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

While Yuko was being held back by her boss, Enmu arrived at the edge of Yuko's dream—the realm of unconsciousness.

Nightmares cause dreams to not extend infinitely, but rather to form a ring centered on the dreamer, with the outer edge of the dream world being the so-called unconscious realm.

The core of the spirit lies hidden in the unconscious realm. If the core of the spirit is destroyed, the dream's owner will be rendered useless.

Upon reaching the outer edge of the bamboo forest, Yanmeng's face lit up with joy: "Found it."

For nightmares, finding the dreamer's unconscious realm is incredibly easy, almost like having a navigational guide.

With a casual flick of his wrist, he broke through the unconscious realm at the edge of the dream, and Nightmare stepped directly inside.

A feeling of weightlessness came instantly, followed by a surge of icy water that chilled me to the bone.

water?

Nightmare sank into the icy water and subconsciously looked around.

All around was covered by pitch-black icy water, and beneath their feet was a deep darkness, as if they were at the bottom of the ocean, with no light in sight.

It seemed as if some indescribable monster was lurking in the deep darkness.

Nightmare sensed that the core of her spirit was not in the cold seabed, so she kicked her legs and swam toward the surface.

He had barely fallen into the water when he reached the surface within a few breaths.

"Ha..." Nightmare poked her head out of the water and looked around.

In stark contrast to the pitch-black seabed, an unprecedented blizzard rose from the surface, with extreme winds raging and cold snowflakes constantly lashing his face. All around him was a vast expanse of white, with no scenery in sight.

The only thing they had in common was extreme cold.

Nightmare rose from the icy water and miraculously stood on the surface.

What kind of strange place is this?

Even the most terrifying nightmares have never seen such an extreme realm of the unconscious.

Generally speaking, the unconscious realm is what reflects a person's inner self.

Just like a warm and cheerful person, their unconscious mind is mostly warm.

And this is what Nightmare sensed from this unconscious realm.

Despair, pain, confusion, uncertainty.

If those children were allowed in, they wouldn't be able to find the core of the spirit; they would likely be completely lost in this woman's unconscious realm.

Nightmare sensed the direction of the spiritual core, found a direction, and stepped across the water.

……

Yuko followed closely behind, stepping into her own unconscious realm.

She looked around, observing with curiosity.

This is... her unconscious realm?

There's not a single warm place to be seen.

Yu Zi stepped forward, splashing ripples across the water.

She didn't know where she was going, but she felt that she was being guided.

……

Dreams are not infinitely expansive, nor is the unconscious realm.

Not long after we started walking, a strange sight appeared in the blizzard.

Nightmare was overjoyed: "Found it."

He couldn't help but quicken his pace.

That was a view that stood apart from the cold, ocean world.

It's a courtyard of moderate size, and it looks quite old, not like something from the Taisho era.

This place should be a safe haven in the dreamer's subconscious.

Something normal has finally appeared in this woman's unconscious realm.

Without giving it much thought, Nightmare pushed open the gate and walked into the courtyard.

His senses told him that the core of his spirit was in the room ahead.

Without pausing for a moment, just seconds after pushing open the front door, Nightmare pushed the front door open again.

The dilapidated room looked very realistic, even the teacups on the table were neatly arranged.

But Nightmare had no intention of observing; instead, she looked at the old man sitting in front of her with suspicion and uncertainty.

This is an old man with red spots on his forehead, unsightly wrinkles covering his cheeks, and an aged body that looks like a candle flickering in the wind, as if he will pass away at any moment.

The spiritual core that the nightmare was trying to destroy was slowly floating in mid-air behind the old man.

It was a precious jade, as white as a mirror.

Upon seeing the appearance of Nightmare, the old man slowly put down his teacup and murmured, "Has it come to my side?"

"They are intruders."

Nightmare didn't pay attention to the old man's words; the surprise and doubt in her eyes deepened.

What's wrong with this woman?

It is indeed possible for individuals with strong self-awareness to appear in the unconscious realm, but why would other people appear in the unconscious realm?

The old man slowly stood up, the long sword at his waist scraping against its sheath, producing a chilling sound.

Nightmare's pupils trembled; he was terrified of this old man who was nearing the end of his life.

What exactly is going on? !

What's wrong with this woman?!

Nightmare clenched her teeth; as a sleep demon, this was the first time she had been bewildered by the things in her dream.

"I am coming."

As the old man spoke lightly, an indescribable aura burst forth, almost crushing Nightmare's legs so much that he could not stand.

Unexplained memories flooded back.

"What do you consider life to be?"

The old man before her perfectly overlapped with the figure in her memory, and Nightmare's pupils trembled violently as fear enveloped her entire body.

His twisted mind finally understood what death and fear were.

He finally understood.

Those are Lord Muzan's memories! They are the memories of the cells!

This guy! This woman!

This is not a dream at all!

Rather, it actually happened...

The scenery before his eyes spun rapidly, and Nightmare stared at his headless body, his consciousness fading away in terror.

He didn't see anything clearly.

……

"What the hell is this place?"

Yuko braved the cold wind and snow, unable to resist complaining.

It was just a vast expanse of white; you couldn't see anything at all.

Hey!

Can you please clear the sun for her?!

Huhu~

The wind blew indifferently, completely ignoring her commands.

Yuko was furious; it was clearly her dream.

She then realized that it might be a trap set by the evil spirit to hinder her.

What a treacherous guy, no wonder he's so perverted.

Finally, after walking for a while, a familiar floral fragrance wafted into my nose.

It's wisteria.

As you walk forward, a path appears on the water's surface, covered with lush wisteria blossoms on both sides.

To be honest, although Yuko always wore a wisteria sachet, she didn't actually like the flower.

Because wisteria flowers have a special effect against ghosts, she is no exception.

She can ignore the sunlight, but she needs time to decompose the wisteria flowers.

Things she didn't like appeared in her dreams.

As soon as we stepped onto land, the wind and snow stopped abruptly, and warm sunshine poured down.

Yuko continued walking forward, and a familiar courtyard came into view.

"Isn't this the Butterfly Mansion?"

She asked why there were so many wisteria flowers.

Ikuko walked towards the house.

She had indeed spent quite a bit of time in the Butterfly House, so it's no wonder that the Butterfly House appeared in her dreams.

After coming into contact with the Demon Slayer Corps, aside from the two years she spent with Tanjiro, the place she spent the most time was the Butterfly Mansion.

Speaking of which, why did she stay at the Butterfly Mansion for so long?

A soft, gentle voice, tinged with maturity, rang out.

"Yuko, want to sunbathe together?"