C15 Advancement

Days melted into one another in a steady stream.

Almost in the blink of an eye, more than half a year had zipped by since Tenno and his friends had embarked on their journey at the Ninja School.

The New Year had brought another candle to both Tenno and Tiantian's birthday cakes, ushering them into the age of seven.

The winter break had slipped away almost unnoticed, and the buzz of school resuming was in the air.

In the span of those six months, Tenno, Tiantian, and Lee Rock had all evolved remarkably.

Of the three, Tenno's prowess had skyrocketed at an astonishing rate.

The weights binding his legs had soared from 30 kilograms to an astounding 100 kilograms – almost the equivalent of an adult woman's weight.

The notion of a seven-year-old managing such a load was nothing short of incredible.

It was the kind of thing that would leave most people in disbelief.

The sound of explosions rumbled from afar.

At the Konoha training grounds, Lee halted his training to look towards Tenno's area.

"Just how powerful has Tenno become?" Lee Rock asked, curiosity piqued as he turned to Tiantian, who sat casually on a wooden post.

"Why don't you take a wild guess?" Tiantian said with a sly smile. "Apart from Mr. Guy, I bet no one really grasps the full scale of my brother's strength."

Next door, Tenno was receiving one-on-one instruction from Guy Might.

"Are you ready, Tenno?" Guy Might asked, his tone serious.

"I'm ready," Tenno nodded with determination.

"Then let's begin!"

"Yes, Mr. Guy!"

As dusk crept in, a gentle spring breeze played through Tenno's long black hair, which fluttered freely.

Narrowing his eyes, he locked his gaze onto the wooden stake twenty meters away.

With the speed of an arrow released from its bow, he surged forward.

His movements were seamless, devoid of any pause.

Tenno's muscles coiled, his heart thumping at its peak.

Observers might think he was about to roll his eyes back in concentration.

His footsteps landed with the weight of boulders, the ground visibly fracturing with each step.

In a powerful leap, he shot out his right leg.

His waist twisted, his spine rippling like a dragon in full flight. In the next instant, he channeled all his momentum into a terrifying force.

His leg struck the wooden stake with a resounding crash.

"Konoha Whirlwind!" Tenno shouted.

The stake exploded on impact, wood shavings of various sizes burst outward, breaking into numerous pieces. Inside, the stake seemed to have withstood a violent explosion, with a web of cracks spreading from its center.

What a terrifying display of Body Technique!

If this kick were to land on a person, it would instantly shatter their capillaries and displace internal organs. Should it strike the skull, it would be instantly fatal.

On the sidelines, Guy Might's applause rang out, a sign of his extreme satisfaction with Tenno's performance. Despite only half a year of training with him, Tenno had made such impressive progress. He had executed the Konoha Whirlwind flawlessly, filling Guy Might with immense pride as his teacher.

"Tenno, your performance was simply outstanding! I thought, given your youth, it would take at least two years to master the Konoha Whirlwind. But you've captured the essence of this Body Technique in just six months—beyond my wildest expectations!" Guy Might praised.

"Mr. Guy, I couldn't have done it without your guidance," Tenno said with a grateful smile.

Then, with a spark of ambition, he asked, "So, Mr. Guy, am I ready to start training for the Great Konoha Whirlwind now?"

The Konoha Whirlwind and the Great Konoha Whirlwind were two entirely different levels of power within the Body Technique hierarchy. The Great Konoha Whirlwind required a practitioner's physical condition and muscular strength to be several times greater than that needed for the Konoha Whirlwind. Its lethal force was also significantly stronger, comparable to the powerful Ninjutsu of Tsunade—a definitive Level B Body Technique.

"Don't rush into it, Tenno," Guy Might cautioned, tempering Tenno's enthusiasm with a shake of his head. He patiently explained, "The Great Konoha Whirlwind demands tremendous physical strength. You need to be able to handle a load of over 100 kilograms before attempting it. I've thoroughly analyzed the developmental histories and Body Technique training data of numerous ninjas. According to my calculations, the maximum weight a seven-year-old's body can handle is just 75 kilograms. High-intensity, high-pressure Body Technique training at this stage could cause irreversible damage to your skeletal structure. Remember, in Body Technique training, rushing can hinder your growth and development."

"Don't rush into things, Tenno," Guy Might said, shaking his head and declining Tenno's suggestion.

He patiently explained, "The Konoha Whirlwind demands a great deal of physical strength. Your body needs to be able to handle a load of over 100 kilograms before you can learn it."

"I've thoroughly studied the growth experiences and Body Technique training data of many ninjas. Based on my calculations, a seven-year-old child's body can only withstand up to 75 kilograms. High-intensity, high-pressure Body Technique training could cause irreversible damage to your bones. So remember, in Body Technique training, you must not be overly hasty, or it could negatively impact your growth."

When it came to Body Technique, Guy Might was dead serious.

As an absolute master of Body Technique, Guy's research in the field even outshone that of his father, Duy Might.

It was precisely because of his formidable strength that he had earned his place among the Elite Jonin.

To have such a teacher guiding his Body Technique training was truly a privilege.

"Mr. Guy, what should I do next?"

Guy Might replied with a smile, "For now, you can take it a bit easier with the Body Technique training and revert to the most basic physical conditioning."

"In the next year, you need to increase your weight-bearing capacity to 75 kilograms. Then, when you turn eight, you should aim to raise it to 100 kilograms. After you've built a strong foundation, I'll teach you the Konoha Whirlwind."

"I understand, Mr. Guy," Tenno responded, nodding in agreement.

Over the past six months, Tenno had focused primarily on Body Technique training, which meant his weapon forging practice had been neglected. A big part of this was due to running out of ore varieties at home.

Without the right materials, forging was impossible.

Fortunately, just two days ago, he received good news from his parents. They were finalizing their latest deal and would soon return from the Iron Kingdom with a substantial haul of goods!