Byakugan: Vacuum Blade!

Hearing the shouts from outside the door, Hyuga Yu subconsciously activated his Byakugan, causing the blood vessels around his eyes to bulge along with his expanded vision.

Upon seeing that the person standing outside was just an ordinary Hyuga Clan ninja, he then dispersed the Chakra in his hands.

Strangely, the Chakra he dispersed did not scatter as normal Chakra would. Instead, propelled by another peculiar type of Chakra, it was quietly restored from Wind Release Chakra back into normal Chakra and retracted into his body.

And within the Byakugan's perspective, which could see through the human body, this normal Chakra was then decomposed again, transforming back into a more basic unit—"Stamina."

Hyuga Yu's complexion visibly became more rosy.

Then, he got up and went to the entrance, opening the door.

Standing outside was a Hyuga ninja wearing a Chunin vest. Hyuga Yu recognized this person.

Hyuga Iroha.

Fourteen years old, he was a ninja from the Hyuga Clan in the same year as Hyuga Yu at the Ninja Academy. Currently still a Chunin, he would likely be promoted to Jonin around the start of the Shippuden era, in his twenties. He was a ninja who, even with the Byakugan, wouldn't stand out much in a crowd.

Not everyone in the Hyuga Clan was like Hyuga Tetsu, who had a bad attitude towards Hyuga Yu.

At this moment, Hyuga Iroha casually greeted Hyuga Yu, "Yo, Yu, you're up early. And... you look well."

He looked Hyuga Yu up and down, pausing for a moment on Hyuga Yu's unusually rosy complexion, and smiling as he handed over a scroll.

"The clan has decided to send you to the front lines of the Kirigakure battlefield."

"But you're quite lucky, you've been assigned to the medical squad at Grass Wave Coast. Hmm, that place... how should I put it, it's quite suitable for retirement."

Grass Wave Coast was located within the Land of Fire and served as a transfer point for front-line medical patients. Those sent here had basically undergone initial emergency treatment and were waiting to be sent back to Konoha for recuperation or further treatment. The Medical Ninja stationed there were much less busy than those at Konoha Hospital in the rear.

Speaking of which, Hyuga Iroha couldn't help but joke, "If I get transferred there later, we can get together and play cards when we have free time."

"Thank you," Hyuga Yu replied with a smile, reaching out to take the scroll and shaking his head.

"However, I don't really hope we meet there, because I don't really want to help you stitch up your intestines."

Hyuga Iroha paused for a moment, then understood, and shook his head with a laugh.

"Haha, that makes sense."

Due to the special nature of the transfer point, the ninjas sent there were basically considered to have met their end. In such situations, approaching a medical ninja in the camp usually meant needing them to tidy up the remains, like stitching up intestines or wiping faces.

Theoretically, this was the job of the corpse disposal unit, but wartime situations were special, and the corpse disposal unit was just a small department under Konoha's Medical Department. Facing a vast sea of fallen ninjas, manpower was inevitably scarce.

"I still have a few transfer orders to deliver, so I'll be taking my leave now."

After seeing Hyuga Iroha off, Hyuga Yu unrolled the scroll and began to read.

It was exactly as he had guessed.

The clan's order for him was to depart the day after tomorrow, and the location for his mission was, as Hyuga Iroha had said, the medical squad at Grass Wave Coast.

This was the same location Root had ordered him to go to, just with a different person to report to.

The Hyuga Main Family ordered Hyuga Yu to report to an elderly female ninja named Furobuki. This grandmother-aged ninja was previously the vice dean of Konoha Hospital and was currently semi-retired. She was also, theoretically, the highest authority figure in the camp.

The Main Family's arrangement had done nothing wrong by Hyuga Yu; in fact, it was overly considerate.

However, Hyuga Yu merely glanced at the scroll before casually stuffing it into the scroll bag tied to his left thigh.

Then, he glanced at the clock on the wall.

5:40.

The Main Family would be leaving the village today. According to custom, they would depart at eight o'clock sharp, with three squads alternating to escort them and scout the route in advance.

