Tobirama Senju was actually holding on all along; his injuries were severe, and he was relying on the last bit of Chakra to persevere.
Normally, with his remaining Chakra, he could handle the current situation, but he encountered an abnormal situation.
Dizzy, he subconsciously looked down at the wound on his abdomen, wondering if he had misjudged the severity of the injury earlier.
"Too much blood loss... no, it's not, it's... my Chakra..."
Of course, his weakness was related to blood loss, but the main problem was that he shouldn't have made close contact with Yu Zhen.
It was precisely because he was subjected to Tobirama Senju's "control" that the two sides could make close contact, and Yu Zhen found the opportunity to extract his Chakra.
Continuous combat, constant pursuit, and injuries causing blood loss had left Tobirama Senju in extremely poor condition, and his senses had become slightly dull.
This was a fatal mistake. The lack of remaining Chakra prevented him from reacting in time, and after losing his last bit of Chakra, it was difficult for him to maintain his condition.
He had been holding on, but now he simply couldn't hold on any longer.
With a clang, the long sword he was holding fell to the ground.
Yu Zhen easily broke free from Tobirama Senju's control. He slowly straightened up, then turned around and pressed down on the tottering "Second Hokage" with his backhand.
"You were too careless. Luckily, I'm a good person, so I won't hurt you, but I know you have a strong personality and like to think about things in a dark way, so... you don't have to die, but you owe me a life."
Before he could finish speaking, Tobirama Senju had already started rolling his eyes.
So he released his hand from Tobirama Senju's shoulder, and the other party slowly collapsed to the ground, already as unconscious as could be.
See, theoretically, this was when Tobirama Senju was most able to understand human speech.
"Get two people to carry him aside and treat his wounds," Yu Zhen said.
Two ninjas walked over, carefully lifted Tobirama Senju into a nearby shed, following the principle of gentle handling, and placed him on a simple wooden plank bed...
They clearly regarded him as some kind of precious, fragile item.
Well, for them, the Senju were indeed rare.
Then, the two cooperated to remove Tobirama Senju's armor and clothes, and began to examine his wounds, performing meticulous cleaning and bandaging.
Frankly speaking, since there were no professional medical ninjas, the camp provided limited help to the wounded. However, if the injured person was Tobirama Senju, then simple hemostasis was enough. At this time, one could fully trust the Senju Clan's vitality and recovery power.
"This is a member of the Senju Clan, is it real? It's my first time seeing a living one."
"Wow, so white..."
"Yeah, white."
"Huh, little acorn."
Huh? Isn't your conversation a bit strange? Yu Zhen couldn't bear to listen and moved as far away as possible.
Hayasaka Ryunosuke walked up to his side and said, "Captain, I didn't expect your technique to really work on Senju ninjas."
Yu Zhen didn't feel complacent. He told the truth, "It was just taking advantage of his carelessness, plus the other party was in extremely poor condition... This kind of trick can only work the first time it's used."
Over these days, the changes in Yu Zhen had been obvious, and everyone could sense this, but since this involved personal strength, the others couldn't bring themselves to ask.
In any case, Yu Zhen's increased strength is a good thing for everyone.
Ryunosuke nodded and asked, "But Captain, is he really a ninja from the Senju clan?"
Yu Zhen thought for a moment and decided to tell the truth, "Definitely, and... if I remember correctly, this ninja's name is Tobirama Senju, the second son of the current Senju Clan Head."
"Senju... the Clan Head's son?" Hayakawa Ryu's expression immediately changed. "Captain, how do you know him?"
Yu Zhen shouldn't have any contact with the Senju clan.
Faced with such a question, he simply shook his head and didn't answer.
Questions from below cannot demand detailed explanations from above. Some things, whether Yu Zhen explains them or not, depend entirely on his own will.
Seeing that he didn't answer, Ryunosuke didn't have any intention of getting to the bottom of it.
"Captain, is there any way we can use this Clan Head's son to further seek the possibility of getting closer to the Senju clan?" Ryunosuke immediately began to consider some possibilities.
It must be said that his brain is still very flexible. Upon hearing Tobirama Senju's identity, he immediately expanded his thinking to the aspect of 'hugging a big tree'.
"Don't think things are too simple. Tobirama Senju at this age can't decide anything for the Senju clan." Yu Zhen continued to shake his head. The wool of a large ninja clan is not so easy to shear.
Seeing the other party looking like he wanted to say something but hesitated, Yu Zhen asked, "What are you thinking?"
