Instantaneous Cultivation

In the middle of an unnamed forest, Hyuga Yu stared coldly at Ao of the Mist and his group, who had appeared 7 kilometers away in front of Hyuga Natsu, as well as Hyuga Genko standing beside Hyuga Natsu.

He didn't raise his bow to shoot, nor did he rashly approach.

Ao was able to suddenly appear before Hyuga Natsu, who possessed the Byakugan, because she had used the same method as Kidomaru, approaching by circling around the Hyuga Clan's Branch Family Byakugan's one-degree blind spot to obscure their vision.

Information about this one-degree blind spot wasn't hard to come by; one only needed to understand the Hyuga Clan's information to know that the blind spot for most Hyuga Clan Branch Family members was directly behind their heads.

And the root cause of this scene was:

As the Main Family member, Hyuga Genko, had never used his own 360-degree blind spot-free Byakugan from beginning to end. Even after being ambushed by the Seven Ninja Swordsmen of the Mist, the Chakra within his meridians was still at its maximum.

That was a massive amount of Chakra, even larger than that of a typical Jonin. (Approximately 7,1.5 units of refined Chakra)

This scene once again proved that Hyuga Genko was not a qualified ninja.

He would rather risk having his vision obscured than to expend the Chakra of a Branch Family member, instead of personally controlling the information vital to his own life.

Throughout the entire incident, he only cared about his own life, but the more he cared about his own life, the more his decisions pushed him closer to the edge of a cliff.

But fortunately, Seeing Hyuga Genko act this way completely lifted the burden from Hyuga Yu's heart.

At this moment, Hyuga Yu stood in place, hung his bow on a nearby tree branch, bit his finger, and placed it on the "Medical" scroll he had drawn.

"Bang!"

As smoke erupted and dispersed.

A thick notebook, filled with countless bookmarks, appeared on the "Medical" scroll.

This was a massive notebook that a Genin of Hyuga Yu's level shouldn't possess, and it was the true result of Hyuga Yu's seven years of part-time study at Konoha Hospital since enrolling at the age of six.

It listed nearly fifty medical Ninjutsu, large and small.

D-rank Chakra Heal, Dead Fish Reanimation Technique...

C-rank Epidermal Suturing, Bone Setting Technique, Tracheotomy...

B-rank Delicate Illness Extraction Technique, Meridian Reconstruction Technique, Tendon Suturing Technique, Organ Replacement Technique...

A-rank Chaotic Body Charge, Chakra Scalpel.

It could be said that half of Konoha's medical Ninjutsu was basically contained within this notebook.

The notebook provided extremely detailed records of D, C, and B-rank medical Ninjutsu. Not only did it include Hyuga Yu's detailed summary of the principles, activation methods, application possibilities, and healing effects, but it was also supplemented with images like CT scans and tree diagrams for further proof.

These were all the results of Hyuga Yu secretly learning through the Byakugan!

That's right, The Byakugan could also copy Ninjutsu.

Compared to the Sharingan, the Byakugan offered clearer perspectives of Chakra, meridians, and even the human body. In theory, secretly learning with the Byakugan was feasible.

The key factor limiting the Byakugan's ability to copy Ninjutsu was the lack of the Sharingan's dynamic vision and bullet-time abilities.

A ninja typically takes several seconds to release Ninjutsu, including hand seals. Within such a short timeframe, the Byakugan simply couldn't track and detect the specific flow of Chakra.

However, there was one exception—

Medical Ninjutsu.

Medical Ninjutsu prioritized the precision of the release outcome over the speed of Ninjutsu release. Furthermore, medical Ninjutsu typically lasted for five minutes to tens of minutes, with high-level techniques like A-rank Reanimation requiring multiple high-ranking medical ninja to work in shifts, making surgeries lasting several hours quite common.

Under these circumstances, Hyuga Yu, who possessed excellent Chakra control as a member of the Hyuga Clan and had dedicated seven years to the field of medical Ninjutsu, could already be considered a semi-expert.

But, Hyuga Yu only understood the principles of most medical Ninjutsu in this notebook; he couldn't use them.

The limiting factor was still the amount of Chakra.

Medical Ninjutsu also required a large amount of Chakra. Most medical Ninjutsu demanded a minimum refined Chakra level of 4, otherwise, it wouldn't be enough to sustain the expenditure of a full surgery.

Returning to the main topic, This thick notebook recorded two A-rank medical Ninjutsu that Hyuga Yu had specifically learned:

[Chaotic Body Charge], and, [Chakra Scalpel].

Hyuga Yu flipped the notebook to the page detailing the activation method for [Chakra Scalpel].

This was one of the three A-rank medical Ninjutsu that high-ranking medical personnel had to master. It allowed Chakra to be concentrated in the hand and used as a blade, capable of cutting within the target's body without external wounds and could be extended arbitrarily. Similarly, this medical Ninjutsu could be used as a weapon, but the prerequisite was a certain level of medical knowledge.

The condition for using it was having at least a refined Chakra level of 4. To skillfully use it in combat to achieve effects like Kabuto Yakushi's required at least a refined Chakra level of 6.

Hyuga Yu only had a refined Chakra level of 2, and most of this Chakra had already been depleted in the recent battle.

But fortunately, the giant insect given by Aburame Ryūma temporarily provided Hyuga Yu with another source of Chakra!

This would allow Hyuga Yu to complete some of the concepts that only existed in his mind ahead of schedule.

At this moment, Hyuga Yu drew a large amount of Chakra from the parasitic giant worm in his abdomen. Following the steps recorded in the notebook, he released Chakra from several acupoints on his hand, channeling it along the meridians to his palm.

Then, a pale blue, crystal-clear thin blade appeared in his hand.

Chakra Scalpel, successful on the first try!

But this was only the beginning!

Controlling the Chakra Scalpel, which couldn't be used in actual combat, wouldn't allow Hyuga Yu to rapidly increase his strength. This Ninjutsu was merely a prerequisite for the system Hyuga Yu was building.

At this time, a fierce look flashed in Hyuga Yu's eyes.

He decisively raised the hand wrapped in the pale blue blade and thrust it towards his own forehead!

The human body contains eight acupoints, corresponding to the eight nodes that restrict Chakra in the body, the Eight Gates.

These eight gates are:

Opening, Stasis, Life, Injury, Limit, Vision, Shock, and Death.

Taijutsu masters who strengthen their bodies' adaptability through super-overload training can open these acupoints one by one to gain power beyond human limits. Those who fully open the Eight Gates can even gain power tens of times greater than that of a Kage.

Unfortunately, Hyuga Yu was not the type of genius who relied on hard work that Might Guy would later speak of. His Taijutsu talent was so poor that even the eternal Genin Might Duy would shake his head. Therefore, even after studying with Might Duy for six years, and with Might Duy generously teaching him the first three Gates of the Eight Gates, Hyuga Yu still couldn't open a single one.

But, every Jutsu has a flaw.

Every Jutsu can be overcome!

Hyuga Yu's expression contorted slightly as he widened his blood-veined Byakugan and swung his palm!

The first strike of the Chakra Scalpel, Hyuga Yu aimed at the [Gate of Opening], located at the core of his brain!

By severing the Chakra meridians in his brain that hindered Hyuga Yu from opening the Gate of Opening, and using Byakugan and Chakra to perform the B-rank Medical Ninjutsu [Meridian Reconstruction Technique] in his brain, he would use it as a temporary pathway to connect to the Gate of Opening.

"The first gate of the Eight Gates, the Gate of Opening, open!"