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

The night was hazy, and the chirping of insects echoed through the mountains. Occasionally, a gentle breeze would blow, stirring the heart.

Under the bright crescent moon, two figures faced each other.

Yoriichi, holding an ordinary iron blade, calmly looked at the person in front of him: "Let's test your current strength first."

Yu Zi nodded slightly: "Yes, I'm also very curious about the difference between myself and my brother."

As soon as she finished speaking, Yu Zi slowly drew a long, bloody knife from her palm.

He casually flicked his sword, then brushed away the bloodstains.

The silver-white blade radiated a sacred glow under the moonlight.

However, the slightly eerie aura emanating from its blade constantly tells others that this is a demon's blade.

This long sword is similar in style to the Nichirin sword that Yuko used before, except that the characteristics of the blade are slightly different.

What's most special is the blade; the pure white blade is almost flawless, without even a single blemish, and is as flawless as a mirror.

In terms of hardness alone, the Demon Blade, born from Yuuko's flesh and blood, far surpasses ordinary iron blades.

Only the Nichirin Blade can cut it.

However, the prerequisite for the Nichirin Blade to cut it off is that the opponent must be a strong person capable of severing her neck.

Yu Zi slowly assumed a starting stance, exhaling a faint white breath: "Brother, please do not hesitate, just go all out."

Yoriichi did not use a Nichirin Blade, but a simple iron blade, which could not cause any real damage to the demons.

Even if the other person is Yoriichi, it won't work.

Even a skilled cook can't cook without rice; even Yoriichi couldn't kill a demon with an iron blade.

Of course, the regeneration of evil spirits is not infinite. Each regeneration consumes energy, which needs to be replenished by eating. If too much energy is consumed, the regeneration speed will slow down.

If a demon were to encounter Yoriichi, who was carrying an ordinary katana, there would likely only be two possible outcomes.

First, I was so badly attacked by Yoriichi that I questioned my existence, and then it was dawn.

Second, being cut by Yoriichi directly caused him to lose his regenerative ability.

But no matter what, even Yoriichi couldn't inflict effective damage on her in a short time, given that she was wielding an iron blade.

Most importantly, one cannot wield a crimson blade with an iron blade.

The reason why Nichirin Blade can form a crimson blade by relying on grip strength is because of the special raw materials of Nichirin Blade itself. The crimson iron sand and crimson ore used in it grow on the highest mountain closest to the sun, absorbing a lot of sunlight and possessing the energy of the sun.

The principle behind the Crimson Blade is to stimulate the energy of the sun within the Nichirin Blade through grip strength.

Yoriichi understood the reasoning behind it, and therefore nodded slightly.

"Well, here I come."

Yuko took a deep breath, and a clear world unfolded before her eyes.

"Snow Breathing - Seventh Form - Snow - A Line of Sky!"

A flash of extremely fast white light streaked past, like a thin silver thread being drawn in mid-air, exquisitely beautiful.

Observe his breathing, muscle movements, and his next move.

Yuko stared intently at Yoriichi's body.

In Yuko's opinion, the Transparent World is the most valuable of the three pieces.

Even in other anime, the ability to see through the human body wouldn't be too bad.

Knowing the gap between herself and Yoriichi, Yuuko did not hold back at all and attacked with all her might.

The snow-white blade hurtled straight toward Yoriichi's neck.

This was a habit she developed while hunting demons; even after becoming a demon herself, and her enemies were humans, she couldn't help but think about beheading them.

The white silk thread drew a beautiful curve in mid-air; this was Yoriichi's first experience of the ultimate snow breathing technique.

Since Yuko was injured, Snow Breathing has been basically lost, as no one can learn it, and its difficulty is no less than that of Sun Breathing.

Yoriichi had only seen it occasionally when Ikuko was secretly practicing, but it couldn't compare to what he's doing now.

Beautiful breathing technique, beautiful sword shape.

But it was not merely beautiful; the sharp killing intent within it almost stung Yoriichi's skin.

It was as cold and piercing as ice and snow.

This is the Breath of Snow.

A snow-white thread brushed across Yoriichi's neck, and his blurry figure passed by.

After one blow.

Yuko stared in astonishment at her headless back, wielding the Demon Blade.

Before her head hit the ground, Yoriichi reached out and gently scooped it up, then softly placed it back on her body.

The whole process looked a little strange.

Yu Zi opened her mouth, then said expressionlessly, "...That's a bit of a blow to me."

Even though I knew I would be tortured, it still hurt when I actually was.

Yoriichi: "..."

It was clearly someone who insisted on being taught.

Yoriichi asked, somewhat unwell, "Are you alright?"

Although it cannot cause any real harm, the pain of beheading is still unavoidable.

If Yuko hadn't repeatedly pleaded with him, he definitely wouldn't have been able to do it.

Yu Zi looked up at him and said dejectedly, "It was too fast, I didn't feel any pain at all."

Yoriichi smiled: "That's good."

Yuko pouted.

It's not good at all.

She would be happier if she could feel the pain, because the difference wouldn't be that big.

The fact that they didn't even know they were being beheaded only proves that there is a dimensional gap between them.

Yoriichi: "Want to come again?"

Yuko took a deep breath: "Come on, this time I'm going to get serious."

Yoriichi nodded slightly, and the two returned to their respective places.

Yuko held the snow-white demon blade, her wine-red eyes slightly closed, and gently exhaled a long breath.

The next moment, she suddenly opened her eyes, and golden outlines mixed with some deep darkness appeared in her eyes. Slightly ferocious veins appeared around the corners of her eyes, and a pair of demon horns that looked like dragon horns emerged from the top of her head. Her black fingernails also grew a little longer.

Her originally wine-red hair visibly turned snow-white.

Seeing Yuko's appearance, Yoriichi couldn't help but be slightly lost in thought, as he shared the same viewpoint as Yuko.

That doesn't quite look like it.

It doesn't look like an ugly ghost; it looks more like a deity.

The silvery moonlight slanted down through the branches of the dense forest, gently falling on Yuko's snow-white hair, as if draped with a thin silver veil.

With her snow-white long hair and the pair of demonic horns on her head that resembled dragon horns, anyone who passed by and saw this scene would never mistake her for an evil spirit.

Yuko quietly sensed her body's condition. Strictly speaking, this was the first time she had fully transformed into a demon. Before, at the inn, she had been somewhat distracted because she was worried about someone coming in.

In this state, his physical abilities after becoming a demon were significantly enhanced.

It was almost several times more than her power during her human years, and she knew very well that this ability could continue to improve. Since becoming a demon, she had never eaten a human. If she had...

Yuko quickly shook her head; these damned Muzan cells were actually starting to affect her mind.