"Let me think... um, how about a marriage alliance?" Ryunosuke cautiously suggested.
"..."
Yu Zhen was actually prepared to hear bad ideas, but he didn't expect the other party's idea to be so bad.
"Ryunosuke, the only woman in our camp is Grandma Takamatsu."
Big Sister Takamatsu is already in her forties. Women in their forties certainly have the right to pursue love, but having the right to pursue love does not mean having the right to commit crimes.
Tobirama Senju is just fourteen years old, and the two seem a little mismatched.
Ryunosuke's gaze couldn't help but turn to Big Sister Takamatsu, who was searching for bandages in the camp, and couldn't help but start thinking about whether the Senju family's kid had a mother complex.
Yu Zhen stopped paying attention to his subordinate who was pretending to be profound. He turned around and shouted to everyone:
"Does anyone want to experience the Senju clan's Chakra?"
The next day, the rain fell from dawn and showed no sign of stopping.
The unconscious Tobirama Senju suddenly woke up. He sat up abruptly and subconsciously reached for his weapon.
Of course, he touched nothing. The violent movement pulled at his wound, and the severe pain from his ribs and abdomen made him gasp. Cold sweat flowed from his forehead.
The pattering sound of rain entered his ears, and a cool breeze blew, instantly clearing his head a lot.
Looking around, he found himself lying under a simple shed with wind blowing from all sides, covered only with a thin, worn blanket. Lifting the blanket, he saw that he was only wearing a pair of pants, and the injured area on his upper body had been bandaged.
His Forehead Protector, ninja tool bag, and clothes were neatly stacked on a wooden stake on the right, and his long sword was placed next to the tree stump.
Yesterday's memories surfaced in his mind, vaguely, and he understood what had happened to him.
Unfortunately, he fell into the hands of unfamiliar ninjas; fortunately, he didn't know that he was treated as a rare animal yesterday and everyone carefully observed him.
"Oh, you're awake."
Sensing the movement here, Yu Zhen immediately appeared, still carrying the large scroll from yesterday on his back.
This was, of course, no coincidence. In fact, he had been monitoring this place, so he was able to appear here the moment the other party woke up.
It can only be said that the current Tobirama Senju is still too young and naive. If it were a mature version of Tobirama Senju, he would definitely continue to feign unconsciousness upon waking up.
Or he would figure out his situation in a more secretive way, or pretend to be harmless and take the opportunity to attack the controller of the camp.
Although he will eventually evolve into an old geezer one day, the current Tobirama Senju is just a young one whose mind isn't that complicated.
Tobirama Senju's Chakra is naturally very strong. The high energy density brings a high-quality sense of abundance, exceeding the imagination of ordinary people like Yu Zhen.
The strongest enemy Yu Zhen had encountered before was the leader of the Tsugawa pursuit squad, who unfortunately suffered an assassination. The Jonin's Chakra left a deep impression on him, but...
Although the words are harsh, comparing people is infuriating, and comparing goods is discouraging.
To put it simply, if ordinary ninjas' Chakra is compared to ordinary beer, then the "high-quality" Chakra that Yu Zhen imagined would at least be at the level of Erguotou, but what about Tobirama Senju's Chakra? That's not even alcohol anymore, but solid alcohol.
My second brother is already so strong, I can't imagine how strong the eldest brother must be.
By the way, if we use such an unpopular evaluation system, Yu Zhen's Chakra is now equivalent to Erguotou, from 30 degrees to 70 degrees, from Erguotou to Erguotou, is his pursuit goal.
Tobirama Senju's Chakra is good, but one can't be greedy. Yu Zhen is just feeling what the Chakra of a future powerhouse is like, that's all.
Anyway, he can't really take other people's Chakra for his own. It's impossible. Tobirama Senju is not a White Zetsu. Since he can only borrow it, Yu Zhen naturally has no prejudice.
As for controlling Tobirama Senju all the time, that's overthinking it.
In fact, Yu Zhen has now realized a very important fact, that is, what he can use is not the complete version of the Spore Technique.
When White Zetsu uses the Spore Technique, it can silently implant spores into the target ninja's body in advance, remotely and timely control the timing of spore growth, that is, White Zetsu can deprive the target ninja of Chakra at the most appropriate time to achieve a fatal blow.
In the hands of White Zetsu, the Spore Technique can be said to be flexible and deadly.
But in Yu Zhen's hands? He can only use the Spore Technique when he is in direct contact with the target.
