Healing Talisman

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What Yamanaka Tohru wanted to develop was a medical tag similar to an Explosive Tag.

Yamanaka Tohru had previously come across a note by Tsunade while flipping through her journals, where she lamented that if there were a Medical Ninjutsu as portable as an Explosive Tag, the survival rate of ninjas would increase significantly.

If not for the successive deaths of Nawaki and Dan, which dealt a heavy blow to Tsunade, the idea of a medical tag might have already been realized by her.

In his previous life, Yamanaka Tohru had seen all kinds of talismans in fantasy novels, and the world of Naruto already had ready-made Explosive Tags for him to study.

An Explosive Tag seals a high-level Fire Release ninjutsu in the form of runes onto specially treated paper, and when used, its power is no less than a Jonin's Fire Release.

Yamanaka Tohru planned to follow the same pattern, trying to seal the [Healing Technique] in runic form.

Most Explosive Tags use the [Fire Sealing Method] for sealing. For sealing the [Healing Technique], Yamanaka Tohru intended to use the [Seal Evil Law Seal].

Yamanaka Tohru remembered that in the original work, the [Seal Evil Law Seal] could even seal a Curse Mark imbued with Nature Energy, so sealing the [Healing Technique] shouldn't be a problem.

However, Yamanaka Tohru failed. The [Seal Evil Law Seal] could indeed seal chakra containing the [Healing Technique], but he overlooked one point: the [Seal Evil Law Seal] was originally a technique that acted on the human body. Paper simply couldn't bear the runes of the [Seal Evil Law Seal].

After the failure of the [Seal Evil Law Seal], Yamanaka Tohru had to find another way. In the process, he tried the [Five Elements Seal], the [Fire Sealing Method], and even the [Four Symbols Seal], which he couldn't yet use proficiently, but none succeeded.

The [Five Elements Seal] and [Fire Sealing Method] couldn't seal the [Healing Technique] at all, while the [Four Symbols Seal], like the [Seal Evil Law Seal], couldn't be borne by paper.

The successive failures left Yamanaka Tohru frustrated, but he didn't want to give up. If the Healing Talisman could be successfully developed, first, the lives of Yamanaka Tohru's family and friends would be guaranteed; second, the Yamanaka Clan's property income would increase; and third, the Third Hokage would owe him a big favor.

"Kid, are you practicing Sealing Jutsu?" Just as Yamanaka Tohru was at a loss, Jiraiya appeared.

Jiraiya had just come out of the Third Hokage's office. Recently, Sunagakure's frequent movements had annoyed the Third Hokage, who planned to send someone to investigate.

When it came to gathering intelligence, the person the Third Hokage trusted most in Konoha was Jiraiya, so this task naturally fell to him.

Jiraiya had originally intended to leave the village immediately, but passing by the Third Training Ground, he saw Yamanaka Tohru scratching his head in frustration, so he walked in.

"It's Uncle Jiraiya! I'm not practicing Sealing Jutsu; I'm developing a technique," Yamanaka Tohru replied.

"Judging by your look, are you researching a medical tag?"

"Uncle Jiraiya, how did you know?"

"For this technique, kid, you'd better give up. The predecessors developed it for so long without success; how could you easily pull it off?" Jiraiya said, patting Yamanaka Tohru on the shoulder.

Hearing Jiraiya's words, Yamanaka Tohru was shocked. So people in the Naruto world had already researched Healing Talismans, but they just hadn't succeeded.

"Uncle Jiraiya, why did the predecessors fail?" Knowing that similar research had been done, Yamanaka Tohru wanted to know why the predecessors failed; maybe it would give him some inspiration.

"Well, that! I remember Tsunade said it was because Medical Ninjutsu can't be preserved for long periods," Jiraiya replied after thinking for a moment.

"Then, Uncle Jiraiya, what technique did the predecessors use to seal Medical Ninjutsu?"

