The mirror sphere stood silent… yet the silence itself felt strained, as if reality inside it had been stretched too far and might snap at any moment.
Only one thing moved.
A single spark.
It hovered just above the fractured ground, faint—almost insignificant. A grain of light in an endless void. And yet… the air around it warped, trembling under an invisible pressure that pressed against the skin, against the lungs… against the mind.
Zeo felt it before he understood it.
His eyes locked onto Shin.
Or more precisely… onto what Shin held so effortlessly between his fingers.
That tiny spark.
A fragment of something vast. Something ancient. Something that had no place being reduced to such a small, harmless form.
And yet it was.
For a moment, nothing happened.
Then—
Shin moved.
A simple flick of his hand… so casual it almost felt disrespectful.
The spark unraveled.
No—it exploded.
Not outward in destruction, but into streams—thin, radiant strands of sunlight that stretched and danced like flowing threads of gold. They spread across the sphere in an instant, illuminating everything… and then—
They vanished.
Gone.
Erased as if they had never existed. Like dust swept away by a passing breeze.
Zeo's breath hitched.
His mind struggled to keep up with what his eyes had just witnessed.
That power… that overwhelming, suffocating presence…
Reduced to nothing.
Shin stepped forward.
Calm. Unbothered. As if what he had just done was no more than brushing dust off his sleeve.
"Are you feeling alright?" he asked.
His voice was steady, almost gentle.
Zeo stared at him.
There was no hostility in his gaze… only something far more dangerous.
Uncertainty.
What are you…?
The thought rose unbidden, heavy and cold, echoing in the depths of his mind.
But Zeo said nothing.
Instead, he exhaled slowly, forcing his racing thoughts into silence. His fingers curled slightly, grounding himself in the present.
Then he stepped forward.
"I'm alright," he said, though even he could hear the faint strain in his voice. "Let's try it."
Shin studied him for a brief moment… then nodded.
"My element isn't just the sun," he said as he turned slightly, his gaze drifting toward the empty horizon of the sphere. "It's what comes with it. Its effects. Its variations. Different techniques born from the same core."
He paused, as if choosing his next words carefully.
"But for now… I'll teach you how to draw out its raw power."
His eyes returned to Zeo.
"Just the beginning."
A faint silence followed.
Then, more quietly—
"It's not easy. That power… it consumes the mind before anything else."
Zeo nodded.
He had already felt it.
Even without touching it.
Still… he didn't hesitate.
He raised his hand.
Closed his eyes.
And reached inward.
For a moment—
Nothing happened.
Then the world… stopped.
Time itself seemed to falter, hanging between one heartbeat and the next.
Zeo's breath caught.
Something inside him shifted.
A warmth bloomed deep within his core… subtle at first, like the first touch of sunlight at dawn.
Then it grew.
And grew.
Until it burned.
Heat surged through his veins, flooding his body in an instant. His muscles tensed as the temperature climbed unnaturally fast, his skin prickling as if it could no longer contain what was building inside him.
Shin stepped closer.
Not interfering.
Just watching.
Ready.
The air around them began to distort.
Zeo's breathing grew heavier, uneven—each inhale sharper than the last.
His hand trembled.
Then—
Light flickered to life.
A small flame formed in his palm.
Weak.
Unstable.
But alive.
Zeo's eyes widened slightly.
"It feels…" his voice wavered, barely above a whisper, "…different."
Not like the others.
Not like anything he had ever touched before.
This wasn't just power.
It responded.
Like it was aware.
"…like it's alive."
The flame pulsed.
And in response… it grew.
Slowly at first.
Then faster.
Too fast.
The heat intensified, pressing against his skin like a rising tide. It felt like holding something far too vast within something far too small—like trying to contain an ocean within his hands.
No—
Worse.
Like holding a star.
Zeo gritted his teeth.
Focused.
Pushed harder.
He needed control.
A reason.
Something to anchor himself—
But then—
He looked at it.
Truly looked.
And in that moment… he understood.
This wasn't power meant to be held.
It was meant to be released.
To consume.
To erase.
To burn everything in its path until nothing remained.
His breath stopped.
Fear crept in.
Just for a second.
Just one—
But it was enough.
His hand trembled.
The flame responded instantly.
It twisted… warped… and then—
Lost control.
"Zeo—"
Shin moved.
But he was a fraction too late.
The small flame collapsed inward—
Then burst.
A violent wave of heat surged outward, devouring everything in its reach. The ground shattered beneath it, cracks spreading like veins as the mirror sphere itself began to fracture under the pressure.
Zeo tried to but fire lashed back against him, scorching his hand, the pain sharp and immediate.
The sphere trembled.
Then—
It broke.
The explosion didn't just destroy—it erased.
Space folded in on itself as the artificial world collapsed, unable to withstand the unleashed force.
In that instant, Shin reached him.
A firm grip.
A sharp pull.
And the world shifted.
They reappeared outside the sphere just as it imploded behind them, the remaining heat waves bursting outward in a final, violent surge before fading into nothingness.
Silence followed.
Heavy.
Zeo staggered slightly, his breathing ragged, each inhale scraping against his chest. His hand burned, skin reddened and trembling from the backlash.
Shin looked at him.
Calm as ever.
Unreadable.
Without a word, he signaled for the healers.
They arrived quickly.
As Zeo was lifted to be taken away, his gaze lingered for just a moment.
"…Sorry," he muttered.
Then he was gone.
The space fell quiet once more.
Shin remained where he stood.
Still.
Unmoving.
Slowly… his expression shifted.
Not outwardly.
But something in his eyes darkened.
A thought surfaced—unwelcome, persistent.
Did I make the same mistake again…?
His hand clenched.
"…like with Zaraf… back then."
The name lingered in the air, heavy with something unspoken.
And for the first time since the beginning of the lesson—
Shin didn't look calm.
He looked… uncertain.