Chapter 392: Searching for Clues

After leaving Tsunade and Shizune.

Yu arrived at the room in the Konoha Ninja Hospital, heavily closing the door behind him.

Entering the room, he was greeted by various precise medical equipment and instruments, as well as several devices similar to computers.

"It's been a long time since I was last here…"

"It looks like nothing has really changed…"

Seeing that the arrangement of the medical instruments and equipment hadn't changed much since before he left Konoha, Yu breathed a sigh of relief.

Air Door!!

While speaking, Yu opened Kaio's interdimensional door and took out four transparent glass test tubes from inside.

One of them contained the Wood Release cells of the First Hokage Senju Hashirama collected from Danzo during a previous confrontation. The other three contained blood samples from Uchiha Sasuke, Uzumaki Karin, and Kaguya Kimimaru.

"First, let's extract the genes…"

Although extracting genes from cell and blood samples is a technical task, it's not difficult for Yu, who was once a Squad Captain of the Konoha Medical Corps and is familiar with using these precise medical devices.

"All done, extraction complete…"

After spending half an hour on professional operations, Yu finally extracted the genes from Senju Hashirama's Wood Release cells and the blood samples of Uchiha Sasuke, Uzumaki Karin, and Kaguya Kimimaru.

Carefully comparing the genes of the four samples under the instrument, Yu indeed discovered a clue—Uchiha Sasuke, Uzumaki Karin, and Senju Hashirama's gene chains not only matched each other but also showed a complementary trend.

However, Kaguya Kimimaru's gene chain appeared very strange, with only parts of it matching those of the previous three individuals, but not completely.

"As I expected, it really is like this…"

Looking at the gene comparison in his hands, Yu couldn't help but mumble to himself in a daze.

Just as he had diagnosed before, Kimimaro's bloodline disease was due to an incomplete gene chain, causing partial deficiencies. Under normal circumstances, there was no problem, but the more frequently he used his Kekkei Genkai—Shikotsumyaku—the more severe the disease would become.

What is Kekkei Genkai? In simple terms, it is a hereditary condition passed down through bloodlines!

In the world of Naruto, every ninja has the chance to awaken and obtain a kind of ancestral phenomenon and ability. For example, members of the Uchiha Clan have the chance to awaken Sharingan—the ability of their ancestor Indra, while members of the Senju Clan and Uzumaki Clan have the chance to awaken Sage Body—the ability of their ancestor Asura.

Kimimaro was no different. The Kaguya Clan is the direct lineage of the ancient Chakra progenitor Kaguya Otsutsuki, but by the time it reached Kimimaro's generation, the ancestral gene in the bloodline had become almost negligible.

It can be seen that in this generation of the Kaguya Clan, aside from Kimimaro, who successfully awakened the Kekkei Genkai Shikotsumyaku and inherited the physical traits of Kaguya, all other members of the Kaguya Clan have black hair and are only focused on fighting, killing, and destruction.

In contrast, Kimimaro clearly has more space for rational thought and a closer resemblance to Kaguya's appearance, indicating that his ancestral phenomenon is more pronounced. However, the incomplete bloodline gene and the premature awakening of Kekkei Genkai have led to the outbreak of Kimimaro's bloodline disease.

This is also why Yu did not attempt to take him to Tsunade for treatment, as it is not a problem that Medical Ninjutsu can solve. Moreover, Yu's Medical Ninjutsu skills are now almost on par with Tsunade's; if he cannot solve the problem, neither can Tsunade.

"Given this…"

"Kimimaro's situation is even more complicated than I imagined…"

After setting down the gene samples, Yu pondered deeply and finally clarified his thoughts, "His bloodline disease can only be resolved by combining the Uchiha Clan, Senju Clan, and Uzumaki Clan to restore the complete Hagoromo Otsutsuki bloodline…"

"Then, by integrating the Hyuga Clan and the Otsutsuki Clan on the moon, restoring the complete Otsutsuki Hamura bloodline, and finally combining the two to restore Kaguya's bloodline, it might be possible to complete his gene chain defect and awaken the complete Shikotsumyaku—All-Killing Ash Bones…"

It indeed sounds very complicated, but after Yu's detailed analysis, he has at least found the only method to cure Kimimaro.

"Now, I already have the genes from the Uchiha Clan, Senju Clan, and Uzumaki Clan…"

"The Hyuga Clan's genes are not a problem, so now it's just a matter of obtaining the Otsutsuki Clan's genes from the moon!!"

Having thoroughly analyzed the solution to Kimimaro's bloodline disease, there was no time to waste. Yu put the four gene samples into Kaio's interdimensional space and vanished from the Ninja Hospital.

…

"By the way… the Land of Fire is so vast…"

"Finding it is like searching for a needle in a haystack…"

In a forest several dozen kilometers away from Konoha, Yu couldn't help but grumble.

After leaving the village, he, along with Haku, Kimimaro, and Hinata, had been searching the forests within the Land of Fire for three or four days, but they still had no leads.

According to the setting in the Naruto movie "The Last," the mysterious cave suspected to be an Otsutsuki Clan ruin should be located not far from Konoha in the Land of Fire. The area around it includes dense forests, a huge river, and a waterfall.

"If I remember correctly…"

"It should be somewhere around here. It's strange that we haven't found anything; it doesn't make sense."

Using Observation Haki to search thoroughly, Yu couldn't help but let out a long sigh of frustration.

"Although I don't know exactly what Yu-sama's looking for…"

Haku, walking slowly beside Yu with a warm smile on his face, said, "We've been wandering around this forest for several days now…"

"Sorry, Hinata. I brought you out here, and you've been following us around for so many days…"

Glancing at the quiet girl Hinata walking beside him, Yu apologized to her.

He had tried using SkyPath to fly up and search the skies, but even though, in the Naruto movie "The Last," Hinata and Naruto were able to find the place with Sai's super beast drawing technique in no time, he had been searching for so many days without any clues.

"It's… it's okay…"

Hearing Yu's gentle voice, the shy Hinata blushed and spoke in a barely audible voice, "As long as I can help everyone…"

"Wait… what's that?!"

At that moment, hearing the distant roar of a waterfall, Hinata, who had activated Byakugan, seemed to have seen something. Her eyes widened suddenly as she exclaimed, "Yu-nii… I found it!!"

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