Naruto: Did I Become Madara's Little Brother?

[Hokage + System + Founding a Village + No Romance + Brother Complex] He wakes up to find he has transmigrated into the Warring States period of the Naruto world and become the twin brother of Uchiha Izuna? As a character who doesn’t exist in the original story, Uchiha Yuan feels immense pressure. To ensure his own survival, he has no choice but to keep getting stronger, and stronger, and stronger. He punches the Senju and kicks the Hyuga, rescues the trapped girl Uchiha Hikari, and makes anyone who wants to oppose the Uchiha face him first. (Hikari is an original character from Boruto: Naruto Next Generations and can be enjoyed without affecting your reading experience.) Years later, he has become the third legendary ninja feared by all. Izuna: “Brother Yuan, save me!” “Who dares bully my little brother Izuna?! Are you looking to die?!” Madara: “Yuan, if we join forces, we can create true peace.” “Well said, Madara. Let’s go! We won’t bother with Hashirama Senju!” Power is the first foundation of peace. Tremble beneath my strength, Ninja World!