Demon Slayer: The Journey That Began When I Became Yoriichi's Sister

Yuko had a nightmare in which Iwakatsu had turned into a ghost.

She was suddenly awakened, her whole body soaked in sweat.

Yuko was breathing heavily, her mouth dry.

She found the teacup on the table in the dark, and only after drinking a cup did she feel a little better.

It's true what they say, what you think about during the day, you dream about at night.

Yu Zi let out a long breath, estimating the time it would take for Yan Sheng to complete his mission.

The location where Yan Sheng was carrying out his mission was not far, only a two-day walk away.

I've been away for a week now, and if things go well, I should be back by now.

Is it...

Yuko shook her still-dazed head and made a self-deprecating laugh.

They're quite adept at scaring themselves.

She returned to bed and was about to lie down when a gentle breeze suddenly arrived, and a figure abruptly appeared in the room.

Yu Zi felt a chill run down her spine. She used her hands to support herself on the bed, flipped over to the corner of the wall, and took the blade.

Yu Zi shouted at the shadowy figure, "Who's there!"

The shadowy figure ignored her and went to the table, lighting the oil lamp.

With the help of that dim light, Yuko could make out the clothes and back view of the person who came in; it was Iwakatsu.

"Dude, you're going to scare people to death by doing this! Breaking into a girl's room in the middle of the night will make you look like a pervert!" Yu Zi couldn't help but relax and complained.

However, just as she was about to put the Nichirin Blade back on its stand, Iwakatsu, who was holding an oil lamp, turned around, and what came into Ikuko's view was a demon with six eyes.

Yu Zi's pupils suddenly contracted, and her whole body felt ice-cold, as if she had fallen into an ice cave.

Is she still dreaming?

But why is she so lucid now?

After a long silence, Yu Zi's jaw trembled slightly as she squeezed out a few words.

"why?"

Yan Sheng's face was blank... no, at this moment his face was covered by six eyes, and no human expression could be seen.

Iwakatsu's calm voice rang out, "Ikuko, you should become a demon too. That way, it won't matter if it's your lungs..."

"I'm asking you why!"

Yu Zi's angry voice interrupted him, like a tiger about to go berserk, her hand holding the knife trembling, almost unable to resist drawing it.

As a modern person, Yuko is very open-minded.

Like Nezuko, who was forced to become a demon; like Tamayo, who, after becoming a demon, ate many people but eventually realized her mistakes and began to atone for her sins.

Yuko is understanding and has a friendly attitude.

The only thing that cannot be forgiven is voluntarily becoming a ghost.

This is different from the battle between good and evil in martial arts novels. Even the so-called evil faction may include people who have never done anything wrong.

But evil spirits are different; evil spirits will definitely eat people!

This is something that no one with normal values ​​can accept!

Looking at Iwakatsu's ugly appearance, Yuko didn't feel scared, but rather extremely angry.

Following closely behind is an emotion called heartbreak.

After living together for over twenty years, does Yu Zi really have no feelings for her family?

Of course there is.

Although Iwakatsu is too stubborn in many ways, causing Ikuko to constantly break down and clamor to hang him on a certain sweet potato, he is not without a kind and gentle side as an older brother to his younger sister.

Yoriichi, who is slow to understand emotions, has always regarded Iwakatsu as a gentle older brother.

She had already tried so hard to comfort her...

Yu Zi's nose tingled, and realizing that tears were about to well up in her eyes, she clenched her teeth and forced them back.

Ignoring the anger on her face, Yan Sheng spoke again: "If you become a demon, you will have endless years to hone your sword skills, and the pain in your lungs will be easily healed."

Click~

Yuko slowly drew her Nichirin Blade, her expression somber: "I didn't come into this world to become a demon."

She wanted to... cut off Yan Sheng's neck!

Yuko gently exhaled a white breath, "Snow Breathing - Land Form - Snowfall Across Ten Thousand Miles!"

With a powerful strike, the Nichirin Blade held high in his hand unleashed a terrifying white wave of sword energy that reached Iwakatsu in an instant, as if it would cleave him in two at any moment.

Hey~

A crisp sword rang out.

In Iwakatsu's hand, a sword covered in eyes and reeking of decaying flesh and blood forcefully stopped Ikuko's Nichirin Blade.

This is a long sword forged by Yan Sheng with his own flesh and blood, named Xu Ku Shen Qu.

The stench emanating from the sword nearly made Yuko faint, and the gloom in her eyes was almost overflowing.

"You! Did you eat someone?!"

Only a ghost that has eaten humans would have such an aura.

Yan Sheng was not given a chance to answer.

"Snow Breathing, Fifth Form, Snow Walk".

