Uchiha Kagami had some knowledge of medical ninjutsu, but he wasn't very clear on the specifics of the research; after all, he was a high-ranking official in the Security Department, not in the medical field. Only Fumori Masaki, who needed to pay attention to the entire village, could be aware of the latest research in each department.
"Can you really regenerate an arm?" Uchiha Kagami asked, somewhat doubtfully. "This isn't just healing a common wound; it's regenerating an entire arm."
"It can be done, but it's incredibly troublesome. It requires a large group of people to focus on cellular reorganization. The human body is essentially made of cells, so theoretically, medical ninjutsu that can stimulate cell division and reorganization should be able to regenerate an arm. It's just that the power required is not something an ordinary person can bear," Fumori Masaki said.
One must understand that regenerating a large-scale missing limb like an arm is not something that can be easily recovered. Even for Hashirama Senju, it would require careful execution to potentially regenerate an arm. For ordinary people, the time and effort required would be even greater. Even if they could achieve the same feat as a god, they would have to pay a much higher price.
Actually, if they were to cultivate Hashirama cells, it would be possible to quickly attach a new arm to Uchiha Kagami. With a body that also possessed Sage bloodline, there would be no need to worry about the erosion of Hashirama cells. However, Hashirama cells are, after all, Hashirama Senju's cells, not Uchiha Kagami's own, so they would definitely bring some slight discomfort. Of course, due to the powerful vitality brought by Hashirama cells, Uchiha Kagami's own abilities would be enhanced, causing people not to notice this discomfort, but an ill-fit is an ill-fit.
Moreover, once research into Hashirama cells began, there's no telling who might start coveting this power. Without the Sage bloodline, ordinary people would inevitably have to make many sacrifices, just like Orochimaru, Danzo, and others did in the normal timeline, sacrificing thousands of people for one successful outcome.
If the unsuitability of an arm composed of Hashirama cells was a secondary reason, then this was the primary one. Fumori Masaki would never allow a temporary benefit to create an opening that could lead to the spread of undesirable practices.
The regeneration secret technique researched by the Medical Department uses the regenerator's own body cells as a primer, then utilizes the secret technique for reorganization, proportion alteration, division, and so on, to meet the needs of regeneration. While this undoubtedly requires a great deal of manpower and energy, it is a medical secret technique that follows the right path, and what is regenerated will inevitably be the most suitable for the person—because the cellular source of the regenerated arm comes from the person themselves.
"Then it will probably cause a lot of trouble for the medical ninjas." Uchiha Kagami reached out and touched his empty sleeve, a hint of anticipation in his heart. No matter what, having two hands was definitely better than having one. If he could regenerate his own arm, that would naturally be best.
"It's their duty. You don't need to feel like it's a bother. You fight on the front lines, and they are responsible for healing in the rear. Everyone performs their own role." Fumori Masaki patted Uchiha Kagami's shoulder. "Honestly, I really didn't expect something like this to happen."
"It's in the past now, there's nothing more to say." Uchiha Kagami shook his head. Uchiha Setsuna and his rogue group had already been dealt with, and the hawkish faction within the Uchiha clan had been largely eliminated. Even if there were some stragglers, it was unlikely they could cause a situation like Uchiha Setsuna's again.
"Speaking of which, have you heard anything about what I asked you to investigate?" Fumori Masaki suddenly whispered.
"No," Uchiha Kagami replied. What Fumori Masaki had asked him to investigate was how Uchiha Setsuna had managed to transmit the message. This matter was being investigated not only by the ANBU but also by Uchiha Kagami himself. He had even sought confirmation from Sunagakure, but had found nothing.
Even with such intensive investigation, if no method was found, there should at least be some clues. The problem was that there were no traces whatsoever of how Uchiha Setsuna transmitted the message from beginning to end.
This left the ANBU and Uchiha Kagami, who were skilled in clue investigation, somewhat perplexed.
And in the ANBU's report, Fumori Masaki increasingly felt that Black Zetsu might have been involved in this matter. Only Black Zetsu could possess such elusive stealth abilities. He had been somewhat suspicious before, which was why he had set up a barrier in the command camp of the First Combat Unit, considering various possibilities to prevent others.
Although he didn't know if Black Zetsu was truly stopped, there were indeed no further intelligence leaks afterward. Even so, there were still some lingering doubts.
Among them, what bothered Uchiha Kagami was why there wasn't a single master among the ninjas who ambushed him in the valley. If Sunagakure or Iwagakure had sent a master, even if he could still break out, he might not have been able to hold out against Uchiha Setsuna and the others until reinforcements arrived.
What if a more exhausted version of himself had lost to Uchiha Setsuna?
What if he had still died with Uchiha Setsuna, but his other comrades had been dealt with by Uchiha Setsuna's followers first?
