Summer arrived abruptly.
One day the mornings were gentle and cool, the next the sun rose heavy and insistent, pressing warmth into skin and bone alike. Cicadas began their relentless chorus, and the air itself seemed to vibrate with motion.
Kai welcomed it.
Heat revealed weaknesses quickly.
He stood barefoot in the clearing at dawn, sweat already gathering at his temples. The scarf lay folded neatly at the edge of the stone—removed, deliberately. Today required nothing extra. No anchors. No comfort.
Just him.
Just breath.
Just motion.
Six years old, he reminded himself.
And about to take a risk.
Sun Breathing had settled into him now—not explosively, but thoroughly. His lungs accepted it. His muscles remembered the rhythm. His heart no longer panicked when warmth bloomed behind his ribs.
That meant one thing.
It was time.
"Only the first," he murmured to himself. "Only the first."
In his past life, the First Form was deceptively simple.
A single step.
A single strike.
Absolute commitment.
And absolute punishment for error.
Kai inhaled.
Deep—but not forced.
The air filled him, and warmth answered instantly, spreading outward like dawn breaking across a still horizon.
[Breathing synchronization: stable.]
[Warning: Movement integration untested.]
"I know," Kai whispered.
He opened his eyes.
---
Foot forward.
Not fast.
Precise.
His body leaned slightly, weight transferring smoothly from heel to toe. His arms moved in coordination—one pulling back, the other extending forward in a clean, deliberate arc.
In his mind, he saw it.
Sun Breathing, First Form: Waltz of Radiance.
He exhaled sharply.
The warmth surged.
Too much.
Pain flared instantly—white-hot and merciless—tearing through his shoulder and down his spine.
Kai cried out and stumbled, collapsing to one knee as the breath broke apart violently.
[Emergency response triggered.]
[Muscular overload detected.]
He gasped, clutching his arm, teeth clenched hard enough to ache.
Stupid, he thought fiercely. Too fast.
His vision blurred for a moment, spots dancing at the edges.
But—
No lasting damage.
He forced his breathing steady again, slower this time, grounding himself.
Adaptation successful, the system noted.
Kai laughed weakly. "That's one way to phrase it."
He stayed kneeling until the pain dulled to a deep ache.
Failure—but not catastrophe.
That alone was progress.
---
He didn't try again that morning.
Pushing after failure was how he'd broken himself once before.
Instead, he walked home slowly, each step measured, cataloging sensations. The ache. The warmth. The precise moment where control had slipped.
Form before force.
Always.
By midday, Mitsuri found him sitting beneath the wisteria tree, eyes closed.
"You're sweaty," she announced. "And quiet."
He opened one eye. "Those are related."
She plopped down beside him. "You trained too hard again."
"Yes," he admitted.
She tilted her head. "Did it hurt?"
"…Yes."
She frowned immediately. "That's bad."
"Not always," Kai said gently. "Pain teaches."
She crossed her arms. "I don't like teachers like that."
He smiled faintly. "Neither do I."
She studied him for a moment longer. "You're trying something new."
It wasn't a question.
Kai hesitated, then nodded. "A step forward."
"Is it dangerous?"
"…Yes."
She didn't hesitate. "Then don't do it alone."
The simplicity of the statement caught him off guard.
"I don't mean copying you," she added quickly. "I mean—tell me when it hurts. So you don't pretend it doesn't."
Kai looked away.
"I'll try," he said.
She beamed. "Good!"
---
That evening, Mitsuri's father stopped Kai as he passed by.
"You're limping," the man said bluntly.
Kai paused. "…Slightly."
"Come," he said, already turning. "Hachiro's place."
"I'm fine—"
"That wasn't a request."
Kai sighed internally and followed.
Hachiro prodded his shoulder with practiced fingers.
"Overuse," the doctor concluded. "But clean."
Kai relaxed.
"Still," Hachiro continued, eyes sharp, "you're six."
"Yes."
"You want to be eight?" Hachiro asked dryly.
Kai smiled faintly. "Ideally."
"Then pace yourself," the old man snapped. "Power doesn't forgive impatience."
Kai bowed deeply. "Understood."
As they left, Mitsuri's father spoke quietly.
"You're not hiding it well."
Kai met his gaze. "I'm not hiding. I'm managing."
The man grunted. "See that you do."
---
The second attempt came two days later.
At dawn.
Same clearing.
Same stance.
But this time—
Kai visualized restraint.
Inhale.
The warmth came, steady and obedient.
He stepped forward again, slower, letting the motion pull the breath rather than forcing the breath to drive the motion.
Exhale—controlled, sharp, brief.
His arm extended.
The air itself seemed to part.
Not violently.
Cleanly.
Kai completed the motion and froze, breath held.
No pain.
No tearing sensation.
Just heat lingering along his arm, like sunlight after a cloud passes.
[Form execution: partial success.]
Kai exhaled fully and laughed—soft, breathless, incredulous.
"I did it," he whispered.
Not perfectly.
Not powerfully.
But correctly.
---
The third attempt was smoother.
The fourth—better.
By the fifth, his legs trembled with fatigue, sweat dripping freely, but his breathing remained intact.
He stopped immediately.
Enough.
As he sat catching his breath, a familiar presence approached.
"You did something cool, didn't you?" Mitsuri asked, peeking from behind a tree.
Kai blinked. "How long have you been there?"
"Long enough," she said proudly.
He sighed. "You shouldn't spy."
She grinned. "You shouldn't glow."
He froze. "…I what?"
She squinted. "Just a little. Like the air got bright for a second."
Kai's heart pounded.
Was it visible?
He relaxed slowly. "You imagined it."
She hummed. "Maybe."
But her eyes sparkled.
---
That night, Kai lay awake longer than usual.
The First Form echoed in his muscles, in his breath, in the memory of motion.
It wasn't just a technique.
It was a declaration.
I am moving forward.
Slowly. Carefully.
But undeniably.
Sun Breathing no longer lived only in stillness.
It had taken shape.
And once something took shape—
It could be refined.
Strengthened.
One form at a time.
Outside, the cicadas screamed into the darkness, relentless and alive.
Kai smiled faintly.
Let the world grow louder, he thought.
I'll meet it—step by step, in the light.