The Origins of the Senju Clan and the Uzumaki Clan

Konoha Village was not prosperous.

At least, Konoha Village in this era was not prosperous enough.

Many of its buildings were somewhat crudely constructed. It seemed the villagers had been too busy with their affairs and had thrown them up in haste.

Shirou Emiya did not care about the village's simplicity. He merely looked over Konoha Village's scenery with curiosity, deeply interested in the sights he saw after being revived.

"This is the village where we live."

As Tobirama Senju signaled for the Anbu to tighten security, he spoke with Shirou Emiya about the stories of this era. "It has probably been over a thousand years since Lord Shirou's time..."

"A thousand years?"

Shirou Emiya looked somewhat wistful. He let out a soft sigh. "No wonder the style of these houses is so different from what I saw before..."

After commenting on Konoha's buildings, Shirou Emiya seemed to suddenly realize something. Joy abruptly appeared on his face. "Now that I think about it, a thousand years have passed. Medical Ninjutsu must be highly advanced by now. At the very least, there were no techniques capable of reviving the dead in our era! The wisdom of later generations is truly astounding."

"..."

Tobirama Senju's expression immediately became subtle.

"I am somewhat ashamed..."

Tobirama Senju let out a long sigh, hoping the other man would not be too disappointed in this era's medical standards. "The forbidden technique that revived Lord Shirou was meant for combat. Even I only managed by chance to preserve Lord Shirou's consciousness. The Medical Ninjutsu and medical technology of this era remain much the same as they were when Lord Shirou first established them..."

"Is that so?"

Shirou Emiya's expression visibly darkened, as though his ideals had been shattered. "In the end, humanity still used the power of Chakra for war?"

For a Medical Ninja, war was undoubtedly the most detestable thing.

Because the Senju Clan had always preserved Shirou Emiya's crystal coffin, Tobirama Senju had heard many stories about Shirou Emiya since childhood. He could guess Shirou Emiya's ideals, but he still had to make this senior face reality.

"Everything was for survival."

"To survive the cruel Warring States Period, we could only keep using Chakra to improve our combat abilities."

Tobirama Senju did not hide anything. He described the chaotic Warring States Period, while also taking the opportunity to praise his older brother before Shirou Emiya, hoping the latter would understand just how important his brother was in this era.

"Fortunately..."

"The war finally ended."

"My older brother, Hashirama Senju, used his immense strength to completely bring an end to the chaos that had lasted since the Warring States Period, establishing a peaceful system of nations and shinobi villages."

"We invited other shinobi clans to establish Konoha, allowing shinobi who had once slaughtered one another to set aside their hatred and become companions who relied on each other within the same village."

"As for the future..."

Tobirama Senju paused, taking the opportunity to paint a rosy picture for the Medical Ninja founder from a thousand years ago. "As long as my brother's injuries can be healed without affecting his lifespan, his prestige will surely allow the Shinobi World to maintain peace forever. Medical Ninjutsu will certainly make even greater progress in the future."

"..."

Shirou Emiya's gaze also became subtle.

Yet Shirou Emiya ultimately did not directly expose Tobirama Senju's empty promises. He merely sighed faintly. "Do not worry. I have never failed one of my patients, especially when your surname is Senju..."

"..."

There was no embarrassment in Tobirama Senju's expression.

In truth, Konoha Village's Hokage Assistant had never cared much about saving face. If he could accomplish his goal, he did not care what impact it would have on himself.

However...

This saint who had been placed upon a pedestal a thousand years ago seemed to have a story?

Tobirama Senju recalled Shirou Emiya's relaxed demeanor when he mentioned the Senju Clan and could not help probing for information. "Lord Shirou should have some connection to our Senju Clan. The children of our clan have grown up listening to your stories..."

"You could say there is a slight connection."

"If you are Ashura's descendants..."

"Ashura?"

"That is right."

Walking beside Tobirama Senju, Shirou Emiya casually brought up the history he had experienced. "I once had a friend named Ashura. He could not use the surname left behind by his father, so I gave him two surnames as alternatives for his descendants..."

"One surname was Senju."

"The other was Uzumaki."

Shirou Emiya looked at Tobirama Senju and sighed. "It seems Ashura's descendants still chose the surname Senju..."