Strictly speaking, the Spore Technique is just a technique of Chakra absorption and distribution in his hands. What he can absorb is only pure Chakra, but he can't absorb ninjutsu or Dunjutsu, so he doesn't have defensive capabilities.
The reason for this defect is probably that Yu Zhen is not an original pure White Zetsu. The part of him that is human prevents the full fā huī of some White Zetsu abilities... Yu Zhen cannot split like White Zetsu, nor can he produce spores, so how can he use spores for remote parasitism and control?
It is precisely because of this that Yu Zhen is not only not frustrated because this ability has lost a considerable degree of power, but he has gained psychological comfort... This shows that he is different from White Zetsu, he is essentially human and not White Zetsu.
In any case, this is a good thing.
After waking up, Tobirama Senju maintained the basic vigilance of a ninja, but he no longer had the intention to fight, because when he had no power to resist, the person in front of him did not hurt him, but gave him timely treatment.
As for why he lost his ability to resist? Don't ask, don't inquire.
"Please allow me to reiterate, there is a misunderstanding between us. No matter who you are looking for, he is not in our camp."
Yu Zhen said, while sitting on a section of wooden stake next to him.
This time, Tobirama Senju did not refute or stubbornly stick to his own ideas, but just nodded lightly.
It's not that he believed Yu Zhen's words, but it's meaningless to argue about these things now. Even if the person he was chasing had been hiding in this camp, the other party must have taken advantage of him losing consciousness to escape.
"How long was I unconscious?" Tobirama Senju asked.
"About ten hours." Yu Zhen said, while placing the scroll behind him in front of Tobirama Senju, "With your blood loss yesterday, and still insisting on fighting strongly, it's normal to lose consciousness."
Tobirama Senju nodded again.
Of course, he knew that he didn't faint because of blood loss. He clearly fainted because he was deprived of Chakra, but he is a mature person and knows that some things don't need to be pointed out... If you don't mention it, I won't mention it, then the previous unpleasantness will be regarded as never happened, so as to avoid embarrassment for everyone.
Tobirama Senju didn't mention the matter of being extracted Chakra, and Yu Zhen wouldn't mention the matter of the other party breaking into the camp rudely and making unreasonable demands.
"My name is Yu Zhen, may I ask your name?"
"Tobirama Senju."
By exchanging names, the two could be considered acquainted.
"Well then, Tobirama, I'd like to ask you for a favor."
Yu Zhen seemed to be very familiar, as he unfurled the supplies scroll, revealing the sealing formula inside.
"I want to take out the supplies sealed inside the scroll, but I can't understand this specialized sealing formula."
Yu Zhen didn't think so much when he was carrying out the robbery. His course of action was nothing more than to grab and run, but after he brought the scroll back, he realized that he didn't know how to undo the seal on it.
Tobirama Senju only glanced at it and said, "The sealing formula on this kind of scroll isn't complicated. It probably only contains ordinary supplies. I know how to undo the seal, but... I need to know where this scroll came from. What relationship do you or your group have with the Sarutobi Clan?"
This was indeed just a sealing scroll for transporting general supplies, and the formula on it wasn't complicated for those in the know.
Tobirama Senju came from a "family tradition," a great ninja clan with a long history and heritage, and was very familiar with various sealing formulas. Moreover, the Senju Clan and the Sarutobi Clan were closely connected. Tobirama Senju had seen and even used the Sarutobi Clan's supplies scrolls before.
"We have nothing to do with the Sarutobi Clan. I picked up this scroll on the battlefield." To increase credibility, Yu Zhen added some more specific information, "The two sides fighting at the time were the Sarutobi Clan and the Ishikawa Clan..."
Tobirama Senju cast a suspicious glance. Picked it up? More like taking advantage of the chaos to snatch it.
An ordinary scroll wouldn't harm the core interests of the Sarutobi Clan. In addition, Tobirama Senju understood the survival zhī dào of most small ninja clans and wandering ninjas, so he decided to help with this small favor.
Just as Yu Zhen wouldn't hurt him when he had no ability to resist, Yu Zhen wouldn't kill the Sarutobi Clan's ninjas either. He knew that the attention of a large ninja clan could be fatal... Forget it, let's just assume that Yu Zhen picked up this scroll.
Tobirama Senju laboriously raised his hands, slowly formed hand seals, and then slapped the sealing formula on the scroll.
With a poof, the space seal was released, and a large amount of supplies appeared out of thin air in front of Yu Zhen.
He was very happy.
He inspected the supplies.
The smile on his face disappeared.
In just a few minutes, Yu Zhen's emotions underwent a classic three-stage change, because the supplies sealed in the scroll did not meet his expectations.
