My Sign-in System in Naruto

Although Kakashi's orders were to settle Haru, he wasn't about to spend his own money to buy Haru a house.

Moreover, this wasn't something that could be decided on a whim.

After some thought, Kakashi simply took Haru back to his own home.

After all, he lived alone and had plenty of spare rooms.

Haru naturally didn't object to Kakashi's decision.

Kakashi's house wasn't located in the center of Konoha but in a more remote area.

'Kakashi's family doesn't seem to be very well-off.'

From a distance, Haru could see Kakashi's house. It looked like a single-story wooden structure. While the area was large, considering the world of Naruto, where land was abundant and the population sparse, it wasn't unusual for every household to have a big house.

"This is it."

Kakashi hadn't said much along the way, only speaking up once they arrived at their destination.

"Okay."

Haru nodded and followed Kakashi inside. The house was a simple wooden structure, surrounded by a wooden fence that formed a unique courtyard.

The interior of the house, while ordinary, was clean and tidy, clearly well-maintained by Kakashi.

"You can stay here until we find you a new place."

Kakashi first gave Haru a tour of the house, then assigned him an empty room.

However, the innermost room was tightly sealed, and Kakashi acted as if it didn't exist.

'Maybe that room belonged to his father.'

Haru thought to himself.

"If there's nothing else, I'll head back to the Third Hokage now."

Kakashi waited for a moment, wanting to see if Haru had any other requests.

After receiving Haru's response, Kakashi left without looking back.

Although they would be living together for a while, Kakashi didn't want to get too close to Haru.

After all, it was only temporary.

"Sure thing." Haru smiled and nodded, watching Kakashi's back until it disappeared before letting his smile fade.

"Phew…"

Haru took a deep breath, then pulled Shisui's eye out of his pocket. This was the biggest reward from his battle with Danzō.

However…

Haru had no intention of transplanting the eye right away.

First, it would hurt.

Second, it wasn't necessary.

The Sharingan was indeed a powerful ocular technique in the world of Naruto.

Kakashi, with just a three-tomoe Sharingan, had become the Copy Ninja and made a name for himself. Let alone the Mangekyō Sharingan, which was known as the strongest genjutsu Kotoamatsukami.

The temptation of this eye was immense for any ninja.

But not for Haru.

Because the Sign-in System had already proven that its rewards weren't limited to Wood Release. It could also grant ocular techniques like the Byakugan.

If the Byakugan was possible, why not the Sharingan?

All Haru needed to do was wait for the next sign-in and unlock the Sharingan.

Most importantly, if someone who wasn't an Uchiha transplanted the Sharingan, they wouldn't be able to deactivate it, constantly draining their chakra.

Although Haru's chakra reserves were a bit larger than most…

Aside from that, he would also need to hide the eye in darkness, like Kakashi or Danzō.

It was possible, but unnecessary.

As for using Kotoamatsukami, Haru could follow Itachi's example and implant the eye into an animal, using it at critical moments.

"But for now, I need to preserve this eye."

Haru muttered as he searched Kakashi's house for a suitable container.

Thanks to the Byakugan, Haru didn't need to rummage through things. He just needed to confirm and retrieve what he needed.

Haru placed Shisui's eye into a glass bottle, then spent half a day preparing a nutrient solution to fill the bottle.

"This should do it."

Haru shook the bottle containing the Sharingan. "Speaking of which, although Kotoamatsukami is known as the strongest genjutsu, it takes several years to use it once, right?"

"Wait, I think in the original story, it was said to be over a decade…"

Haru frowned, unsure if he was remembering correctly, but he felt like Itachi had mentioned this.

The problem was, when Shisui was alive, he had said he could use Kotoamatsukami to stop the coup, only to be killed by Danzō.

Even if Shisui had used Kotoamatsukami once before dying and then given it to Itachi, the latter would have only been thirteen at the time.

By the time of the Fourth Great Ninja War, Itachi would have been twenty-one. No matter how you calculated it, it wouldn't add up to over a decade.

"Forget it, I won't dwell on this."

Haru shook his head, deciding not to overthink it, and instead turned his attention to the issue of Hashirama's cells.

Although he could use Wood Release, in reality, he was only enhancing its power with his massive chakra reserves. He didn't possess Hashirama's Yang attribute or know Sage Mode.

So Haru wasn't sure if his cells could reduce Kotoamatsukami's cooldown.

"And I definitely don't plan to transplant the Sharingan into other parts of my body like Danzō did. That's just disgusting."

Haru sighed, deciding to first implant Shisui's eye into an animal and then slowly research ways to shorten the cooldown.

With that in mind, Haru carefully stored Shisui's eye and sat down on the tatami.

"Speaking of which, the timing of the Third Hokage's arrival was a bit too convenient."

Haru suddenly frowned. Earlier, he had only been focused on how to seize Shisui's eye and kill Danzō.

When the Third Hokage arrived, he hadn't thought much about it.

But now that he had some free time, he couldn't help but ponder.

After all, the Third Hokage possessed a secret technique that no one else had used.

Telescope Technique!

By understanding the target's chakra, he could observe them from a distance.

If the Third Hokage could use this technique to keep an eye on Naruto, he could also be using it to observe Haru.

"If I remember correctly, Danzō's arm full of Sharingan was collected after the Uchiha massacre."

"But what about before that?"

During the Third Great Ninja War, Konoha had fought against multiple enemies.

It was impossible for the Uchiha clan not to participate in such a large-scale war.

In fact, Obito had died during this war.

Not only that, but Ao from Kirigakure had also collected a Byakugan on the battlefield.

If Ao could do it, could Danzō have also collected some Sharingan during the Third Great Ninja War?

"Izanagi…"

Haru's gaze sharpened. He seemed to understand why some people, despite being strong, were overly cautious.