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

Yuko really didn't expect that there could be such a talented person in the Demon Slayer Corps.

It's amazing that she could guess that she would be in charge of protecting Kagaya Ubuyashiki at this crucial moment.

What she didn't expect was that she could say it so sweetly, and that Muzan Kibutsuji would find out about it.

But actually, the problem is no longer a big one. The activation of the Demon Slayer Mark is already complete, and Tanjiro, as the protagonist, has already activated the Transparent Domain. The Crimson Blade should be ready soon as well.

What? It's difficult for Tanjiro's physique to activate the Crimson Blade?

That's the main character.

Although Yuko didn't know exactly how he could activate the Crimson Blade, she figured it would activate naturally when faced with a desperate situation.

The problem is not big.

When Yuko arrived at the Ubuyashiki residence, the person responsible for temporarily protecting the area was someone she had never expected.

"Miss Yae?" Yuko was stunned when she saw the person.

"Ah, it's Miss Yuko." Yae turned her head instinctively upon hearing the familiar voice, and a happy smile immediately spread across her face.

"haven't seen you for a long time."

Yu Zimu nodded: "Yeah, long time no see..."

Weird!

Yuko couldn't help but ask, "Didn't you go back?"

I remember that before, she had gone to send her father, who had turned back into a human, home.

Yae scratched her head: "Yes, but I owe you and the Demon Slayer Corps a debt of gratitude, so of course I have to come back."

Yuko was speechless; it really was...

“My father has to stay on the mountain to atone for the harm he caused.” As he said this, Yae’s eyes dimmed a little.

Even when one is not fully conscious, that still harms others.

Therefore, she could understand her father's feelings.

After rescuing his father, he rarely smiled, and his face always carried a heavy expression.

Only when facing her or outsiders would she force out a smile that looked very strained.

Actually, the father might not have wanted to be saved.

Being beheaded as a man-eating demon might be better than living and suffering inner torment.

Yae took a deep breath, shaking off the unhappy thoughts in her mind, and said:

"I knew as soon as I got back that everyone was preparing for the final battle against that monster."

"Although I am far from being able to fight on the battlefield, I hope to help everyone in any way I can."

Although Yae was taking care of her father while learning breathing techniques, she had no mentor to teach her and could only learn on her own. She also did not have the talent of Tokito.

After such a long period of learning, it's probably only at... Namiko's level when Ikuko first met her.

If dealing with a newly transformed demon from an ordinary person, if one can overcome their inner fear, they can probably use that crude breathing technique to behead it.

But if you encounter someone a little more formidable, you can't just force them to pay.

Kagaya Ubuyashiki had someone teach her the ability to master breathing techniques, not because he hoped she would join the Demon Slayer Corps, but to prevent her from being accidentally injured by her father.

At least they have the ability to protect themselves.

"I see..." Yuko didn't know what else to say, but she said, "Leave this to me, Yae, go report to the Butterfly Mansion?"

"They actually need more manpower over there."

This place will soon be discovered by Muzan Kibutsuji, and there will be a confrontation.

Yuko didn't want anything to happen to her.

Yae said with difficulty, "But I have no medical or nursing training."

"Can you help treat the injuries?"

"Hmm." After all, she was a hunter and often got injured in the mountains, so she knew the basics of treating wounds.

"Then it's alright, go ahead, just say I sent you."

Yae: "..."

And just like that, Yae left in a daze.

Yuko strode into the Ubuyashiki mansion. In the courtyard, two exquisitely beautiful children, as delicate as dolls, were playing with a ball.

To be somewhat disrespectful, compared to Muzan, Ubuyashiki's children were actually more creepy to her.

It felt like I was in a horror story.

"Miss Yuko." The two bowed respectfully. "Father is resting inside."

"Well, I see."

Yuko didn't intend to disturb them and strolled around the mansion.

Ubuyashiki's residence is actually not very large, as the need for privacy has led to its only decent size.

In front of the room in the Ubuyashiki residence is a courtyard, which is very nicely decorated and has a sense of tranquility.

After wandering around for a while, night gradually fell, and the sky seemed to open a huge, dark maw that devoured the sunlight bit by bit.

"Miss Yuko, your father has arranged accommodations for you."

Hearing the sound behind her, Yuko turned around and saw the last ray of sunlight shining on the faces of the two dolls.

It fades away little by little.

Yuko lowered her eyelids slightly: "Yes, thank you for your help."

Led by two doll-like children, she arrived at the room prepared for her by the Ubuyashiki, which was right next to the Ubuyashiki.

The room's decorations are vaguely visible, and they are the kind of decorations that children would like.

Is this where these children live?

The space was given to her because of safety concerns.

……

Yuko lay expressionless on the bed, flanked by two expressionless doll children staring straight at her.

The white-haired man next to her on the left, whose name she didn't know, explained, "To make it easier for you to protect us, Father didn't prepare rooms for us. He let us rest next to Miss Yuko."

Taking care of children... isn't necessarily a bad thing.

but……

It's a little scary.

Yuko looked around and saw pairs of emotionless eyes staring straight at her.

"I am Rika, the second daughter," the white-haired man next to her on the left said, seemingly taking it as an introduction.

“I am Hina, the eldest daughter.”

"I am Beyond".

"I am Hang Nai."

“Kiriya is the eldest son.”

Even if I told her, she still wouldn't be able to tell the difference!

All she knew was that the black-haired boy was a boy; she couldn't tell the others apart!

Yuko couldn't help but speak up: "It's so late, aren't you guys going to rest?"

What she really cares about is that you guys stop staring at her!

Yuko thought her gaze was already terrifying, but compared to these children, it was nothing.

Upon hearing this, the five children lay back down like dolls, closed their eyes, and soon their breathing became even.

Yuko: Isn't that even scarier?!

That damned Ubuyashiki! You let her take care of your kids while you and your wife are happily having fun next door, huh?

Yu Zi sighed. Honestly, she couldn't tell which side was the bad guy for the moment.

If Muzan and these children stood in front of her, she would definitely side with Muzan.

Yuko stared calmly at the ceiling, her senses quietly spreading out.