【The Assassin and The Slayer】～ (OC x Nakamura Rio)

Prolouge 1

Years have passed since the final battle with Kibutsuji Muzan,the day where demon slayers risked and gave their life to protect humanity.Kamado Tanjiro has failed to killed the Father of all Demons,Kibutsuji Muzan barely escaped by inheriting a few power from Kamado Nezuko but he couldn't take it all.

The Pillars suffered fatal injuries but was received quick treatment by someone.The aura around the stranger was strong,like Kibutsuji Muzan.But the stranger revealed himself.A man with Long straight hair with white tips in his black hair,dark depravity blue eyes but one eye was familiar with them.The left eye had a word marked in it.It wasn't any uppermoon or lower moon but it was carved as loyalty.Markings in his face,markings like flames in his left cheeks.

"Your friends have suffered so much injuries but I'll try my best to help you"the man said.

As soon he said,Tanjiro didn't see any threats.He only smelled a emotion of sadness.But he saw him,healing all his friends and comrades.

"Kamado Tanjiro right?"the man said.

"Yes Sir but who are you?"he asked sincerely.

"My name is Li Yang "the man said with politeness.

The man offered a hand to him,an action for giving help.Tanjiro let the man cup his right side of his head,revealing a part of his brain.Suddenly,Tanjiro felt pain.The pain of his organs was being healed,mostly of his head.Two minutes have passed by he was healed.

"Thank you mister,but what are you?"He asked.

"An Abomination between our kinds,humans and demons.A fairy tale,a myth,a legend.I'm a half breed,half human and half demon.The Black Reaper"the man said with seriousness in his tone.

Those days were the demon slaying corps was accepted by the government.Their ranks were changed through the years.The lower ranks are called 3rd Class Demon Slayer,2nd Class Demon Slayer,1st Class Demon Slayer.The medium ranks,Senior Class Demon Slayer.And Finally the higher ranks,Associate Special Class and Special Class Demon Slayers.The name of their demon slayer corps are now called The Commission of Counter Demon Slaying Corps,CCDSC for short.

Years passed by,Tanjiro's descendant was nowhere to be seen.Location was unknown.For Nezuko,she still alive with her descendants.But the one who saved them?His descendants were mostly nowhere to be seen due to their identities.

The Myth and the legends that feared all of human kind and demon kind....

To be continued......