Naruto: I Transmigrated as an Uchiha, and Became the Lord?

The overworked office slave Ryosuke is sent flying to the Naruto world by a truck and becomes a member of the Uchiha Clan.

With the night of the clan's massacre looming three years away, Ryosuke is deeply troubled.

At the critical moment, the System finally awakens.

[Welcome back, Lord Shendu. The whole world will tremble at your name once more.]

Huh?

"W-wait a second. I'm Uchiha Ryosuke, not some prison dragon."

[After living another life, Lord Shendu has learned to lie low and conceal his identity for now. Truly a cause for celebration.]

[You were imprisoned for a thousand years, and your abilities in every area have been severely weakened.]

[So, Lord Shendu, let's go find the twelve talismans scattered across the Shinobi World, along with the other magical artifacts!]

"Where the hell am I supposed to find twelve talismans?! And is this giant green decoration any use at all?!"

"Wait, you call the corresponding ninjutsu talismans?"

Many years later, Ryosuke has gathered his lost powers and stands atop Hokage Rock.

"Hahahaha! Now I have everything I need!"

"Otsutsuki, right? Come at me!"