"..."

Tobirama Senju's eyes abruptly widened!

Tobirama Senju had never expected his clan's surname to have originated this way!

This was not false!

Because those two surnames truly existed.

The shinobi clans that had developed from those two surnames had endured to the present day. The Senju Clan and the Uzumaki Clan just happened to be distant relatives who shared the same ancestor.

"Actually..."

"Both Senju and Uzumaki are in use."

"The Uzumaki Clan, which bears the other surname, is our distant relative."

Tobirama Senju took a deep breath and spoke solemnly. "This is truly unexpected. The surnames of the Senju Clan of the Forest and the Uzumaki Clan both came from Lord Shirou..."

When his older brother woke up, he would probably have plenty to say about this.

He had used the forbidden technique Impure World Reincarnation to revive a senior deeply respected by the world. More importantly, this senior seemed to have an extremely close relationship with their ancestor.

"Time flies, and the world changes."

Shirou Emiya's voice was full of age and nostalgia, as though he missed his old friend. "I never imagined that after so much time had passed, Ashura's descendants would still exist..."

"..."

Tobirama Senju remained silent.

Because Tobirama Senju could tell that Lord Shirou and his ancestor Ashura must have been very good friends.

This was a good thing.

At the very least, he knew the other man was most likely friendly.

Although Tobirama Senju believed that someone like Shirou Emiya, whose reputation had withstood the test of history and time, was trustworthy enough, he remained extremely cautious whenever it came to his older brother. That temperament prevented him from placing complete trust in any power beyond his control.

For example...

The Uchiha Clan within the village.

Although the Uchiha Clan was also part of Konoha Village, Tobirama Senju could not completely trust this clan whose power was beyond control...

Especially since a few days ago, Madara Uchiha, the former Uchiha Clan head who had left Konoha years ago, had suddenly controlled the Nine-Tails to attack Konoha and even severely injured his older brother.

Because of this.

Tobirama Senju had ordered the Anbu to intensify their surveillance of the Uchiha Clan.

Although Madara Uchiha had finally been killed after his older brother made up his mind, and these Uchiha Clan members might be innocent, Tobirama Senju could not guarantee that another dangerous figure like Madara Uchiha would not emerge among them in the future...

After all...

His older brother's appearance in the Senju Clan was an exception...

But Madara Uchiha's emergence in the Uchiha Clan was not an impossibility.

The Uchiha Clan possessed the Sharingan, a Kekkei Genkai created by evil Chakra within their bodies. It could evolve without anyone being able to predict when, and perhaps another dangerous and evil person like Madara Uchiha would eventually appear.

This was a hidden danger.

"I wonder..."

"Whether Indra's descendants still exist..."

At this moment, Shirou Emiya suddenly mentioned an unfamiliar name. Seemingly worried that Tobirama Senju would not understand, he began recounting Indra's story.

"Indra and Ashura were brothers."

"Back then, Indra's ideals differed from ours."

"Ashura and I believed Chakra should be a power that allowed people to understand one another and save the world. Indra believed Chakra was a power to rule the world..."

"In the end..."

"We went our separate ways."

"I do not know what surname Indra's descendants use."

When Shirou Emiya reached this point, he seemed completely unfamiliar with Indra's descendants. He carefully described their traits.

"However, his descendants should have inherited a strange and powerful Kekkei Genkai. This Kekkei Genkai produces a unique Chakra that manifests in the eyes. After evolving, it can even use powerful and bizarre ocular techniques..."

"That ocular technique is called the Sharingan."

Tobirama Senju took the initiative to supply the name of that Kekkei Genkai.

The Hokage Assistant of Konoha Village's eyes darkened. Who would have thought that Indra and Ashura were brothers? That troublesome clan also had ties to the Senju Clan...

Still...

The Uchiha truly were evil by nature!

The ancestor of the Uchiha Clan had actually been so evil!

Compared to Ashura, the righteous ancestor of the Senju Clan, Indra, the ancestor of the Uchiha Clan, had harbored the evil ambition of using Chakra to rule the world!

Even a Medical Ninja of noble character like Shirou Emiya had been unwilling to associate with the Uchiha Clan's evil ancestor!