I Married Itachi in My Sister's Place and Became the Shadow Over His Life

I've come clean: my little sister is a reincarnator.

She got bored and went back to the main god's space.

Leaving me with a hell of a mess.

I am peerlessly beautiful!

I am the greatest swordswoman in the ninja world!

I am Uchiha Itachi's officially certified fiancee!

Countless ninjas have started conflicts over me!

But I'm freaking a guy!!! Stop pinning the blame on me!

Was I the one who started that war?

Get out of my way! I'm storming the main god's space, dealing with my sister first, then killing that main god!!!

This novel and its characters are entirely fictional. Any similarities are purely coincidental. Do not imitate.