10 years ago in the war between Land of Earth and Land of Demons a demon was created.
He's powers were unreachable high that not even the strongest ninja's could defeat it.
During the Great War the villages were under attack by this strong demon.
Using his fel red sword he was throwing magma on all the houses.
He burned them all until he reached a village called Hidden Village of Grass.
The hokage decided to do something about this demon and trapped him inside a boy's body.
He's name was Mitcheru.
He knew that this boy could bring danger to his Village and decided to had him killed by one of his loyal ninja's.
When the ninja's left the village, they became to focus on there mission and gone far away from the village so that noone could know what the Hokage was planning with the young child.
When the ninja's were far enough they wanted to assassinate the kid but for some reason they decided to stop and let him die all by himself.
"He doesn't have food anyway" says the royal ninja of the village
And they all left the kid alone.
What they didn't realised was that there was a cute women picking the child up.
She tough he was left behind and brough him to her own village.
In the Village of Mist he grew up and became a Shinobi.
Our story begins on the age of 12.