There was grain, but only three bags, at most 300 kilograms, which could be considered a temporary solution to the camp's urgent needs.
In addition, there were more than twenty ninja tool bags, a box of medicine, and...
More than fifty baskets of tea.
Imperceptibly, Yu Zhen's resentment towards the Sarutobi Clan began to grow rapidly.
So much tea, are they eating it as food?
Were they going to war? Or going to drink tea?
The smile didn't transfer to Tobirama Senju's face, but after seeing the change in Yu Zhen's emotions, his originally serious and stern expression loosened up a bit.
"These aren't necessarily all supplies from the Sarutobi Clan; they might have taken on a transportation mission for some merchant."
Tobirama Senju kindly reminded him. Look, he even has kindness now.
Clearly, tea is a commodity with considerable economic value, and it's basically impossible for it to be for the Sarutobi Clan's own use...
Even if all the Sarutobi clansmen had the habit of drinking tea, they would have to drink until the year of the monkey to get through such a large quantity.
Although it's different from the later era of the Ninja Village System, ninjas of this era also undertake missions from within or outside their ninja clans.
Ninjas often don't engage in production; they are purely armed forces. Exchanging martial power for survival resources is a common characteristic of them across all eras.
Of course, there are production and commercial activities in times of war; this doesn't need much explanation.
Yu Zhen nodded; he felt that Tobirama Senju's explanation made sense.
Then he had several ninjas carry away the useful supplies and asked Tobirama Senju to repack the tea into the Sealing Scroll.
These tea leaves were of no value to him, but if they accidentally got rained on, they would become worthless to everyone.
After completing the "packaging" of the tea leaves, Yu Zhen directly gave the supply scroll to Tobirama Senju: "It's yours. It's completely useless for us to keep this thing."
He didn't have any distribution channels, and it would be better to do someone a favor than to have the tea rot in his hands. He couldn't just not offer it as a gift and instead say he was reselling it to Tobirama Senju, right?
Yu Zhen did want to get something from the other party, but one had to be realistic and not want everything.
Tobirama Senju twitched the corner of his mouth; it was obvious that he didn't want it at all. The Senju Clan certainly had ways to exchange the tea for other, more urgently needed supplies, but these things were dirty goods from the Sarutobi Clan.
Now, as a guest, he could only remain silent and let Yu Zhen place the donated supplies next to his Long Sword.
"If the Sarutobi Clan loses mission items, do they need to compensate the client?" Yu Zhen put down the scroll, sat back in his original position, and then asked seemingly casually.
"If it's the Sarutobi Clan, they will compensate the client to some extent," Tobirama Senju said.
"Oh, as expected of a great ninja clan that stands tall. It seems the Sarutobi Clan values trustworthiness."
Tobirama Senju was stunned for a moment upon hearing this, and then he understood the hidden meaning in Yu Zhen's words.
He immediately remembered that before he fainted, Yu Zhen had said something like, "I won't hurt you, but you owe me a life."
After Tobirama Senju woke up, Yu Zhen certainly couldn't bring up this sentence again, or it would be considered coercion. Tobirama Senju wouldn't mention it either, but he couldn't pretend he didn't hear it, because what Yu Zhen said was the truth.
The Ninja World now was incredibly dark, and almost everyone was morally bankrupt. In this kind of era, not killing when one could kill could be called kindness and righteousness, and there was absolutely nothing wrong with this concept.
In the previous battle, Tobirama Senju was the initiator, and then he was defeated. Regardless of whether he was defeated because of some insidious sneak attack, defeat was defeat.
But Yu Zhen didn't take the opportunity to eliminate him, his enemy, but instead helped him treat his wounds. Whether it was because he had good intentions or because he feared the Senju Clan's reputation, since Yu Zhen didn't make a move, Tobirama Senju had to acknowledge this favor.
Of course, Tobirama Senju could deny all of this; anyway, Yu Zhen couldn't make a move again, however...
Although the name Tobirama Senju was often associated with descriptions like "cunning" and "using any means to achieve his goals," there were some things that even he disdained to do.
"Is there anything you need help with?" he asked directly.
"There is such a thing. Perhaps because I'm naturally drawn to water, I've become proficient in Water Release Chakra transformation. Now there's a problem: I don't understand Water Release ninjutsu and am currently trying hard to find a way to learn Water Release, but I haven't been able to find it."
Yu Zhen wasn't polite with him and directly stated his request.
