Uchiha's personal opinion

"Understood! I will certainly urge everyone in the research institute to do their utmost! I will never fail Lord Deguang's trust."

The director of the vortex research team nodded vigorously.

"However, in this case, it can no longer be called a research institute..."

Uchiha Tokumitsu pondered for a moment.

The director of the vortex research team's heart jumped into his throat.

"Upgraded to the Shogunate Engineering Institute, it is on the same level as the Konoha Research Institute, and the functions of both sides are more clearly defined."

Uchiha Tokumitsu's words immediately filled the Uzumaki Research Director with ecstasy.

As expected! We are Lord Deguang's most trusted and loyal followers!

The group of vortex researchers thanked them repeatedly, then bowed and left.

"Mr. Orochimaru, what do you want?"

After the Uzumaki researchers left happily, Uchiha Tokumitsu said seriously, "Based on your research results... basically anything that the Uchiha clan can do, we can satisfy you!"

"Add more money!"

Orochimaru said just as seriously, "In addition, the equipment also needs to be updated."

"That's all you're asking?"

Uchiha Tokumitsu was both surprised and very satisfied!

Although Orochimaru did not specify how much money he wanted, for the Uchiha clan, anything that can be solved with money is not a problem!

Moreover, in Uchiha Tokumitsu's view, these two reports were practically opening the door to the evolution of bloodline powers!

This is something that cannot be measured in money!

"Perhaps due to my physical constitution, I am unable to fuse and synthesize a new bloodline limit within my own body..."

Orochimaru sighed, and said with some doubt, "Therefore, I hope to conduct research on the art of immortality, so that I can obtain enough life to explore the mysteries of chakra..."

"And all of this requires money to support it."

Orochimaru's seriousness seemed genuine: "Therefore, I very much hope to receive your support!"

"You write the note, I'll approve the payment!"

Uchiha Tokumitsu readily agreed.

After Orochimaru left satisfied, Uchiha Tokumitsu picked up the research report again and continued studying it.

"This is the power of a god..."

Uchiha Tokumitsu stretched out his hand and condensed a ball of fire-style energy in his palm.

Then, the purple flames transformed into a golden light that danced in his palm.

This incorporates Sage Chakra as well.

However, this is not considered a bloodline elimination, because the combination properties of chakra have not changed, but have become more solidified.

"If it were to fuse with the power of a tailed beast..."

Uchiha Tokumitsu connected this to the melting power inherent in Fire Release.

Because he was worried that excessive fusing of the tailed beasts' power would cause an imbalance in chakra attributes, Uchiha Tokumitsu only fused the chakra of the Two-Tails and the Three-Tails. The chakra of the more powerful Six-Tails, Seven-Tails, and Nine-Tails had not yet been fused.

However, based on Orochimaru's research on bloodline limits, Uchiha Tokugawa had a similar idea and conceived of creating a "mini Ten-Tails"—if the chakra of the nine tailed beasts were all fused into his own, wouldn't the attribute characteristics he could obtain be even greater than those of the Bloodline Elimination?

Moreover, due to the existence of the Five Elements Seal, Uchiha Tokumitsu's scattered physical and spiritual energy was collected by the sealing technique and formed into a chakra cycle within his body. It interacted with the "divine particles" within his body, thus replenishing his physical strength at an extremely slow rate.

Although Uchiha Tokumitsu has always been accustomed to using Fire Release ninjutsu to fight his enemies, he actually possesses all seven elemental attributes.

Even so, in his previous self-training, Uchiha Tokumitsu couldn't even successfully synthesize the Bloodline Elimination, let alone the highest level of Bloodline Gathering.

Thinking of this, Uchiha Tokumitsu couldn't wait to summon the Two-Tails Matatabi in his office.

"Stop eating! Come and cultivate with me!"

With half a beaver still in its mouth, the two-tailed Matatabi, who had been summoned in a daze, was filled with confusion.

What are you saying?!

When did tailed beasts become capable of self-training?!

