
Collin was alone.
"Okay… cool… I love being alone… totally fine…" he muttered nervously.
A loud crack echoed.
A creature dropped onto the platform.
Then another.
And another.
Collin's smile faded.
"…Why is it always me?"
The creatures didn't rush him.
They surrounded him slowly.
As if studying him.
Then one spoke.
"You are unstable."
Collin blinked. "Excuse me?"
Another voice.
"You are unpredictable."
He took a step back.
"Okay that sounds bad—"
The creatures moved at once.
Collin panicked.
"OH NO NO NO—!"
He slammed his foot down—
A shockwave burst out.
But this time…
It wasn't as strong.
He froze.
"…Why is my power weaker?"
The creatures closed in.
TOBI PLATFORM
Tobi stood alone on a narrow floating bridge.
He didn't look surprised.
Just annoyed.
"So this is the 'separation strategy'…"
A calm voice answered him.
"Yes."
Tobi turned slightly.
And for the first time—
The teacher was visible here.
Not fully.
Just a projection.
Tobi sighed. "You're really annoying, you know that?"
The teacher's voice remained calm.
"You are not part of the intended system."
Tobi smirked slightly.
"Yeah? Neither is he."
He pointed into the darkness.
Where David was fighting.
The teacher paused.
"…Interesting observation."
Tobi cracked his neck.
"Tell me something."
A pause.
"Am I supposed to survive this phase… or break it?"
The teacher didn't answer.
That silence was enough.
Tobi smiled.
"Got it."
Then he moved.
And vanished into motion.
DAVID – SYSTEM CORRUPTION
David was now surrounded.
The creature multiplied its attacks.
Every time he dodged, the platform destabilized further.
His vision flickered.
The system view was breaking.
"Why can't I read it properly…?" he muttered.
The creature spoke again:
"YOU ARE NOT THE USER.""YOU ARE THE ERROR."
David froze slightly.
"…Error?"
The creature lunged—
And this time, it hit him.
He was thrown across the platform hard.
Pain shot through his side.
For the first time…
He felt it.
Limits.
The teacher's voice echoed softly:
"Separation phase is not about survival."
A pause.
"It is about choosing what breaks first."
David slowly stood.
His markings flickered violently.
"…Then I choose the system."
The air around him cracked.
And the platform began to respond.
END OF CHAPTER 16
The arena was no longer a test.
It was becoming a battlefield of fractured realities.
And each student…
Was now facing something different.
Something personal.
Something designed to break them individually.