The concept of Aether capacity was not something that could be seen with the eyes—but it could be felt by those who trained long enough.
Every living being possessed an Aether Meridian—a core within the body where Aether was stored, circulated, and refined. But no matter how gifted one was, that core was never infinite.
It had limits.
"At your current state," Arden began, his voice steady as the wind moved across the training grounds, "your Aether is not lacking."
He looked across the five.
"Your capacity is."
He stepped forward, drawing a small line into the dirt with his foot. "Think of your Meridian as a vessel." A pause. "If you pour too much into it without strengthening its structure…"
His foot pressed deeper.
"…it breaks."
Silence followed.
"That is why most Aether users plateau," he continued. "They chase output. More power. More release." His gaze sharpened.
"But power without capacity…is self-destruction." He raised a hand slightly.
"Aether capacity is not given. It is built."
"Through refinement."
"Through control."
"Through repetition of correct usage."
He lowered his hand. "Every controlled movement… expands your limit."
"Every precise allocation… strengthens your Meridian." A brief pause. "Attack and defense are not separate disciplines."
"They are the same process—applied differently."
The five listened in silence.
"And that," Arden said, turning slightly, "…is your next training."
Combat Precision Training.
The atmosphere shifted.
"This is not a test of strength." His gaze landed on Kael. "It is a test of decision."
Then to Seris. "Of awareness."
Finally—Renn. "And of control under motion."
Arden stepped back, giving them space. "The rules are simple." He raised one finger. "The attacker declares their intent."
A pause.
"For example—"
"Thirty percent Aether. Right hand." He clenched his fingers slightly. "The defender responds. Thirty percent. Left forearm."
Another pause.
"You will strike."
"You will block."
"No excess. No deficiency." His voice hardened. "Only what is needed."
The concept settled.
"At first, you will move slowly. You will think, you will observe. You will learn how your opponent moves Aether."
He looked at them one by one.
"And when your decisions no longer require thought…" His tone lowered. "…we increase the pace. Do it until your body moves before your mind does."
No one spoke. They understood the instructions. This was different from anything before. This was not control in stillness. This was control in chaos.
Pairing
Arden stepped aside."Form your pairs."
Kael stepped forward first, driven by instinct and confidence, immediately choosing Lio as his opponent. Lio accepted without resistance, meeting him with calm precision, his posture already aligned for control rather than force.
On the other side, Taren hesitated. His uncertainty showed as his attention drifted toward Seris, who had already taken her stance
Arden turned. His gaze settled on Renn.
"…Renn, pair with me."
Silence fell heavier this time. Kael glanced over. Renn stepped forward, no hesitation.
"…I understand."
Arden took his position. Renn exhaled slowly.
"…Twenty percent — Right arm."
Arden's lips curved faintly. He raised his hand slightly.
"…Thirty percent — Left elbow."
Aether shifted rapidly across limbs, flowing from strike to guard, from guard to counter—faster, sharper, more precise with every passing moment.
Then—
Speed broke.
The exchanges accelerated to the point where the naked eye could no longer follow. Movements blurred. Impacts echoed a fraction too late, as if sound itself struggled to keep pace
Among them, two figures stood apart. Renn and Captain Arden.
Their clash carved through the air with such intensity that the space around them reacted. Pressure built with every strike—subtle at first, then unmistakable. The wind itself bent around their movements, circling outward in faint bursts with each collision of Aether.
It was no longer training.
It was refinement under pressure.
Across the field, Taren faltered. Just for a moment, his attention broke, drawn instinctively toward the overwhelming exchange between Renn and Captain Arden.
That single lapse, Seris' strike landed clean across his face before he could react. Taren dropped, stunned, his body hitting the ground with a dull thud.
Kael noticed. So did Lio. Sparked a sense of competition between the two pairs. Without a word, something in their exchange shifted. Their pace rose. Faster. Sharper.
Kael's strikes grew heavier, more aggressive—forcing Lio to respond with tighter, more precise control. Each movement became deliberate, efficient, leaving no space for hesitation.
The field intensified.
Three simultaneous battles.
All escalating. All pushing beyond their limits. Then—
"Stop."
Arden's voice cut through everything. Instantly, all movement ceased.
The aftermath settled in.
Renn stood still for a moment, chest rising steadily, the strain finally catching up as the Aether within him calmed. Nearby, Kael exhaled heavily, frustration and effort visible in every breath. Lio lowered his stance, composed—but visibly drained.
Seris stood apart.
As if the entire exchange had merely been observation. On the ground, Taren groaned softly, wiping his cheek with a wince.
That Night
The village had fallen into quiet.
The vast grasslands of Lumisdale rested beneath a sky filled with distant stars, the air cool and still.
Outside the hut—
Renn sat alone.
The events of the day lingered. The training, the speed and the pressure.
Footsteps approached softly from behind.
Seris stepped out from the hut, the curtain shifting quietly as she moved. She paused for a moment, then walked toward him, stopping just beside where he sat.
"You're still awake."
Renn didn't look at her immediately.
"…Couldn't sleep."
A brief silence passed between them. The wind moved through the grass once more.
Seris lowered herself beside him, her gaze directed toward the horizon.
"…You've been pushing yourself harder than the rest of us."
Renn let out a quiet breath.
"…I need to."
"…Why?"
The question came simply. Without pressure. Renn hesitated for a moment, then answered.
"…To become strong."
Seris didn't respond right away. She looked ahead, thoughtful.
"…Everyone wants to become strong." A pause. "But not everyone knows why."
The words settled. Quiet, but heavy. Renn's gaze lowered slightly.
"…Then what about you?" He turned his head slightly toward her. "Why do you want to become strong, Seris?"
Another pause. For the first time, she didn't answer immediately. Her eyes softened, just slightly.
"…I made a promise."
The wind passed gently between them. "…And I can't keep it if I stay weak."
Silence followed. But something shifted. Because those words felt familiar. Too familiar.
Renn's expression changed.
A voice from his memory. Soft, fading.
His mother.
"Use your strength… to protect those who cannot protect themselves…"
The night remained still.
But within Renn, something began to move.