The year 60 of the Konoha was a subtle yet pivotal time.

  In just three years, by year 63, the Child of Destiny would graduate, marking the beginning of the story of Naruto.

  Before transmigrating, Link had read tless Naruto fan novels. In those stories, the protagonists usually arrived early. Yet, he arrived te.

  This year, Uzumaki Naruto was already nine years old, while Link was only seven—two years youhan the protagonist. In three years, Naruto would graduate, and Link hadn’t even enrolled in the Ninja Academy.

  Initially, Link’s pn was simple: enroll in the Ninja Academy, stay close to Konohamaru, and ride the wave to the grand finale. Let the Child of Destiny save the world—after all, when the sky falls, the tall ones bear the weight.

  No cheat ability, no unique bloodline, and raordinary talent—what could a transmigrator even do in a world that pced immense value on lineage and natural aptitude? Surviving safely was good enough.

  But now, with a mutated ninjutsu cheat, Link’s ambitions shifted slightly.

  Not to save the world or defeat the Otsutsuki —but at least to climb higher, gaier strength and status, and secure his safety and fort.

  So, he o act quickly.

  Quickly enroll in the Ninja Academy. Quickly graduate. Quickly rise in rank. Quickly…

  “Time waits for no one,” Link muttered as he stood up. His previously rexed mood tightened into focus. In just over ten days, the Ninja Academy would hold its enrollment. He couldn’t afford to sck off.

  He po practice the Substitution Jutsu to see its effects and then start learning the Binding Jutsu.

  As for Earth Release: Headhunter Jutsu, any jutsu with aal prefix required chakra nature transformation, which was currently far beyond his capabilities. There was o overreach.

  Time was running out. He o master his jutsu, secure admission to the academy, and graduate ahead of schedule.

  Leaving Ichiraku Ramen in a hurry, Link decided to grab his scroll at home before heading to the training grounds.

  …

  The Konohagakure had over fifty training grounds scattered throughout. Apart from the now-restricted Training Ground Zero and se ones oskirts that were locked on normal days, most training grounds were open to everyone.

  This made it easy to find a secluded spot for solo ninjutsu practice. Even if there was some colteral damage, the vilge’s regur maintenance made it a hidden perk for ninjas.

  As Link approached his apartment, he saw an e-cd figure being dragged away by a in in a gree.

  It wasn’t an unon sight.

  Link had lost t of how many times he’d seen Uzumaki Naruto being hauled off for pranks, skipping csses, or ht destru. Even knowing Naruto was the protagonist and the ails’ jinchuriki, Link had no i in cozying up to him.

  He trolled even his gaze, gng briefly before looking away.

  Returning home, Link shouldered the oversized scroll and sprioward the raining ground.

  …

  "Indeed... it works."

  Link held a longsword with a peculiar expression. During practice, he had tried using both the e Jutsu and Transformation Jutsu simultaneously, which led to an intriguing discovery.

  After transf his left arm into a longsword and holding it with his right hand, not only could he use it for attacks, but any damage the on sustained was erased upon g the jutsu.

  A supremely ve bo.

  Sihe on art of his own body, he wielded it effortlessly. Even though it was lohan his body, he could swing it without any risk of injuring himself.

  The sword sshed through the air with precision. While he cked formal swordsmanship training, the transformation was based on a sword his father once owned. Its whereabouts were unknown, likely lost without being preserved as an heirloom.

  "Crack—thud!"

  A tree was felled, followed by a stone nearby splitting apart with a sharp sound, scattering fragments.

  The bde was as sharp as he remembered.

  Looking at the unscathed edge, Link hat it was signifitly tougher than his own body. If faced with an attack he couldn’t block—

  Wouldn’t a e Jutsu suffice?

  Link chuckled wryly. It seemed better to transform into a more lethal object than something durable, given the e Jutsu’s damage-nullifying effects.

  "But where’s the threshold for damage nullification?"

  He decided to test it. In previous trials, small cuts from a kunai pletely healed, though the pain lingered briefly.

  "g! Creak—grind!"

  Link struck the longsword with a kunai, produg an ear-pierg sound as the bde deformed slightly.

  After all, it wasn’t a special on—just a reasonably sharp bde.

  “No pain.”

  He cluded that objects transformed through the Transformation Jutsu cked sensation. Cutting, smashing, or bending them didn’t cause any pain.

  “First, cel the Transformation Jutsu.”

  When he ehe jutsu, the deformed longsword reverted to his equally deformed arm, and a wave of excruciating pain overwhelmed him.

  "Argh!"

  He colpsed, trembling and gritting his teeth, as agony coursed through his body.

  The Transformation Jutsu didn’t erase injuries. Instead, any damage sustained while transformed was fully transferred back to his body upon celtion.

  "Poof!"

  Releasing the e Jutsu instantly nullified the pain signals, leaving him momentarily disoriented.

  "From now on, the Transformation and e Jutsu must be used together."

  Link shuddered at the memory. The pain from twisted bones, muscles, and tendons far exceeded that of training injuries. It was unbearable.

  Thankfully, the e Jutsu mitigated it. Without that safety , he might have passed out from the sheer pain.

  Ultimately, he didn’t discover the upper limit for the e Jutsu’s damage nullification. The reason was simple—it hurt too much.

  Humans had a finite capacity for pain tolerance. Pushing beyond that limit could lead to death, regardless of one’s willpower.

  People dying from pain was not unon.

  "My stamina is almost gone."

  After several rounds of testing, Link’s stamina was below half, signaling the end of this practice session.

  Both physical activity and chakra refi ed stamina. When stamina was nearly depleted, hunger and fatigue naturally set in, triggering the body’s internal warning system to prevent overexertion.

  However, chakra refi could bypass these warnings, pushing the body beyond safe limits. This was why managing stamina and chakra usage was a ninja’s top priority.

  From this, a fual rule of the Naruto world emerged:

  If chakra is pletely exhausted, the person will die.