Since they couldn't be considered friends, they would proceed with a fair trade.
"I do know a few Water Release techniques; I can teach them to you."
Hearing that it was just this, Tobirama Senju couldn't help but breathe a sigh of relief. This kind of "repayment" was within his capabilities. Under normal circumstances, he certainly wouldn't leak his clan's ninjutsu, but now he was facing his "lifesaver."
"That's really too kind of you, but I'm rather slow, and I might not be able to learn it in a short time, so please write it down."
As he spoke, Yu Zhen had already stuffed a blank scroll and a pen into Tobirama Senju's hands.
This, this was clearly premeditated. Tobirama Senju was somewhat helpless, but in the end, he picked up the pen and wrote on the scroll.
After a little thought, he first wrote down the hand seals, Chakra circulation method, and training method for a C-rank offensive Water Release ninjutsu, "Water Surge Wave."
With the idea of integrating offense and defense, buying one and getting one free, he wrote down the B-rank defensive Water Release ninjutsu "Water Formation Wall," which only Jonin-level ninjas could master, after Water Surge Wave.
He gave the defensive ninjutsu a higher rank because, in the eyes of ninjas, offensive ninjutsu were more valuable than defensive ninjutsu. This was because most of the time, ninja battles were about who could kill the other faster; ninjas emphasized extreme offense.
After writing these two ninjutsu, Tobirama Senju prepared to stop writing and return the scroll, but at this moment, he heard Yu Zhen's light words in his ear again.
"Speaking of which, I always felt like I'd heard the name Tobirama Senju somewhere. I finally remembered just now... Don't you have an older brother named Hashirama Senju?"
Tobirama Senju's pen paused, and he couldn't help but look up at Yu Zhen.
The latter's eyes were clear and focused.
Was he really just remembering now? He knew from the beginning, didn't he... Tobirama Senju realized that he had been tricked.
Hinting, Yu Zhen was hinting again. Conversations required skill; maybe he could write a book in the future called The Art of Communication.
In short, Yu Zhen wasn't saying that he had heard of Hashirama Senju's name, but that he knew Tobirama Senju's identity was actually the son of the Senju Clan Head.
At this moment, Tobirama Senju's life had increased in value. The price to pay for saving an ordinary Senju ninja and saving the Senju Clan Head's son was obviously different.
Because of his special identity, Tobirama Senju had to pay more, or else Yu Zhen's kindness would never be repaid.
So Tobirama Senju gritted his teeth, and his pen continued to write another high-level offensive Water Release ninjutsu that was difficult for Jonin to learn on the scroll... B-rank Water Release, Water Dragon Bullet.
After writing it, he returned the scroll and pen to Yu Zhen, finally unable to resist complaining, "You have too many thoughts."
Yu Zhen took the scroll and smiled without saying a word.
Yu Zhen would just lightly brush away such accusations against someone who would spend all day thinking about conspiracies in the future, not taking them to heart at all.
"You can stay here to recover until you regain your mobility," he said.
The matter wasn't over; there were definitely more opportunities to scrape some skin off of Tobirama Senju.
They had finally gotten together; would everyone leave immediately after one transaction was over?
Of course not, everyone would just start the next transaction.
Yu Zhen possessed simple, direct, and efficient assassination skills, but that didn't mean he would give up on more diverse attack methods.
After all, for a ninja, the more techniques they had, the more unexpected they could be in battle, and the easier it would be to defeat the enemy and achieve victory.
Therefore, Yu Zhen worked hard to learn Water Release ninjutsu. With such a good opportunity right in front of him, he naturally had to learn as much as possible from the young version of the Water Release master.
It was just a pity that this master was reluctant to part with his treasures, and a life was only exchanged for two B-rank ninjutsu and one C-rank ninjutsu.
But it didn't matter, there was no need to rush. Ultimately, he would have to rely on his own efforts to undermine the foundation.
After obtaining three Water Release ninjutsu and understanding the hand seals and Chakra operation principles, Yu Zhen immediately went to a place far away from the camp and began to practice on his own.
He quickly learned the C-rank Water Surge Wave, but the two B-rank Water Release ninjutsu had obvious learning difficulties. Yu Zhen's Water Dragon Bullet looked like nothing more than a large water gun.
After practicing all day without getting the hang of it, he immediately went to ask the injured and recuperating Water Release master for advice.
Frankly speaking, it was already very good of Tobirama Senju to give him three Water Release techniques; he had no obligation to teach Yu Zhen.
If Yu Zhen couldn't learn these ninjutsu, it was definitely his own problem and had nothing to do with Tobirama Senju.
