First of all, my surname is Uchiha. Hmm... and inside my body is a sealed Sukuna.

Not once did I try to reconcile with Sukuna. Once I confirmed he couldn’t break the seal, I began to ruthlessly exploit him.

With my Mangekyō and Domain Expansion unleashed, the strongest Bloodline Elimination in history was born—

—— Slashing Release!

Without the slightest hesitation, knowing that my acting wouldn’t fool the Third Hokage and others, I fully displayed my true Uchiha nature from beginning to end.

There was no betrayal, and absolutely no clan massacre.

We, the Uchiha clan, will rebuild Konoha from the ashes!

(Not having watched Jujutsu Kaisen is fine—this just borrows some character settings, with some creative liberties. But if you haven’t watched Naruto… why are you even here?)

[Time travel + single female protagonist + bloodline + origin from Mist Hidden + bloodline evolution]

The good news is that I have traveled through time, the bad news is that there is no golden finger!

The good news is that I traveled to the world of Naruto, and the bad news is that I traveled to the Hidden Mist Village in the Land of Water!

The good news is that he is from the Kaguya clan, the bad news is that his whole family was exiled after failing in the political struggle!

The good news is that he has awakened his Kekkei Genkai, the Shikabone Vein, and his bloodline has returned to his ancestral home. The bad news is that he is being targeted by Otsutsuki Isshiki!