"I'm not sure about that. You should ask Tsunade or Orochimaru. I'm not interested in this kind of thing. Kid, don't waste time on this. War is coming again; focus on improving your own strength." With that, Jiraiya left without looking back.

Yamanaka Tohru was never one to give up easily. Just because the predecessors failed didn't mean he would fail too. Edison failed over 8,000 times and experimented with more than 7,600 materials to invent the light bulb; Yamanaka Tohru had only failed a few times.

Over the next month, Yamanaka Tohru experimented with various materials that could conduct chakra but still couldn't find one suitable for sealing Medical Ninjutsu.

"Kid, you still haven't given up!" Jiraiya, back from gathering intelligence in Sunagakure, found Yamanaka Tohru still researching.

"Uncle Jiraiya, you're back," Yamanaka Tohru greeted weakly.

"Ahem, kid, I happened to ask Orochimaru earlier. He said the material used to seal Medical Ninjutsu back then was jade." With that, he tossed a piece of jade to Yamanaka Tohru.

"Jade?" Yamanaka Tohru slapped his thigh. Why hadn't he thought of that? All those years as a bookworm in his previous life, reading cultivation novels—all for nothing.

Yamanaka Tohru caught the jade Jiraiya threw over. This time, the runes of the [Seal Evil Law Seal] were successfully engraved onto the jade, and the [Healing Technique] was sealed within it.

Yamanaka Tohru sensed the [Healing Technique] in the jade. Sure enough, as Jiraiya had said, the medical chakra contained in the [Healing Technique] was slowly leaking away.

Strictly speaking, Medical Ninjutsu is also a form of Yang Release, though it doesn't have the miraculous healing effects of Yang Release.

"Uncle Jiraiya, do you think Nature Energy could stop the medical chakra from leaking?"

Yamanaka Tohru recalled that in the original work, after the First Hokage, Hashirama Senju, used Sage Mode, his Wood Release became much more powerful, and his recovery became faster. Medical Ninjutsu was originally developed based on Hashirama Senju's rapid healing. If Nature Energy were added to it, would Medical Ninjutsu become more stable?

"Well, that! I'm not sure, kid. You can give it a try."

Yamanaka Tohru entered Sage Mode, used the [Healing Technique], and then sealed the [Healing Technique] into the jade with the [Seal Evil Law Seal].

Yamanaka Tohru sensed the medical chakra in the jade again. The [Healing Technique] imbued with Nature Energy showed no sign of chakra leakage.

"Uncle Jiraiya, look." Yamanaka Tohru handed the jade to Jiraiya. After examining it for a while, Jiraiya found that the medical chakra in the jade remained exactly as it was at the start.

"Kid, it looks like you've succeeded!" Jiraiya looked at Yamanaka Tohru in disbelief. If Yamanaka Tohru's experiment really succeeded, it would mean a great deal to Konoha.

"Uncle Jiraiya, is jade expensive in Konoha?"

"The reward for a C-rank mission can buy three or four pieces."

Jade wasn't cheap, and it was usually used for women's accessories. Konoha ninjas rarely bought it.

"Uncle Jiraiya, we still need to observe this technique for a few more days to see if it's truly successful. If it works, then you go talk to the Hokage."

Jiraiya nodded. This technique was too important to Konoha; he had to inform the Third Hokage.

If the Healing Talisman was truly successfully developed, Yamanaka Tohru wasn't worried about Konoha monopolizing it. To maintain the medical chakra of the [Healing Technique] in the jade without leakage, Nature Energy had to be used. And in Konoha, only Yamanaka Tohru and Jiraiya could use Sage Mode.

Now, Yamanaka Tohru planned to return to the Yamanaka Clan and explain the situation regarding the Healing Talisman to Yamanaka Inoichi.

This chapter focuses on the protagonist securing benefits for the Yamanaka Clan. The research on the medical tag references some conjectures from Zhihu, and permission has been obtained from the original poster.