Rebuilding Uchiha By Removing Fugaku

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"Wait a minute,"

Toki waved his hand, took out a sealing scroll from his person, and unsealed it.

Bang!

A petri dish appeared, containing Kakashi's Mangekyō Sharingan—the one with Kamui. However, due to Kakashi's insufficient chakra reserves, the eye had reverted to its Three-Tomoe state.

Without hesitation, Toki tossed the Sharingan into the machine.

As an infrared laser scanned the eye, the machine emitted a mechanical voice:

[Ding~ Scan successful. Database updated. Mangekyō Sharingan (Kamui, Left) has been added to the training program.]

Toki's pupils contracted, and a trace of surprise flashed in his eyes.

As expected!

The reason why Uchiha Setsuna and others were seeing the "Mangekyō option" was clearly linked to Fugaku's Mangekyō Sharingan.

From the moment the system was activated, one of Toki's panels had been "Family Inheritance." He hadn't fully understood how Sharingan abilities were passed down.

Now it was clear: any bloodlines or techniques of the Uchiha clan under Toki could be mass-produced through specific system buildings.

Sharingan, in particular, could be replicated through the Bloodline R&D Center.

Although Toki and Fugaku had conflicting ideologies, Fugaku had not betrayed the Uchiha clan, so his Mangekyō Sharingan had naturally been recorded and inherited.

Thus, when Toki opened the Bloodline R&D Center, Fugaku's Tsukuyomi and Amaterasu were automatically added to the database.

And now, with Kakashi's Kamui added, the database had gained yet another powerful pupil technique.

Kamui's versatility far surpasses Amaterasu's flashy but ineffective flames.

Turning to Setsuna, Toki said, "Go ahead and activate your Mangekyō. Give it a try."

---

Since Charizard evolution had nearly burned Setsuna alive, Toki knew these system features carried risks. This was why, even after building the Bloodline R&D Center, he had only allowed the clan to perform test functions without using it himself.

Hearing Toki's command, Uchiha Setsuna's face lit up with excitement.

"Thank you, Patriarch Toki!"

The Mangekyō Sharingan—an ultimate power known only to the elite few within the Uchiha. Even within the clan, only Patriarch Toki possessed such legendary abilities.

"Patriarch Toki, which pupil techniques should I choose?"

The strongest genjutsu, the strongest flame technique, or space-time manipulation... How could he possibly decide?!

Toki pondered for a moment before replying, "Choose Amaterasu and Kamui."

Tsukuyomi is overrated. It's a one-shot technique that drains chakra and pupil power at a terrifying rate. Kamui, on the other hand, is a far more versatile ability.

Even Obito had once created storm-like distortions by warping space around flames and explosive debris. While Kamui wasn't as fluid in use as Obito's other abilities, it was leagues better than just firing Amaterasu.

---

Following Toki's instructions, Setsuna entered the petri dish.

A selection menu for the Mangekyō Sharingan appeared in his mind, and he quickly chose the abilities.

As soon as he made his selection, everything went dark, and he found himself pulled into an illusory battlefield.

In one moment, he became Uchiha Fugaku, holding the lifeless body of a fallen comrade, overwhelmed with grief and self-blame.

In the next, he turned into Uchiha Obito, running excitedly to save Kakashi and Rin—only to witness the one he loved most be killed by the one he trusted most.

An endless torrent of despair, rage, and guilt surged through him, replaying the heart-wrenching scenes over and over.

---

Who knew how long it lasted, but eventually, Setsuna stumbled out of the petri dish, trembling.

He collapsed to the ground and vomited violently, his body drenched in cold sweat.

His eyes, however, had transformed into two unique Mangekyō patterns.

"Patriarch... this thing... urgh!"

[Ding~ Clan member has successfully awakened the Mangekyō Sharingan. Estimated adaptation period: 36 days.]

As the machine's voice finished, Setsuna fainted on the spot.

---

Toki crouched down and examined Setsuna carefully.

What the hell just happened?!

He soon noticed that Setsuna's spirit had suffered a severe shock.

The symptoms were eerily similar to the aftermath of Tsukuyomi.

Tsukuyomi...

Toki's expression darkened.

He suddenly thought of Itachi torturing Sasuke with his genjutsu "homework review sessions."

This machine... Was it some kind of enhanced Tsukuyomi torture simulator?!