Yu Zi's figure vanished in the darkness, turning into a wisp of white light, like lingering snow in the wind, scattered as the wind passed.

Snowwalking is not an offensive sword technique, but rather a footwork technique that allows one to conceal their form.

However, the next moment, Yan Sheng stretched the Xu Kushin behind his back without turning his head.

clang!

Yu Zi's eyes narrowed slightly, and her wrist, which was slashing at Yan Sheng's neck, trembled incessantly, but she was unable to make any progress.

Yan Sheng gently deflected her attack, and the slight shame in his heart dissipated.

I've become stronger.

He could clearly sense it.

Yuko, who had been pushed away, adjusted her posture in mid-air, landed with both feet and pushed off with force, shooting towards Iwakatsu like a human cannonball.

"Snow Breathing - Seventh..." As she breathed heavily, a tickling sensation came from her throat, accompanied by waves of pain in her lungs. As if she were anemic, Yuko's vision went black, and she bumped into a table in a daze.

"Cough cough..."

A few drops of blood dripped from Yu Zi's lips. She didn't have time to pay attention to them and quickly got up, looking up at Yan Sheng.

However, Iwakatsu was no longer there. Yuko was slightly startled and quickly turned around.

"You'll understand someday."

This was the last sound she heard before she fell into a coma.

Yan Sheng gently tapped her neck, knocking her unconscious.

Yuko is only twenty-three years old, and she has three years left before the age limit for the markings expires. The closer one gets to death, the more one fears death.

Yuko, who dreams of becoming the strongest swordsman, will surely choose the same path as him when faced with life and death.

Yoriichi, I was right.

……

Almost while Yuko was unconscious, Yoriichi, who was on a mission, encountered the Demon King in a bamboo forest.

The Ghost King was dressed in magnificent clothes, followed by a woman with a faint sorrow on her face.

Yoriichi understood everything just from meeting him.

Why was I born with such extraordinary talent? Perhaps it was precisely to defeat this so-called progenitor of demons.

The Ghost King was filled with a violent life force, like magma erupting from a volcano, boiling and surging, eager to devour everything.

"I'm no longer interested in swordsmen who can use breathing techniques." On their first meeting, the Demon King Muzan Kibutsuji said with an arrogant smile.

The moment the Demon King finished speaking, his arm tore open and lashed out at Yoriichi like a whip. The astonishing speed and power sliced ​​through the bamboo in the blink of an eye.

That was the first time Yoriichi had ever felt a chill down his spine since birth.

Almost simultaneously, Yoriichi's eyes saw through the truth about Muzan's seven hearts and five brains.

Yoriichi completed the thirteenth form of Sun Breathing, and the raging orange-red flames instantly engulfed Muzan's entire body with terrifying power and speed.

As the flames died down, Muzan, supporting his severed head, stared in bewilderment.

Yoriichi slowly stepped forward, holding the crimson sword. There was a question he desperately wanted to ask.

What do you value life?

Muzan's face, which had turned red and black with anger, was covered in bulging veins.

Yoriichi suddenly turned his gaze to the girl brought by the Demon King. She did not step forward to help, but instead stared expectantly at the beheaded Demon King.

Just as Yoriichi was about to deliver the final blow to Muzan, the sound of Muzan clenching his teeth rang out, and he instantly split into 1,800 pieces of flesh, which shot out in all directions.

In a moment of haste, Yuan instinctively swung his blade, instantly slicing 1,500 pieces to pieces.

However, more than 300 pieces, when combined, contained a chunk of flesh roughly the size of a human head that escaped.

Due to the sudden situation, Yoriichi stood there in a daze.

The girl's crying beside him brought him back to his senses.

"It was so close, so very close, yet we've already overcome the weakness in my neck."

The girl knelt on the ground, gritting her teeth as she spoke, and fiercely grabbed her hair.

"Why don't you just die! You filthy man!"

"Kibutsuji Muzan!"

Overwhelmed with grief and anger, the girl stared blankly at her own hands.

"Not dead? Why am I not dead?"

Perhaps it was because Muzan was weak that he was temporarily freed from Muzan's control.

She really didn't look like a ghost at all, and Yoriichi comforted the panicked girl named Tamayo.

I learned a lot of information about Muzan from the other party.

Furthermore, she said that the progenitor of demons, Muzan Kibutsuji, probably will not reappear before his death.

After making a pact with Tamayo to help defeat Muzan, the Demon Slayer Corps members found Yoriichi.

The Rengoku family's swordsman, Flame Pillar, shook Yoriichi's arms: "Iwakatsu turned into a demon and killed our lord. Ikuko is still unconscious after fighting him."