Chapter 423 The Law of Conservation of Chakra Mass

Even though the Two-Tails was unwilling, it was still dragged by the neck to the training chamber by Uchiha Tokumitsu.

Then, the Uzumaki ninjas brought over a lead box that was tightly wrapped.

The device inside contains the Nine-Tails' chakra, which Kushina Uzumaki had just extracted from and sealed within her own Tailed Beast Seal.

A while later, the attendant ninjas rushed over again, offering the tailed beast chakra extracted from the Seven-Tails, Chomei.

As for the other two tailed beasts that were originally under the control of the Shogunate and belonged to Kirigakure, one is the Three-Tails Jinchuriki, Yagura Karatachi, who has returned to Kirigakure to continue being a mascot, and the other is the Six-Tails, which has been taken back to the Uzumaki Research Institute in Fubuki Castle to serve as a "researcher", so they cannot be found for the time being.

Uchiha Tokumitsu wasn't in a hurry to increase the chakra of the two tailed beasts, so after sending his subordinates away, he began to affectionately stroke the large cat head of the Two-Tails, Matatabi.

"...What are you doing?"

This was the first time the big cat, Matatabi, had seen Uchiha Tokumitsu with such a kind and benevolent expression. Even though it was a chakra-based creature, it couldn't help but feel a little uneasy.

"I think there might be some distance between us that we need to work on and reconcile..."

Uchiha Tokumitsu's tone was very gentle.

"...You should say that to Makoto, the one who's slender yet bears such a heavy fruit!"

Matatabi of the Two-Tailed Beast grimaced in obvious discomfort.

"Where did you learn these words?!"

Uchiha Tokumitsu snorted coldly, his kind and gentle expression instantly vanishing, replaced by a fierce look: "From now on, don't learn so much useless stuff from those ninja cat thugs! Stay by my side and obey my orders!"

"...That's more like it."

Two-Tails muttered something, then obediently lay down and let Uchiha Tokumitsu pet it in various ways.

After the streams of Fire Release chakra merged with Matatabi's tailed beast power and returned to his body, Uchiha Tokumitsu immediately increased the intensity of the Five Elements sealing aura on his body, using more chakra to nourish his body.

From a health perspective, there are reasons why ninjas had short lifespans.

Firstly, the formation of chakra itself requires the extraction and refining of physical and mental energy, which is inherently a form of overdraft for the human body. Even though some long-established ninja clans possess secret medicines for nourishing the body, the human body has a certain threshold for absorbing nutrients, so ninjas are generally in a state of "insufficient intake and insufficient expenditure," and their physical activity is only supported by the existence of chakra.

Secondly, there are the medical ninjutsu commonly used in the ninja world. Apart from a very few advanced medical ninjutsu, most medical ninjutsu are methods that use chakra to stimulate cell division to achieve physical healing. In essence, this accelerates the aging process of the human body, which is a kind of "life-threatening" behavior.

This is also the fundamental reason why most ninjas experience a rapid decline in strength or even sudden death as they age—their chakra can no longer support their extremely burdened bodies!

However, Uchiha Tokumitsu had a new idea based on Orochimaru's "law of conservation of chakra".

Since Orochimaru's research has shown that chakra is conserved, theoretically, the law of conservation of mass from his previous life should also apply to the ninja world!

Therefore, Uchiha Tokumitsu came up with a technique to replenish himself by fusing the chakra of the tailed beasts—the bloodline of the Uchiha clan comes from the Otsutsuki clan outside the heavens, and the tailed beasts are derived from the Ten-Tails of the Otsutsuki clan. So, in a sense, they all come from the same source!

As it turns out, after being refined by Fire Release chakra, Uchiha Tokumitsu was able to acquire certain characteristics of the Tailed Beast's power. Furthermore, if the amount of chakra he retracted each time was greater than the amount he released, then Uchiha Tokumitsu's chakra would be in a state of continuous growth.

The "cat hair" that Uchiha Tokumitsu plucked from Matatabi, the Two-Tails, was nothing more than a drop in the ocean for a fully-formed tailed beast!