No matter which scenario, he wouldn't be able to be here in good health. Uchiha Kagami had no doubt about this, and he also wouldn't believe that Uchiha Setsuna had intentionally omitted his information. One must know that Uchiha Setsuna wanted him dead as quickly as possible.
So, why was Uchiha Kagami's information missing from the intelligence transmitted to Sunagakure? Uchiha Setsuna couldn't have thought that way, so it could only mean there was a problem with the transmitted intelligence. Here, one could boldly speculate that the one transmitting the intelligence was not Uchiha Setsuna himself, but someone else.
Then, what was the purpose of this person not transmitting accurate intelligence? For Uchiha Kagami? Impossible. It would have been better to directly expose Uchiha Setsuna's conspiracy, which would have quickly stopped the losses and left no stain on their reputation. Even if Uchiha Kagami was intentionally omitted, as long as there were other sacrifices, it would not be without guilt—don't think that saving the life of the supreme commander can override the sacrifices of others!
This was a lingering doubt that had never yielded a reliable conclusion. Only Fumori Masaki could guess the truth. If Black Zetsu was the one transmitting the intelligence, then everything made sense. Black Zetsu's goal had always been the reincarnations of Indra and Asura. Everyone else was just an object to be used. As long as the goal could be achieved, sacrificing anyone was irrelevant, as long as they weren't the reincarnations.
However, Fumori Masaki couldn't casually reveal Black Zetsu's existence because he had no evidence and it would make people question the source of his information. Therefore, he intended to guide others to discover the truth themselves, which is why he had never let go of this doubt and had others gather information.
"Kagami, I've always had a feeling that your Uchiha clan seems to have bad luck. Every time relations between your clan and other clans or individuals start to improve, something always seems to go wrong," Fumori Masaki said.
Uchiha Kagami's heart tightened slightly. He was somewhat surprised that Fumori Masaki would say that. The Uchiha Setsuna incident indeed had a conspiracy behind it, but what about the other incidents was worth doubting? He initially thought so, but then his mind turned, and he suddenly realized that his clan did indeed seem to be quite restless. He was the head of the Uchiha clan, well-versed in the clan's past. In the past thousand years, there had been times when the Uchiha and Senju had close relations, but it always ended in failure at the last moment.
The era of Hashirama Senju and Madara Uchiha was the closest the Uchiha and Senju had been in a thousand years, yet it became tense again due to Madara's defection. This time, the Uchiha Setsuna incident also occurred, making one wonder if the Uchiha clan head's luck was truly that bad.
"Once is an accident, twice is a coincidence, so what is the third time?" Fumori Masaki stood up and slowly paced. "Kagami, you met Madara Uchiha on the path to the afterlife, right? Do you know why he betrayed the village back then?"
Uchiha Kagami had not previously elaborated on his conversation with Uchiha Madara. Now that Fumori Masaki brought it up, he hesitated for a moment before explaining the reason for Uchiha Madara's departure from the village. Fumori Masaki immediately followed up by saying, "If the stone tablet in your clan truly contained a method for perfect world domination, why didn't the Sage of Six Paths do it back then? Have you ever considered this question?"
Uchiha Kagami suddenly felt a flash of insight. Yes, if the stone tablet really contained a perfect method, the Sage of Six Paths, who passed down this tablet, should have already implemented it, but the result was not like that. He had gained Madara's life memories, and although he didn't have the higher-level Mangekyo Sharingan, he did know some of the secret texts on the stone tablet. It was precisely because the stone tablet spoke of a certain method that could save the world that Madara unswervingly tried to combine the power of the Senju, attempting to give birth to the power of all creation, which is the Rinnegan.
However, Fumori Masaki logically pointed out the contradiction between the two: if it was truly perfect, then the Sage of Six Paths should have already implemented it, and the world would already be peaceful; since the world was not yet peaceful, it indicated that the method on the stone tablet was not perfect and could not save the world, yet the stone tablet claimed it could.
Fumori Masaki knew that his logic still had some flaws. If one only looked at the surface of the Infinite Tsukuyomi, it was merely a divergence of ideals, believing it to be a method to save the world, which seemed plausible. Of course, because Madara didn't have the Rinnegan, he also didn't know the full extent of the Infinite Tsukuyomi, allowing Fumori Masaki to muddy the waters.
Fumori Masaki was consciously guiding Uchiha Kagami's thoughts, making him ponder why the stone tablet was written that way, and whether something had tampered with its content.
"Kagami, be careful in the future. This is just my personal premonition. The truth behind Uchiha Setsuna is not that simple. There might be someone else involved, watching your Uchiha clan," Fumori Masaki said.
Uchiha Kagami's heart grew vigilant. If there truly was such an unknown enemy, he couldn't afford to relax from now on.