Chasing Yesterday is a Naruto Fan Fic by The King in WhiteSynopsis: Takes place in an AU in which Naruto was born a girl. Most of the events of canon played out as canon until the time of the Fourth Shinobi World War. In the aftermath of the war, Naruto is dead, Sasuke is the Juubi jinchuriki, and is the Rokudaime Hokage. He has pretty much lost everything that was ever important to him, and at this point is barely clinging on to his sanity by a thread, driven forward only by a promise to Naruto on her deathbed.Due to his actions during the time when he was evil, most of the Konoha 11 and newest generation of Konoha shinobi hate him. In the midst of this, the Juubi offers Sasuke a deal: Sasuke gets to go back in time far enough to save Naruto, and the Juubi has a new chance for freedom.
This fic contains examples of the following tropes:
Badass: Sasuke and Gaara. Sasori for villain example.
Actually, its less a matter of this trope and more a matter of her concluding that there is absolutely no way that Sasuke will fall in love with her, and that even if he did, she is completely incapable of dealing with his emotional problems. As such, she begins shipping her "little cousin" (Naruto) with Sasuke.
Knight Templar: "And if Naruto has any political enemies, I will personally destroy them. If anyone else tries to hurt Naruto, I'll slaughter everyone they ever cared about."
"We have a responsibility to our future generations! To be a shinobi is to sacrifice oneself. Closing your eyes to the sunlight, distinguishing yourself in the shadows. That is the true form of ninja!"
Kinda lampshaded hilariously when a waiter cries out: "Did somebody order a large ham?" in Chapter 15 as a perfect segue between Itachi's hilarious deadpan to the large ham master himself, Lee. The fact that the comment was made about actual ham that Lee ordered makes it especially hilarious.
By chapter 16, Sakura finally realized this and backed off.
Official Couple: The Author has explicitly stated in the author note prior to the story that the pairing is Sasuke/Fem!Naruto.
Oh Crap: Tsunade's reaction when Naruto barged into the courtroom.
Also, Homura and Koharu's reaction to Sasuke dropping the ball about the Uchiha clan massacre in the middle of the courtroom. Danzo appears to have had a similar reaction, but also seems to have managed to keep it in.
Pay Evil unto Evil: Sasuke ruthlessly tortures Orochimaru with Tsukuyomi before he incinerates him with Amaterasu.
Peggy Sue: Sasuke, the Juubi, and the nine other bijuu.
Chapter 16 reveals that both B and Yugito have had their memories of the future restored by Gyuki and Matatabi respectively. And neither of them knows that the other or Sasuke, is a Peggy Sue.
Sasuke snorted. "That's just ignorant fear. You've been legally vindicated. Technically you could walk down the streets of Konoha and hit up the candy store." Pausing, the Uchiha noticed the sudden gleam in Itachi's eyes. "Not that I'd advise it, no matter how big your sweet tooth is."
Sasuke's voice was bitter, and his eyes narrowed. "What you must?" he hissed. "What you did was idiotic. There were so many things you could have done differently. But you were always one to follow orders."