Subsequently, Uchiha Tokumitsu slightly relaxed the sealing power of the Five Elements and began to concentrate on absorbing natural energy from the outside world.

This is also a method devised based on the law of conservation of mass.

Essentially, a ninja's chakra is an act of "exchanging life for power." Unless one is exceptionally gifted like Hashirama Senju, no matter how much a ninja eats or how many secret medicines they take, they cannot make up for the body's deficit. This is because the stronger a ninja is, the more powerful the enemy they need to face, so their chakra consumption is far higher than that of ordinary ninjas.

However, the existence of natural energy, especially Sage Chakra, is an excellent external "nourishment"!

The natural energy in the ninja world is ubiquitous and extremely vast. However, there is a certain difference in the concentration of natural energy between the sacred land and ordinary areas of the ninja world. But for Uchiha Tokumitsu, this has little impact. On the contrary, the relative scarcity of natural energy is a good thing for a ninja like him with extremely strong chakra control. He can more stably absorb the natural energy in the void and melt it into Sage Chakra!

The third step is to replace the five elemental chakras within the Five Elements Seal.

Although the Five Elements Sealing Techniques have a certain strengthening effect on the body, the strengthening speed is slow, so Uchiha Tokumitsu has never been satisfied. After all, even when he gets old, this strengthening speed is not enough to generate enough Yang Release power to drive the evolution of the Sharingan.

Therefore, as Sage Chakra is refined, the five elemental chakras within the Five Elements Seal are gradually extracted and fused with Sage Chakra—just like using Sage Chakra to output Five Elements Ninjutsu techniques.

"That's really strange..."

The docile Matatabi, sitting to the side, found the scene before him incredibly novel.

This was the first time it had ever seen a ninja exchange their chakra for Sage Chakra.

Historically, due to the low concentration of natural energy in the ninja world, ninjas have had a relatively low level of understanding of natural energy. Apart from a very few ninjas who have reached the threshold of Sage Mode and can directly utilize it, most Jonin can only sense the existence of natural energy but cannot use it.

"The way of Heaven is to take from those who have too much and give to those who have too little!"

As the chakra within the Five Elements Seal was released and mixed with natural energy, Uchiha Tokumitsu let out a low shout, transforming the Sage Chakra he had been holding back into the Five Elements and re-injecting it into the seal!

Since the body's deficit after chakra extraction cannot be fully compensated by natural intake, an external source of replenishment is needed—and ubiquitous natural energy is the perfect "charging station"!

"That works too!"

Matatabi's cat eyes were wide open!

It had fought alongside Uchiha Tokumitsu many times, but even in all these long years, this was the first time it had ever seen someone handle Sage Chakra in this way!

"You are crazy!"

The Two-Tails Matatabi was immediately shocked and looked at Uchiha Tokumitsu, whose body began to emit five-colored light, at a loss.

With its tiny brain, even if it wanted to help, it wouldn't know where to start!

Uchiha Tokumitsu never expected that the Sage Chakra would cause such intense chaos and even go berserk after being sealed.

Fortunately, some preparations had been made beforehand...

Uchiha Tokumitsu reached out and snatched the sealing scroll containing the Seven-Tails' chakra, roughly breaking the seal. Before the tailed beast chakra contained within could even erupt, it was enveloped by Sage Mode chakra and absorbed into his own body.

Subsequently, the form of compound eyes faintly appeared in Uchiha Tokumitsu's eyes.

"...Tailed Beast Chakra Erosion!"

Nio Matatabi was in a panic but had no idea what to do.

Immediately, the strange expression in Uchiha Tokumitsu's eyes completely disappeared, and the five-colored light emanating from his body dimmed slightly, no longer appearing as chaotic as before.

"Don't worry, big kitty~"

Uchiha Tokumitsu casually released a burst of fire-style chakra with sage-like characteristics to soothe the agitated Two-Tails Matatabi. He then retrieved the lead box that sealed the Nine-Tails' chakra, broke the seal on the box with a grab, and then a surge of five-element sage-style chakra poured into the box, attempting to refine the Nine-Tails' chakra.