•Death is Fate• | KnY x Male!Demon!reader

Prologue

(I shall post memes now :3)

In this world, there are two kinds of species.

One, being a human, who dies of an illness or maybe of an accident. A human can not regenerate any limbs that are lost from their bodies, and eat delicious food everyday.

Two...being a bloodthirsty creature. It won't die if an illness, nor will it die of any accident. When limbs of these monsters get torn off, they'll regenerate eventually. Some having immense regeneration speed, others take some time. These vial creatures only eat something that makes everyone fear them. Human flesh.

There is a way to kill these creatures though. Or more to say, two ways. One, being the nichirin swords of a organization called "The Demon Slayer Corps".  They use a killing technique named "Breathing Styles" which takes a lot of training to master. The second way, is to keep the demon busy until the sun arises. They will turn to ash, no trace of him/her being left.

NOW THAT THAT IS DONE, LETS BEGIN!

We are looking at a village. A village far from any other one. Not that it matters. No one wants to head there anyway. It's small with basically no food. People will fight over it or eat the bugs and scraps laying around. Why don't they leave the village? Well, they are too weak to travel very far and will most likely die of hunger.

We are looking at a house. It's decent sized and in a good condition. Here loves a couple who has tons of food with them. No one knows how they get it, but whenever they ask, they'll be denied immediately. Orphaned or homeless children get sent there, one of them being
(M/n). The other villagers think this couple take care of them with all their love. Treating them like their own children. Oh were they wrong...

(M/n) is 15 years old, he hasn't shown any emotions ever since the age of 9. He listens to the couples orders without hesitation. From cleaning the entire place, too some occasions where he has to kill someone. He always thinks that the choices the wife and husband made were wrong, but he never said this to their faces.

What exactly happens to these children? Well, the couple take them in with a fake, heart-warming smile that everyone falls for. They take the children into their home and shut the door.  Then hell begins.... Everyday, the children get a list of tasks or direct order from the couple.

If anyone disobeys or doesn't accept the tasks/orders, they'll be locked up somewhere in the house. And tortured till near death. If it's with a whip or belt, maybe a knife or gun, it doesn't matter, as long as they bleed. Some have died of blood loss.

It's sunset, (M/n) has being cleaning the house the entire day long. Now sweeping the outside. The stone path, the front porch, the veranda and the balcony and a few other areas. Cleaning the garden from all the leaves that have fallen.

(Wife): "(M/N)!! MAKE SURE TO CLEAN EVERY SPOT! WE HAVE A SPECIAL GUEST COMING TONIGHT!"

(M/n): "Yes ma'am."

10-20 minutes have past, (M/n) just packed away the broom and waited at the gate for the guest. After not too long, a carriage has arrived, a fine looking man in a suit with a hat atop his head got out. Him having black, short, curled hair and plumb red eyes with slits in them. The boy didn't question his appearance.

(M/n): "Sir, could you be the guest we are awaiting?"

???: "Yes, I have a business meeting with the Takahashi family."

(M/n): "You have come to the right place, right this way."

Opening the gate and letting the man in, they went to the house.

(M/n): "Sir, if I'm not too rude, may I ask you name?"

The strange man glanced at the boy, before answering.

???: "My name is Kibustuji Muzan."

(M/n): "It's a pleasure too meet you Muzan-sama."

Muzan: "And you?"

The shorter male was surprised, no one has ever asked his name. Not even the children that were put into this hell-hole.

(M/n): "My name is (M/n), no particular surname Muzan-sama."

The man had a slight hint of confusion on his face, but most people wouldn't notice. They both walked into the house, being greeted by the married couple.

(Wife): "Welcome Sir Kibustuji! We are honored."

(Husband): "Indeed we are, please take a seat. Would you like some tea?"

(Muzan): "That would be lovely."

(Husband): "OI, brat, go make some tea!"

(M/n): "Yes sir..."

The demon furrowed his brows, not liking the way they talk to a young boy who is very polite, even to the strange that just walked in. He was asking himself why he was acting like that. He doesn't feel anything towards humans, he shouldn't, but for some reason, he feels sympathy towards this boy.

Him taking this opportunity with the boy gone, he killed the couple, and walking through the house and killing off any other people. He walked back into the living room, hearing porcelain structures falling and breaking. Looking up to find the boy with tears rolling down his face.

He thought of killing him, but what happened next surprised even him. (M/n), was hugging Muzan Kibustuji, the demon lord, with tears staining the suit.

(M/n): "Thank you, thank you, thank you..."

Is what he kept repeating, the next thing he knew, there was a finger, hurried into his skull, he could feel a huge amount of liquid enter his body. Yet he didn't make a noise, nor did he flinch. And after that, he was represented as lower moon 6.

He has 2 pairs of eyes, one having an 'X' engraved in it, whilst the other has a slit.

(This was created by me)

(Muzan): "You will kill humans and eat them, there's also a marechi somewhere at the top floor. Live up to my expectations. Become the strongest."

(M/n): "As you wish, Master."

And with that, the lord left with the wind. This starting a new life for the boy. The life of a demon.

(A/n: Thank you for reading. If you want, fanart is always allowed. So are self created memes if you feel like it. I'm kinda surprised anyone is reading this, but if you did, I hope you enjoyed this :))