Limited by their own conditions and understanding, many ordinary ninjas couldn't learn high-level ninjutsu above B-rank at all. If Yu Zhen was truly hopeless, it wouldn't be fair to blame Tobirama Senju.
But there was no helping it, who told Yu Zhen to keep wandering around and asking Tobirama Senju for advice?
Tobirama Senju could only endure his discomfort and point out the key points to Yu Zhen:
"For high-level Water Release ninjutsu like this, the pre-conversion of Water Release Chakra is necessary to achieve its power. After converting a sufficient amount of Water Release Chakra, it is best to pre-compress it before releasing it..."
"You need to have the feeling that the Chakra is not being released, but being ejected or erupted."
"Each step must be coordinated with your hand seal rhythm, guiding the flow of Chakra well."
"In short, you should start by practicing the amount and speed of Water Release Chakra output. Proficiency in this area can only be increased by spending time..."
The master was indeed a master. Under his guidance, Yu Zhen quickly grasped the essentials.
He wasn't a genius, and it was difficult for him to learn such high-level ninjutsu in a day or two. In fact, he didn't need to be so impatient. In short, after mastering the techniques and key points, Yu Zhen believed that he would definitely be able to master this high-level Water Release ninjutsu after practicing for a period of time.
However, he probably wouldn't be able to see Yu Zhen's training results before Tobirama Senju left.
Three days later, Tobirama Senju barely recovered his ability to move, which meant that he should leave this place... Under normal circumstances, that should be the case; he had nothing to miss here.
In addition, being away from the clan for too long would inevitably cause everyone to worry, and Tobirama Senju couldn't waste any more time outside.
Tobirama Senju subjectively thought so, but Yu Zhen objectively created conditions for him to continue staying.
Yu Zhen knew that Tobirama Senju was about to leave, so after approaching him again, he didn't discuss the Water Release problem anymore, but instead began to discuss the development of a new ninjutsu.
This was a good entry point.
What entry point, you ask?
If you want to fish, you have to bait the hook, right? Tobirama Senju's "life-saving grace" had already been repaid. If Yu Zhen wanted to get something more out of him, he would have to offer something of value this time.
And if you want to ask what the most valuable and presentable ninjutsu that Yu Zhen had mastered was, it was of course something that benefited others.
"Tobirama, I've seen your Body Flicker Technique. You could say that you have the ability to kill enemies in an instant, but when you use Body Flicker, you can only use taijutsu and general ninja tools to attack. Have you ever encountered a situation where your attack power is insufficient? You should know that Body Flicker attacks and slow hand seal casting are contradictory..."
Seemed like an academic discussion? This kind of conversation was more acceptable to Tobirama Senju than instructing him in Water Release, so he temporarily suppressed his intention to take his leave and said, "Indeed, sometimes I encounter situations where I cannot break through the enemy's defenses. Even the Body Flicker Technique is meaningless if it's fast enough."
Yu Zhen nodded, with an expression that said, As expected. "Then have you ever considered using an unsealed ninjutsu that can be cast instantly in conjunction with the Body Flicker Technique?"
"Unsealed ninjutsu? I have had ideas and experiments, but I have not achieved practical results. After all, it is through seals and techniques that abstract energy is transformed into concrete forms, so that the true power of Chakra can be exerted. Unsealed ninjutsu goes against this traditional understanding."
"Form... yes, form is indeed needed." Yu Zhen acknowledged this, but then immediately added, "But form does not necessarily require hand seals to achieve. In fact, the ultimate physical form transformation of Chakra can also bring unimaginable lethality."
As he spoke, Yu Zhen raised his left hand, and a rotating Chakra ball appeared in his palm. However, the energy density and spin speed of this Chakra ball were severely insufficient, making the technique appear powerless.
That's right, what Yu Zhen was talking about was the Rasengan.
The moment he arrived in this world and confirmed that he was in the Ninja World, Yu Zhen began developing this powerful and difficult ninjutsu. In other words, he had already spent a year on the Rasengan.
The Rasengan is one of the few ninjutsu in the original work that describes the cultivation process from beginning to end, so it is not surprising that Yu Zhen would focus on it.
However, the difficulty of practicing this ninjutsu is extremely exaggerated, so he has not made substantial progress.
This is not to say that his comprehension and learning ability are very poor, the only reason is that his talent is not very good... The quality and energy density of his Chakra simply cannot reach the threshold for learning the Rasengan, which is equivalent to a skilled woman cannot cook without rice.
