I do not own demon slayer or naruto, its belong to is original owner
Prologue: the Uchiha
In the village of Nogata village was a small home, and in that home was a dark-haired young woman and dark blue eyes with a dark red kimono. And her name is Tsutako Tomioka. Tsutako was walking around the estate as she is looking around.
tsutako: Giyuu-Giyuu, where are you. Huh if I were Giyuu, we're can he be.
Tsutako close her eyes in a few minute as she reopened them, hers eyes started turning red with a commas next to it, as she look around to where Giyuu is at, as she look around she saw a bush is moving around. Tsutako saw this as she close her eyes turn it back to normal to it's dark blue eyes and a smirk on her face as she walk away.
as Tsutako slowly walk away, behind the bush was boy with a messy black hair tied back low ponytail, this was Giyuu. Giyuu slowly look up, seeing his sister is gone as he sit back down giggling.
Giyuu: hehe.
???: found you.
Giyuu got grab as he got startled to death. The on who grab him was his sister Tsutako as she started giggling.
Giyuu: whoa.
Tsutako: haha, you think you can hide from me Giyuu.
Giyuu: oi that the fare née-san you use your sharingon on me.
Tsutako: true, but I'm only using one commas only.
Giyuu: fine I guess that's count.
Tsutako: come on, it's time for bed, its getting pretty late.
Giyuu: can you tell a story once we get to the room.
Tsutako: hmm sure why not.
inside the estate.
when the two siblings went inside the estate as they went and lay down on the Futon.
Tsutako: okay what kind of story you want, there so many books on the self.
Giyuu: hmm maybe something new. We been ready all these books, so many time and I kinda want a new story.
Tsutako: hmm okay I got one, how about a story about our ancestors.
as the light went down as Tsutako lay next to Giyuu, as she tell the story.
long ago the Tomioka was not originally our founder name, but the Uchiha, we were called the Uchiha cause of an extraordinary eye called the sharingon that can cause illusion known as genjutsu. We were the most powerful and proud clan that ever existed, until a clan called the senju clan came, they are the most powerful clan that can unravel us the Uchiha. On then on the two clan declare war on each other, bloodlust of who ever is the most powerful clan.
A few years has past since the two clan fought, as peace has finally arrive between them. Learning a equal turns from one another, as they are now allies.
end
on then on Giyuu fell asleep, Tsutako put a blanket on him, as she slowly kisses his forehead. Tsutako stood up on Giyuu futon,as she went to the other side of the room, with a sad expression of her face.
Tsutako*sad* oh Giyuu, I wish I can tell you the true story about our clan down fall, but you are not ready yet, as you are just a child.
In the other side of the room was a empty room. Tsutako went on the empty room as she sit down to open one of the tatami floor, Inside of the floor was a door. When Tsutako grab the handle on the doorknob and open it, revealing to be a book as Tsutako grab the book and hug it for a moment.
Tsutako: once you get older Giyuu, I'll show you the truth about our clan origins And how they got destroyed by one man, a man who called himself.
the demon king.
Muzen.
end
hope you guys like it, I got this ideas by a book I read called the Uchiha in the demon world by noLifeki, you can check it out on wattpad. And also I'm not trying to copy write anyone it's just pop out of my head. Anyways I'll see you guy on another chapter, bye.