Naruto: Becoming Itachi and Sasuke's Big Brother from the Start!

[Two Male Leads (Woman Reincarnated as a Man) + Growth and Battles + Mild Everyone-Loves-the-Protagonist Elements + Dark]

After dying unexpectedly, I transmigrated into the world of Hokage and was reborn into the Uchiha Clan. By a twist of fate, Uchiha Fugaku adopted me as his eldest son-and so Uchiha Akatsuki, a boy who never existed in the original story, came into being.

You want to know what it's like being Itachi and Sasuke's big brother?

Let me tell you: it's pure misery!

Fugaku: "Akatsuki, for the honor of the clan, you must graduate early!"

"Yes, Father."

Fugaku: "Akatsuki, for the honor of the clan, you must join the military and go to war."

"Yes, Father."

Fugaku: "Akatsuki, for the honor of the clan, you must join the ANBU under the Hokage's direct command."

"As you command, Fa... What?"

Only at this point did the ever-obedient Uchiha Akatsuki finally realize something was wrong.

If I remember correctly, isn't all this supposed to be Itachi's job?! If I'm doing everything, what's he going to do? Just look at how old he is-he hasn't even developed a single tear trough yet! Is that reasonable? At least try to be less obvious about playing favorites, Father!

Just as Uchiha Akatsuki was ready to throw in the towel, someone suddenly tugged at the hem of his clothes.

He turned around to find his two little shadows behind him: Itachi, as calm as still water, and Sasuke, his face full of sunshine. Raised by Akatsuki, both boys were positively glowing with health, looking as though they'd never suffered a day in their lives. Their repeated cries of "Big Brother" left him sighing helplessly.

Fine, fine. Since I'm their big brother, I'll see this through to the end. As long as I keep shouldering the burden, life is bound to get sweeter eventually, right?

But as he kept shouldering that burden, Akatsuki realized something was wrong again.

Sweeter, my ass! I've got the villain's script!

(Hero Turns Villain, Fake Romance, Real