After training for an hour, Goku paused and then released the Shadow Clone Technique.
The five hundred shadow clones vanished instantly, and the corresponding training memories flooded into his mind.
According to Naruto's experience, when using shadow clones for training, it's best to dispel them once an hour and then create new ones.
This is partly to prevent accumulating too much fatigue and overwhelm the body.
It's also to consolidate the experience gained from the shadow clones, avoid repeating mistakes, and thus conduct research more efficiently.
"I've completely mastered the Eight Gates. Now let's test its effectiveness."
Over the past three days, he used half of his shadow clones to study gravity magic, while the other half was entirely dedicated to studying the Eight Gates technique.
Moreover, thanks to Guy's unreserved instruction and his own perfectly suited physical requirements for using the Eight Gates, his progress in the Eight Gates was extremely rapid.
He has now completely mastered this ninjutsu.
In fact, if it were an ordinary ninjutsu, he could learn it instantly simply by observing the opponent's chakra flow.
However, many powerful secret ninjutsu involve more than just chakra flow; they also have many unique aspects and corresponding techniques.
For example, the Eight Gates requires striking eight pressure points, demanding a thorough understanding of these points.
Medical ninjutsu, for instance, involves more than just releasing the technique; it requires mastering various medical skills to work in conjunction with it.
Various sealing techniques also require learning the relevant sealing techniques to complete the seal.
These types of ninjutsu require time for research and study to master.
However, with the help of Shadow Clone Jutsu and the willingness of ninjas who know the corresponding techniques to share their experience with him because of his help to Konoha, he can master them in just a few days, not years.
Of course, there are also some ninjutsu that he simply cannot master no matter how much time he spends researching or how much guidance he receives.
These are ninjutsu like the Sharingan and Byakugan, which require special bloodlines to use.
The Five Elements Release Techniques and Yin-Yang Techniques are related ninjutsu because ki itself possesses both Five Elements and Yin-Yang attributes—a very comprehensive power.
Therefore, Goku can release all related ninjutsu.
Moreover, because he releases it with ki, its power is far greater than that of a ninja released with chakra.
Like Naruto's Rasengan, he can learn it with a single glance.
However, Naruto compresses and flows chakra in different directions, forming a high-density "chakra ball," giving it immense destructive power.
Goku, on the other hand, compresses and flows ki in different directions, forming a high-density "balloon."
Its destructive power far exceeds Naruto's normal Rasengan, but it's still not as strong as a ki blast.
But it's not entirely useless; in close combat, suddenly using this technique can greatly disrupt the enemy's attack rhythm, causing them to expose weaknesses.
In reality, almost all of Konoha's ninjutsu—99% of them—only play a supporting role in enhancing his strength.
Like the magic he learned, their destructive power is far inferior to ki; they are simply much more functional.
Only a very few ninjutsu that enhance his physical body can truly boost his power.
In terms of magic, there's Giant Magic, which allows him to transform into a giant, greatly enhancing his physical body.
As for ninjutsu, he has currently discovered two.
One is Guy's Eight Gates, which opens pressure points, removing physical limitations and unleashing all latent power, significantly increasing his strength.
The other is Tsunade's self-created S-rank medical sealing technique, the Yin Sealing Technique.
This technique can enhance bodily functions, keeping them at their peak, and also has the effect of eternal youth.
It can also store a large amount of chakra in the seal beforehand, releasing it when needed.
When used in conjunction with Earth Ninja Art: Creation Rebirth: Hundred Healings Technique, it can continuously repair bodily injuries by consuming chakra.
As long as one isn't instantly killed, and as long as chakra isn't completely depleted, even the most severe injuries can be healed, making it practically an immortal technique.
If this ninjutsu were combined with the Eight Gates Technique, the effect would be excellent, even saving on Senzu Beans.
As for why Guy doesn't practice the Yin Seal, and Tsunade doesn't practice the Eight Gates Technique?
Goku also asked them both.
The answer is simple.
The Yin Seal requires extremely precise control over chakra, requiring a significant amount of time to learn medical ninjutsu before it can be mastered.
A ninja like Guy, who only focuses on physical training, simply doesn't have the talent or time to learn that.
Similarly, the Eight Gates Technique requires a body honed through countless trials to have a chance of opening the remaining pressure points.
Tsunade had neither the time nor the interest to engage in physical training. Her monstrous strength wasn't based on sheer physical power, but rather on special chakra control techniques.
The principle behind this was derived from medical ninjutsu.
In reality, aside from Rock Lee, no one in Konoha could withstand the intensity of physical training that Guy underwent.
Furthermore, for Tsunade, unless she could use the last two gates, the increase in strength wouldn't be very noticeable.
However, Goku had no problem with either of these aspects.
His physique was many times stronger than Guy's; once he learned the technique of opening the chakra points, he would completely master the Eight Gates in three days.
As for the Yin Seal, which is medical ninjutsu combined with sealing techniques, that might take a little longer.
But it wasn't a major problem.
The most important aspect of medical ninjutsu is precise control of chakra. Goku's ki control, after training with Kami, was completely flawless.
As for the relevant medical knowledge and sealing techniques, he had Shadow Clones to cheat with, didn't he?
Five hundred Shadow Clones, learning for one day was equivalent to someone else's year; spending a month should be enough to master it.
The only drawback of the Yin Seal is that repairing a severely injured body consumes a certain amount of lifespan.
That's not a problem either.
Once Bai Yuekui completes the research on the upgraded version of the oral Angel and Miracle Potion, he will have inexhaustible lifespan and won't have to worry about its consumption anymore.
"Eight Gates - Gate of Shock Opens!"
With a loud shout, Goku manipulated his ki to open seven acupoints in his body, directly opening the seventh gate.
According to Guy's experience, opening the eighth gate would inevitably lead to death, unless Goku's Senzu Beans could save him.
Now it's just an experiment; Goku felt it wasn't necessary to waste Senzu Beans, so he'd open the seventh gate first to see the effect.
"This feeling is similar to using breathing techniques."
After opening the seventh gate of the Eight Inner Gates, feeling the hidden power released from the cells within his body, feeling his ki increased tenfold, Goku's face showed a thoughtful expression.
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