All Of The Worlds Will Be Mine

"You little brat! Didn't I just tell you not to use your chakra recklessly?!"

Renji Uzumaki's voice thundered across the empty field, echoing among the trees that bordered the training grounds. His hand was still resting on Elric's head from helping him up, but now it twitched ominously, veins popping as his eyebrow twitched with fatherly frustration.

Elric, cheeks still puffed out from spitting dirt moments earlier, looked up with an awkward grin.

"Ehehe… sorry?"

Renji didn't smile back.

"You have way more chakra than the average person—heck, even more than me!" Renji snapped, folding his arms. "You think you can just control it naturally without any practice? What do you think chakra is, some kind of magic toy?"

He sighed and began pacing slightly, switching into lecture mode.

"Listen carefully, Elric. This is the first rule of using chakra: The more you have, the stronger your jutsu will become—but that also means it becomes equally harder to control. It's not a blessing if you don't learn how to handle it."

Elric blinked up at him with what looked like interest.

"But even the strongest techniques—like S-Rank jutsu—are hard not because of power, but because of the precision they demand. You need to move a massive amount of chakra with pinpoint accuracy. One mistake, and you're the crater instead of the creator."

He jabbed a finger at the small dent Elric had made in the ground earlier.

"That's why before anything else, before even learning jutsu… you need to master chakra control!"

Renji took a deep breath, ready to continue, but then… he stopped mid-sentence.

Because his son… wasn't listening.

Instead, Elric was staring up at the sky. Eyes narrowed. Expression serious. As if contemplating the mysteries of the universe—or perhaps counting the clouds to escape the lecture.

Tick.

A visible tick mark pulsed on Renji's forehead.

His right hand rose automatically.

BONK!

"Gah! Dad!" Elric winced, clutching his head as Renji's palm landed cleanly.

"Don't give me that look!" Renji barked. "Every time you don't want to do something, you stare at the sky like some philosopher pretending to unlock life's secrets! I invented that look! You think you can fool me?!"

"I was thinking something important," Elric grumbled with exaggerated suffering. "Really important…"

"Important, my foot."

Renji's eyes flared with fresh annoyance, his face starting to resemble an angry tomato. Elric wisely shut up this time. He rubbed his chin—still sore from its earlier introduction to the earth's surface. Oddly enough, the scratches were already gone, as if nothing had happened.

Renji noticed too.

He stared quietly for a moment, his anger slowly simmering down into something softer. Something proud.

He really is going to be something incredible someday…

Elric had nothing particularly special by traditional standards. No godlike bloodline, like Senju, or Uchiha.

But somehow… everything about him felt special.

And in a way, that was even rarer.

Renji's eyes grew thoughtful. Elric hadn't awakened any new or exotic bloodline. No special kekkei genkai or hidden trait. And honestly… that was both unfortunate—and a bit lucky.

It's dangerous to awaken unknown bloodlines, Renji mused. Especially weak ones.

Bloodlines weren't always blessings. A person's talent was limited, and bloodlines—especially rare or newly manifested ones—required massive effort just to develop into something usable. And time… time was the biggest enemy.

Ten, twenty years of effort just to make a bloodline technique battle-ready?

Even geniuses couldn't fight that clock.

That's why most clans developed their bloodlines over generations. They polished them like gems, each ancestor adding a little more to the legacy—until their descendants could wield it like second nature.

And that's exactly what Elric had inherited.

The Uzumaki bloodline.

Thousands of years of refinement. Centuries of careful development by countless geniuses. Their chains, their vitality, their chakra—it had all been passed down and compounded, waiting for a worthy heir.

And Elric was born with it in full bloom.

At five, he had already manifested the legendary Adamantine Chains. At six, his chakra reserves had matched Renji's own. And his regeneration?

Absolutely absurd.

So much so, Renji often wondered if he could survive his own heart being ripped out.

They hadn't tested it, of course. But the thought wasn't far-fetched.

He's not just a child anymore, Renji thought. He's something beyond even the clan's expectations.

"Father!" Elric's voice suddenly snapped him out of his thoughts. "You're spacing out again!"

Renji blinked, realizing he'd stopped walking at some point.

"Oh."

He glanced around.

They were already at the training ground.

A vast expanse of grassy earth stretched out before them, dotted with training poles, boulders, and some practice dummies that had definitely seen better days. The air was calm, and the rustling leaves whispered promises of future battles and lessons.

Renji scratched the back of his head, a bit sheepish.

"Huh… guess we're here."

Elric rolled his eyes dramatically.

"Tch, and I'm the one getting bonked for zoning out."

"You want another?" Renji offered, raising his palm again.

"NO THANK YOU."

The two of them stood at the edge of the field, the sun high in the sky above them. The scent of fresh grass filled their lungs, and the breeze carried with it the future.

Today, a new journey would begin.

But first…

"Don't look at the sky again."

"I was admiring clouds!"

"No you weren't."

"Maybe a little…"

"Do I need to bonk you again?"

"Sky's clear today, isn't it, Dad?! Wow, not a cloud in sight—AMAZING!"

"...Brat."