Days passed.

  Then weeks.

  At first, nothing dramatic happened.

  No monsters.

  No glowing transformations.

  Just repetition.

  Dawn.

  Run.

  Push-ups.

  Sit-ups.

  New exercises unlocked as his level increased.

  Planks.

  Weighted squats.

  Sprint intervals.

  His body complained every morning.

  He laughed at it every morning.

  The system notifications became part of his routine.

  Level 3.

  Level 5.

  Level 8.

  The changes were subtle in the beginning.

  Nozu had always been slightly chubby.

  Not unhealthy.

  Just soft.

  Now the softness began to fade.

  His face sharpened first.

  Then his shoulders broadened.

  His arms tightened with quiet definition.

  It was not explosive muscle growth.

  It was steady.

  Earned.

  One afternoon, Yuta stared at him in class.

  “…Did you shrink?”

  “No.”

  “You look smaller.”

  “That’s rude.”

  “I mean less round.”

  The tale has been illicitly lifted; should you spot it on Amazon, report the violation.

  “That’s still rude.”

  But Yuta grinned.

  “You look good though.”

  Nozu scratched his cheek, embarrassed.

  “Don’t say it like that.”

  Even Mrs. Hoshino noticed.

  “You’re carrying the groceries easier.”

  “Secret spinach diet.”

  “You hate spinach.”

  “Don’t expose me.”

  His grandfather said nothing.

  But one morning, as Nozu lifted a heavy water container without straining, the old man nodded once.

  That was enough.

  People were happy for him.

  Genuinely.

  He had always been the one cheering others on.

  Now they could cheer for him.

  And he didn’t let it change him.

  He still stopped to talk during his runs.

  Still made bad jokes.

  Still tripped occasionally.

  He was stronger.

  Not different.

  Then came the practical exam.

  In this world, magic education was not optional.

  Theory mattered.

  Control mattered.

  But so did endurance.

  So did raw physical resilience.

  Because magic without a body capable of handling it was dangerous.

  The field buzzed with nervous energy.

  Students lined up to demonstrate casting.

  Basic offensive spells.

  Basic defensive reinforcement.

  Accuracy.

  Control.

  Sustain.

  Nozu stood in line, relaxed.

  He was not magically gifted.

  Average mana capacity.

  Average control.

  That had not changed.

  What had changed was everything else.

  When his turn came, he stepped forward.

  He cast the assigned spell.

  A simple compressed mana bolt.

  Clean.

  Stable.

  Nothing extraordinary.

  The instructor nodded.

  “Next phase. Endurance test.”

  Pairs were formed.

  Students would fire low output spells at each other’s defensive barriers.

  Testing reaction speed and durability.

  Nozu’s partner was a taller student known for strong output.

  “Don’t blame me if it stings,” the boy said.

  “I’ll write my will tonight,” Nozu replied.

  Light laughter from nearby students.

  They activated the exercise.

  The first bolt struck Nozu’s barrier.

  His shield shimmered.

  Stable.

  Second bolt.

  Stronger.

  His barrier cracked slightly.

  Murmurs.

  The third spell.

  Something slipped.

  Maybe overexcitement.

  Maybe unstable mana flow.

  The bolt compressed too tightly.

  It launched wrong.

  Too fast.

  Too strong.

  The instructor’s eyes widened.

  “No!”

  The spell tore through Nozu’s barrier.

  Gasps erupted across the field.

  There was no time to dodge.

  The impact landed directly against his chest.

  A sharp burst of light.

  Dust scattered.

  Silence.

  When it cleared, Nozu was still standing.

  He had slid back several meters.

  His uniform was scorched.

  Smoke rose faintly from his shirt.

  But he was upright.

  Eyes wide.

  Breathing hard.

  He blinked once.

  “…Ow.”

  The field exploded into noise.

  “That wasn’t low output!”

  “Is he okay?!”

  “He should be down!”

  The instructor rushed forward.

  “Are you injured?”

  Nozu looked down at himself.

  The impact had hurt.

  Deeply.

  But nothing was broken.

  Nothing torn.

  His body had absorbed it.

  Not with magic.

  With durability.

  “I think… I’m fine?” he said.

  The taller student who fired the spell looked pale.

  “I didn’t mean, it slipped.”

  Nozu raised a hand.

  “It’s okay. I’ve had worse from my grandfather’s slipper.”

  A few students laughed nervously.

  Tension cracked.

  But the instructors were not laughing.

  They had seen it clearly.

  That output should have hospitalized him.

  Instead, he was standing.

  Breathing.

  Embarrassed.

  The instructor narrowed his eyes slightly.

  “…Interesting.”

  Nozu scratched the back of his head.

  “I passed, right?”

  The field slowly settled.

  But whispers continued long after the exam ended.

  Something had changed.

  And people had noticed.

  That night, the system pulsed faintly.

  Physical Resistance increased.

  Milestone achieved.

  Nozu lay on his bed staring at the ceiling.

  He touched his chest where the spell had hit.

  It still throbbed.

  He smiled.

  “…I’m actually getting stronger.”

  Not for glory.

  Not for fame.

  But for the day the Blue Demon returned.

  He would not be the boy who needed protection.

  He would be the one standing.

  And the growth continued.