"Seems to lack practicality..."
Tobirama Senju stared at Yu Zhen's left hand for a while, then shook his head with some disappointment, but it was clear that he was very interested in the development of this new ninjutsu.
As everyone knows, Tobirama Senju is the greatest, most imaginative, and most heretical inventor before Orochimaru. Discussing the development of new ninjutsu is definitely his point of excitement.
"To realize the power of this ninjutsu, three conditions are required: high-density Chakra, extreme energy compression, and super-speed spin. It is difficult for me to achieve these three conditions at the same time now," Yu Zhen said.
His Chakra was not up to par before, but now he can try again.
Naruto Uzumaki of the Konoha era, as the most famous hand-made Rasengan master in history, made unimaginable contributions to the development of the Rasengan ninjutsu.
It was because of Naruto's "stupid method" that the super A-level learning difficulty of the Rasengan was reduced to below B, because he creatively added Shadow Clones when using the Rasengan.
When using unsealed ninjutsu, you have to make hand seals first, it is difficult to say whether this is an evolution or a regression of the Rasengan, it can only be said that Naruto's thinking is very peculiar.
"What this technique pursues is of course instant casting with one hand, which is the most practical. However, in the process of breaking down the learning, it doesn't need to be so strict. Develop the technique first, and then consider the issues of actual combat and practicality."
As he spoke, Yu Zhen covered his left hand with his right hand, and then the loosely formed Chakra was compressed little by little towards the center of his hands, eventually converging into a small ball that appeared light blue.
It seems to really have a bit of the Rasengan's appearance? It's a pity that it's just a superficial resemblance, this Chakra ball is static.
"One hand maintains energy release, and the other hand maintains form transformation. Unfortunately, I don't have a third hand," Yu Zhen said with regret in his tone.
Tobirama Senju reacted quickly, he even learned to answer first: "A third hand? What about the Shadow Clone Technique?"
"I come from a small ninja clan that lacks inheritance, and I don't know the Solid Clone Technique."
"I..."
Tobirama Senju almost blurted out the words "I know," but before he could say it, he stopped himself.
Because he realized that he seemed to have been tricked again.
A ninjutsu like Rasengan undoubtedly holds immense value for Tobirama Senju at his current stage. Its value will only increase further once he completes the Flying Thunder God.
After all, Rasengan was originally developed to complement the Flying Thunder God's speed. Therefore, Tobirama Senju, known for his speed, would be interested in the half-finished product in Yu Zhen's hands.
So, when would Tobirama Senju consider Rasengan to be "devalued"? The answer is after he develops the Flying Thunder God Slash.
To continue developing Rasengan, Yu Zhen needs the assistance of Shadow Clones. So, where should he get Shadow Clones from?
Tobirama Senju struggled for a moment, but in the end, he said that he could bleed a little more. Anyway, he had already given away three ninjutsu, so adding a little extra wouldn't be a big deal.
"For Shadow Clones, I can teach you, Shadow... well, how about Water Clones?"
Fortunately, he hadn't reached the point where he didn't care about squandering his family's wealth. The B-rank Shadow Clone Technique was unnecessary; the C-rank Water Clone Technique was also very practical.
Yu Zhen didn't push his luck. He was content as long as he could get some benefits. So, he dispersed the Chakra in his hand and began practicing the Shadow Clone Technique.
The Shadow Clone Technique is very practical, or rather, it belongs to the most practical type of ninjutsu, because in the face of the enemy, many times 0.5 + 0.5 > 1.
It must be said that the feeling of dividing one's mind into two is wonderful.
Currently, Yu Zhen's theoretical strength can reach above Special Jonin, so it is easy for him to learn this C-rank ninjutsu. By the next day, he was already able to skillfully use the Water Clone Technique.
Tobirama Senju continued to recuperate and had no intention of leaving immediately.
After mastering the Water Clone Technique, Yu Zhen immediately began the Rasengan "synthesis" experiment.
Yu Zhen is a cautious person with a strong sense of safe operation. Therefore, he and Tobirama Senju came to a place far away from the camp to avoid any danger during practice.
"Here we go."
Yu Zhen glanced at Tobirama Senju beside him, and the words he spoke were both a sign of preparation for practice and a disclaimer... You're standing so close, don't blame me if something goes wrong later.
As he spoke, he used the Water Clone Technique, distributing a portion of his Chakra to the clone. Then, he released Chakra from his left hand and compressed it with his right hand suspended above his left palm.
