Synopsis

Naruto was forcibly thrown into a world filled with human eating demons and slayers who hunt them down. Carrying one of the deadliest demons within him, he tries to master his style and fix up the story line that had been altered by his unwanted arrival. Will he survive in this world vastly different from his own with nothing but fragments of his past?

Disclaimer: I do not own Naruto nor Demon Slayer. They belong to their respective authors.

Prologue

"Kakashi Sensei! Are we there yet?"

A young blonde-haired boy whined as he moped about.

"Baka! Be more patient! You've been asking that for the past one hour!"

The girl with cherry blossom hair threatened as they walked on.

Three whisker-like marks on the sides of the blonde's face drooped downwards, as the

girl continued to scold him.

"Mah, mah. Sakura, Naruto. Let's cease the fighting, okay? We're nearly there."

This time a man with white hair and a mask, namely Kakashi, spoke up.

"Tsk. Usuratonkachi."

Naruto shifted his attention to the black-haired boy standing to his right. With eyebrows furrowed, he glared at him.

"Urusei*, Sasuke-teme!"

Team 7 is currently on a mission to the Land of Waves, escorting an important man named Tazuna. They have been walking for several hours and the village is still far out of sight. Under the blazing sun, the group continued with Naruto in the front and the others trailing behind. When they have reached the lake, a sudden shift in the air made the travelers pause. Naruto turned to face the rest when he heard them stop.

"Naruto, don't go any further."

Kakashi said with an unusually serious face

"Eh? Why do we have to sto… Ahh!?"

Naruto was cut off by a gasp when a dark swirling vortex opened behind the unsuspecting blonde.

"Naruto!"

"Ano Baka!"**

The vortex swallowed the blonde whole and disappeared, leaving no trace behind.

...

Naruto was suspended in a seemingly eternal darkness, not a sound to be heard. The space filled with nothingness continued to shrink until a systematic voice resounded in the emptiness.

"Kimetsu no Yaiba World, Activated."

The darkness seeped away in an instance. Warm orange light enveloped the body

and in a flash, the scene changed into the open sky. His lifeless body fell and dived headfirst into

the stream below.

"System Error. Unidentified bug. Overwriting system. Storyline..."

"Changed."

Notes:

*Urusei – Shut up

**Ano baka – That idiot