What If, Sabito Never Died (Demon Slayer AU)

Blood Night

It was night time in a town, with every rooftop covered in slow flakes.
It was a quiet night time with everyone sleeping in their homes.

However, not everyone was asleep.
For most of them didn't knew about those bloodthirsty creatures that were active during the night.
People called these creatures who devoured humans for getting strength, demons.

And when the whole town's asleep, that's the time when a demon begins it's work.
One thing that the most humans didn't know was that few demons have their own “hobbies” while hunting for humans to feed upon.
Some demons just go wild and feed upon any human they come across like animals.
Some prefer to act more neatly. And such demons always caused much more loss to human lives.

In this town, which was still sleeping unknown of the danger it was in, there arrived a pair of demons who already had a unique way of consuming humans.
Once in a week, they would pick a town or village as their “target” and when almost everyone will be sleeping in their homes, they would devour every single living in the town.
This town..was unfortunately one of their victims.

“Have you really checked this out?” the first demon asked his partner, “I don't want anything to go wrong here. Last time, the town you picked had mostly old people! Do you even know how disgusting they taste?!”

“Don't worry, trust me this time.” answered the second demon.

But even they didn't knew that one person in the town was still awake.

It was already about 3 AM. The demons intentionally picked this time so that everyone will be asleep. But this peach-haired boy never really felt tired at night. He was also a very famous trouble-maker here but.. he also helped others whenever needed.

Everyone, except this boy, was sleeping.

“I can't sleep again... I just hate lying in the bed and doing nothing. Whenever I try to sleep, I get bored! And I try walking a little but then again, you can't sleep of you're not lying down” (apparently it doesn't work for Zenitsu XD).

Suddenly, he noticed footsteps and after sometime, screams coming from downstairs.

“What happened?”

As he went downstairs...he couldn't believe his eyes at the sight he saw. There, lying on the floor in a pool of blood were his parents. And in front of them was a demon.

“Oh? I didn't noticed you... You're young, you must be... delicious!” the demon gave an evil grin.

“WHO- WHAT ARE YOU?! AND WHAT HAVE YOU DONE TO THEM?!!” the boy screamed.

“Don't worry, you'll be soon joining them...”

The demon charges towards the boy but he manages to somehow get away from it.
However, the demon's claws still scratches his cheek, leaving a scar on it.
When the boy came out of the house, trying to get away from the demon, he saw the entire town being massacred by both demons.

“No..... You both... YOU'RE DEMONS!”

The demons just laughed at this reaction.

“You're right, kid. You finally got it in your tiny brain, then.”

Just when the demons were about to kill last standing human in the town... A group of people wearing black clothes and carrying a katana slays them. They didn't spoke with the boy and left without another word, just before the sunrise.

“Just who were those...?”

“Demon Slayers.”

He turned to see where that voice came from. There stood an old-looking man wearing a red mask. You could tell that he was old by his voice and silver hair.

“Who are you?”

“I'm Sakonji Urokodaki. I'm a former demon slayer myself.”

“Who are the demon slayers?”

“Those whom you just saw. The demon slayer corps is an organisation which hunts down demons and protect the people.”

“So.. they slay these demons and protect the people from.... Something like this that just happened now?”

“Yes.”

“And.... If I said that I wanted to be one of them..what would you say?”

“I assure you, becoming a demon slayer is not easy.”

“But you CAN become one, right? They are humans too, afterall.”

“You must answer one question: why do you want to become a demon slayer?”

“Just making sure that no one loses a whole town's lives again! This isn't something to take lightly, look at what those demons just did! And we don't even know how many towns they have destroyed till now. I know that maybe just one more demon slayer won't make a big difference but, I'm pretty sure that I can save one or two more lives and that's also a big thing.”

Urokodaki stared at the peach-haired boy for sometime.

“He answers quickly and clearly.” Urokodaki thought, “His scent.... It's full of energy and passion.
Maybe..he COULD be a demon slayer.”

“Very well. What's your name?” asked Urokodaki.

“Sabito.”