After the Chakra ball had "solidified" to a certain extent, the clone's hands began to rotate the Chakra ball clockwise... Referring to Naruto, the copyright holder of this type of practice, Yu Zhen's movements were also extremely inelegant when he rotated the Chakra ball. The clone's two hands kept scratching left and right like cat paws.
As the clone's hand speed increased, the Chakra ball, or rather, the high-density Chakra that made up the ball, began to rotate. At first, the rotation speed was not fast, but with the efforts of the clone's hands, the center point of the Chakra ball quickly seemed to have a huge gravitational pull, guiding the outer Chakra to spin faster and faster.
Then, a short sound came, thick with a hint of lightness, like a gust of wind blowing through a section of hollow steel pipe.
The light, almost weightless Chakra, due to its ultra-high spin speed and contained impact force, made Yu Zhen's palm feel a certain weight.
"It's promising..."
The shape and power of the Rasengan seemed to be there, but before Yu Zhen could smile, the regular curved surface of the Chakra ball began to twist and tremble.
Seeing this, Yu Zhen subconsciously increased the force of restraint with his right hand, but this instead caused the Chakra ball to vibrate violently, and then...
With a bang like a balloon bursting, the Chakra ball in Yu Zhen's hand suddenly burst open. The huge impact directly turned his clone into a puddle of water, and he himself fell backward in a mess.
The surrounding flowers and plants suffered an undeserved disaster.
What about Tobirama Senju? Tobirama Senju had already silently retreated to a safe distance when the Chakra ball showed signs of being out of control... Just kidding, as a small expert in ninjutsu development, how many "experimental accidents" had Tobirama Senju experienced? How could he be affected by such a simple impact.
"The final stage wasn't mastered well," Yu Zhen said, getting up with a dusty face.
Because he had already seen hope, he was not discouraged by a failure, but immediately carried out the second practice, and the result was still the same, another failure.
After five consecutive failures, Yu Zhen made no progress.
At this moment, Tobirama Senju, who had been silently watching, said, "Ahem, how about I give it a try?"
"Of course," Yu Zhen decided to take a break and see if Tobirama Senju had any good ideas.
Tobirama Senju used the Shadow Clone Technique, creating two more of himself. He had already figured out the trick to this technique.
If the Rasengan is broken down into three parts, one part is the massive release of Chakra, and another part is the high-speed rotation of Chakra. These two parts can be said to be quite rough, so the technical difficulty actually lies in the final part of shape control.
Tobirama Senju's main body held his hands, releasing Chakra. One clone controlled the shape of the Chakra ball, and the other clone was responsible for the rotation.
After only three tries, he achieved the same level as Yu Zhen just now.
Although the idea was completely copied from Yu Zhen, Tobirama Senju's ninjutsu development ability was still amazing.
Another balloon burst, and Tobirama Senju immediately teleported away, while his clone was destroyed.
Yu Zhen looked at Tobirama with a somewhat resentful gaze, because those destroyed clones were Shadow Clones... B-rank is still better.
Tobirama Senju was not afraid of failure, of course. In fact, his eyes seemed to be getting brighter and brighter.
The sound of balloons bursting began to ring out one after another.
Immersed in ninjutsu development, Tobirama Senju was much more focused than Yu Zhen. On the first day, they made no progress. On the second day, they exchanged ideas. On the third day, Tobirama Senju began to not eat, drink, or pay attention to anyone.
On the morning of the fourth day, Yu Zhen, who was leaning against a large tree for a nap, heard that distinctive sound again, but he just turned over and ignored it.
Forming a high-speed rotating Chakra ball was no longer the difficult point; the difficulty lay in the final maintenance stage, so Yu Zhen was accustomed to this sound.
However...
That's not right, Yu Zhen didn't hear a bursting sound.
He suddenly opened his eyes, stood up, and looked in the direction of Tobirama Senju.
Tobirama Senju had not slept all night and looked somewhat scruffy, but his face was radiant because he and his two clones had finally maintained the shape of the Chakra ball. At this stage, it could already be called the Rasengan.
"You... you this... isn't your talent a bit too high?" Yu Zhen was surprised beyond measure.
He wasn't using himself as a reference, but rather Naruto, who was the fastest and laziest in terms of steps. Naruto took a month to learn the Rasengan, but Tobirama Senju, by his calculations, had only taken four days.
"Talent?" Tobirama Senju shook his head. "It's not talent. I'm using the most foolish method instead."
Foolish method?
Yu Zhen's eyes were filled with confusion. Was he sure he wasn't speaking ironically?