Naruto: Impersonating Madara to Build the Strongest Uchiha Clan

[Naruto] + [System] + [Uchiha] + [Political Intrigue, Everyone Is Smart]

From the clan massacre night, he impersonates Madara Uchiha and leads the Uchiha Clan in faking their deaths to escape Konoha. From then on, he begins restoring the Uchiha Clan to glory.

What?

Sunagakure is mistreating Gaara? The entire Uchiha Clan mobilizes to steal the gold dust and snatch Gaara.

It's bad enough that Konoha bullies Naruto, but they dare bully Sasuke, the Uchiha Clan's genius? An uncle might put up with that, but an aunt won't! He drives a wedge between the Five Great Nations, leaving the old Third in a fluster.

When the Shinobi World learns that Madara Uchiha is still alive, everyone panics.

Itachi: "So you didn't kill my dad. Are you my ancestor, then?"

Obito: "I can't even tell whether this kid is really an impostor anymore."

Nagato: "Isn't collecting the Tailed Beasts the Akatsuki's job? How did the Uchiha Clan secretly collect them all?"

Kakashi: "Guy, no need to hold back that kick."

Guy: "I twisted my ankle today. Next time, for sure."

Jiraiya: "If I'd known Madara Uchiha was still alive, I wouldn't have become the Fifth Hokage."

Hashirama Senju: "Uchiha Madara, how could you possibly still be alive?"

Madara Uchiha: "You're Madara, so who am I? I must have gotten up too quickly. I'll go back to sleep."

Nai Yuan uses the Myriad Things Collection System to collect Tailed Beasts, recruit Jinchūriki, help Itachi and Sasuke attain the Eternal Mangekyo, and build the strongest force.

What? You say there are also the Three Great Sage Lands?

Nai Yuan clasps his hands behind his back: "Aren't those just three little pets?"