The next morning came with pain.

  Not the sharp kind that screamed injury,

  but the deep, stubborn ache that clung to bone and tendon—the kind that reminded Darwin of every mistake he’d made the day before.

  He welcomed it.

  Pain meant his body was changing.

  Darwin rose before dawn, his movements slower now, more deliberate. The world outside was dim and colorless, the Haze Forest wrapped in pale fog that blurred the edges of the trees. His breath steamed softly as he stepped into the clearing, boots sinking slightly into fresh snow.

  He did not draw his sword.

  Not yet.

  Today was about something else.

  ---

  Darwin stood still, feet shoulder-width apart, knees slightly bent.

  He inhaled.

  Slow.

  Deep.

  Controlled.

  The cold air slid into his lungs and sank downward, gathering in his core. He focused—not forcing it, not rushing—until he felt that faint spiral begin to form again.

  The cyclone was still weak.

  Unstable.

  But it was there.

  Iron Tempering.

  Gajisk’s words echoed in his mind.

  *Your body adapts to stress instead of resisting it.*

  Darwin exhaled carefully, guiding the breath outward instead of letting it burst free. The ache in his thighs dulled just a little. His shoulders loosened.

  He inhaled again.

  This time, he felt it more clearly—air pressing gently against muscle and bone, spreading outward like heat through metal.

  Not strength.

  Endurance.

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  “Good,” Gajisk’s voice came from behind him. “You’re not fighting it today.”

  Darwin didn’t turn. “If I fight it, I break.”

  “That’s learning,” the blacksmith replied.

  ---

  Gajisk stepped into the clearing, carrying nothing but a short iron rod in one hand.

  “No blade today,” he said. “If your footwork can’t stand on its own, your sword won’t save you.”

  Darwin nodded.

  He lowered into his stance.

  Low center.

  Weight forward—but not too much.

  He stepped.

  Dragged his foot across the snow.

  Shifted his weight.

  Anchored.

  Leaned.

  No swing followed.

  Just movement.

  His legs burned almost immediately.

  The urge to rush—to finish the sequence and rest—pressed hard against his thoughts. He ignored it.

  Again.

  Step.

  Drag.

  Shift.

  Anchor.

  Lean.

  The third repetition exposed a flaw he hadn’t noticed before.

  When he leaned forward, his upper body tipped slightly too far, forcing his back leg to compensate. It was subtle—but once he felt it, he couldn’t unfeel it.

  Darwin stopped.

  Adjusted his stance by a finger’s width.

  Lowered his hips just a fraction.

  Tried again.

  This time, the movement felt… heavier.

  Not slower.

  Grounded.

  Gajisk watched closely. “That’s it. You felt it, didn’t you?”

  Darwin nodded. “My balance wasn’t wrong. My center was.”

  A faint smile tugged at Gajisk’s beard. “Most swordsmen never figure that out.”

  ---

  The training continued for hours.

  Movement without a blade.

  Breathing under strain.

  Holding posture even when muscles screamed to collapse.

  Darwin’s shirt was damp with sweat despite the cold. His legs trembled constantly now, the strain creeping deeper with every repetition.

  He inhaled again.

  Forge Breathing.

  The cyclone formed—but this time, it resisted.

  His chest tightened.

  His vision swam.

  Too much.

  Darwin exhaled sharply and staggered back a step, catching himself before he fell.

  Gajisk was at his side instantly. “That’s your limit.”

  Darwin clenched his jaw. “No. I can still—”

  “If you push past that,” Gajisk interrupted, “your breathing collapses. You don’t get stronger. You just get injured.”

  Darwin hated how calm the blacksmith sounded.

  “How do I know when to stop?” Darwin asked.

  Gajisk pointed to Darwin’s chest. “When the breath starts pushing back instead of flowing.”

  Darwin frowned. “Pushing back?”

  “You’ll feel it,” Gajisk said simply. “Air stops obeying you. That’s the line.”

  Darwin looked down at his trembling legs.

  He had felt it.

  That resistance.

  That invisible wall.

  And stopping before breaking through it felt… wrong.

  But necessary.

  ---

  By evening, Darwin sat at the edge of the clearing, back against a tree, staring at his hands.

  They were shaking.

  Not from weakness.

  From exhaustion earned honestly.

  Gajisk tossed him a flask. “Drink.”

  Darwin took a careful sip, warmth spreading through his throat.

  “You didn’t make big progress today,” Gajisk said. “But you made the right kind.”

  Darwin looked up. “Slow.”

  “Exactly,” Gajisk replied. “If you rush this, your sword style dies before it’s born.”

  Darwin exhaled quietly.

  He thought of the slash he wanted.

  The one that felt perfect in his mind.

  The one his body still refused to allow.

  “I’ll wait,” he said at last. “But I won’t stop.”

  Gajisk nodded once. “That’s all I needed to hear.”

  As night crept into the forest, Darwin closed his eyes and breathed—slowly, carefully—letting the faint cyclone settle.

  Iron Tempering wasn’t complete.

  But it was forming.

  And for the first time, Darwin understood something important:

  Power wasn’t something he could force.

  It was something he had to **forge**.

  Tomorrow, the body would push back again.

  And tomorrow—

  he would answer.