Hyuga Yu had already determined the general route, so he didn't plan to follow the Main Family's convoy.

The reason was simple.

If Jonin couldn't handle the enemies, a Genin like him going there would likely be useless. Moreover, the Byakugan of the Main Family's escort team could see much farther than his own. If he were discovered, Hyuga Yu would have no way to explain his presence.

If Hyuga Genko became suspicious and, in a desperate move, used the Caged Bird, Hyuga Yu would have nowhere to appeal.

He was simply worried about Hyuga Natsu, who was caught up in this incident, and she was the only one he needed to protect... maybe Hyuga Tetsu as well, at most.

At the same time, a sharp axe needs grinding.

Seeing that he still had ample time, Hyuga Yu returned indoors and sat down again, picking up a Kunai from the table and infusing it with Chakra.

The cultivation of Ninjutsu couldn't be achieved overnight.

But this was only under normal circumstances.

Thanks to his early planning regarding his own cultivation direction, Hyuga Yu had tested his Chakra nature using Chakra paper as soon as he could crawl.

Unfortunately, he wasn't a genius like Hatake Kakashi; his Chakra nature was only "Wind."

Furthermore, he had begun practicing the nature transformation and shape transformation of Wind-style Chakra as soon as he learned to refine Chakra for the first time.

There were many kinds of Chakra nature transformations. For instance, water could be transformed into glue or muddy water through nature transformation, and fire could be transformed into gunpowder, steam, or high-temperature objects through nature transformation.

And for the wind nature, the most common and easiest to replicate is sharpness, or more vividly, a blade.

Following the process Sarutobi Asuma taught Naruto for wind-natured Chakra transformation:

Chakra nature transformation training has a total of three stages:

Stage One: Strengthening the nature transformation.

Simply put, it's about finding the direction for Chakra's nature to change.

The process is also very simple: infuse Chakra into a leaf until it shows signs of cracking and cutting.

Stage Two: Increasing the instantaneous transformation volume.

In Shippuden, Naruto trained this by summoning a bunch of clones to cut down a waterfall, emphasizing brute force and shared experience.

Hyuga Yu didn't have that much Chakra, so he used a method of slow, steady effort. That is, as long as his stamina was sufficient, he would try to fuse Wind Release Chakra to cut the ground or a large rock placed not far from his doorstep.

After a full seven years of this slow, steady effort, Hyuga Yu pressed his hand against the riddled rock, and it split in two.

Meanwhile, Hyuga Yu could instantaneously clear out all Chakra except that needed for survival, and using only Chakra, he could cut a straight groove about one millimeter thick and 3 meters deep into ordinary ground.

It wasn't that Hyuga Yu couldn't cut deeper than three meters, but rather that his Chakra reserves only allowed him to cut that much.

Reaching the point where he could instantly release all of his Chakra meant this stage of training was perfectly completed.

Stage Three, and the most difficult stage:

Fusion with jutsu.

Naruto almost ruined himself training this stage. The process of fusing Wind Release with the Rasengan continuously damaged his hand meridians. It was only thanks to the Uzumaki clan's physique combined with the Nine-Tails' buff that he was durable enough, allowing Naruto to endure the entire training process purely through his terrifying recovery ability.

However, for Hyuga Yu, who possessed the Byakugan and practiced the Gentle Fist, this was the easiest step.

Just like now--

Hyuga Yu lightly gripped a Kunai and infused it with Chakra.

The sharp, prickly Wind Release Chakra, which continuously emitted piercing explosions, was surprisingly obedient in his hand, like a cat rubbing against his legs, begging for comfort.

Any signs of occasional loss of control were, in the next instant, decomposed and reassembled under the influence of another peculiar Chakra.

Not a single trace of Chakra was wasted in the entire process.

Even...

Even the process where Shimura Danzo had to spit and form the "壬" hand seal to attach Wind Release Chakra to a Kunai to form a Vacuum Blade, was directly skipped by Hyuga Yu!

The next moment, A pale yellow wind blade, about 1 meter long and emanating sharp sword energy, suddenly shot out from the Kunai held by Hyuga Yu!