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

Yuko was inexplicably fed a mouthful of dog food (a Chinese slang term for witnessing public displays of affection), and recalling the commotion she heard last night, her mood underwent a subtle change.

Don't get me wrong, nothing actually happened last night.

All she heard was the sweet talk between the two... no, even that's not quite right, they were discussing normal topics, it's just that Kagaya Ubuyashiki was too good at it.

We've been through so many years together, and I'm so grateful for her care...

Yu Zi got goosebumps when she heard that.

Yu Zi said helplessly, "Since you know that life is precious, why take this risk?"

Kagaya Ubuyashiki smiled and said, "Because no matter what, I have something I want to say to that guy."

say what?

You want to learn from Yoriichi too, so you have to have a little competition?

Ubuyashiki's words triggered unpleasant memories for Ikuko, and she blurted out instinctively, "Are you out of your mind?"

"..." Kagaya Ubuyashiki was stunned for a moment, speechless.

Luckily, one of the white huskies wasn't around, or it would have gotten all pricked up again.

Yu Zi belatedly realized that her words had gone a bit too far. She coughed and said somewhat awkwardly, "What I meant was, if there's anything you want to say to him, I can do it for you."

Kagaya Ubuyashiki quickly snapped out of his daze and calmly shook his head.

He didn't say much, but Yuko could sense the determination in his heart.

So sometimes she just doesn't understand these people.

After a moment of silence, Yu Zi sighed: "I understand. I will try my best to keep the battlefield at bay."

Kagaya Ubuyashiki smiled and said, "Thank you for your help."

Yuko couldn't help but complain, "If you know it'll be troublesome, then don't do anything reckless."

Kagaya Ubuyashiki simply smiled and remained silent.

“Since Muzan will be arriving tonight, I’ll notify the others now.” A moment later, he opened the window beside him and summoned Kasugai.

"Notify the other pillars to assemble here."

The raven wearing the purple scarf nodded slightly and said in a steady tone, "Understood."

Yu Zi broke out in a cold sweat; the sound of the raven was as oppressive as ever.

After the Kasugai Crow left, Kagaya Ubuyashiki paused for a moment, then smiled and said, "Sorry, I seem to have forgotten to have it inform Ms. Tamayo. Why don't you go yourself, Ms. Ikuko?"

"……Fine."

Tamayo's place isn't far from the Ubuyashiki residence, just a few steps away.

Yesterday, those eyeball monsters should have explored that area too, but because of her obstruction, after they trampled that eyeball monster to death, the surrounding eyeball monsters retreated one by one.

Yuko left the room. Outside, several children were playing in the yard, but it was quite quiet and not noisy at all.

"Miss Yuko."

Upon seeing her emerge, they all turned to look at her and bowed slightly.

Yuko: "...Take your time playing."

Actually, if you observe them for a while, you'll find that these kids are quite well-behaved... well, in terms of personality...

It's just a bit too wooden.

Yuko left the Ubuyashiki residence and arrived at Tamayo's house a few minutes later.

It was daytime, and the gate was tightly shut, so no one could open it for her. Yuko took off from the ground and landed in the yard, heading towards Tamayo's laboratory with practiced ease.

"Why are you here again?" When Yushiro saw her, he first frowned subconsciously, expressing his dissatisfaction and disgust.

Before Yuko could retort, Yushiro's expression changed from disdain to surprise.

"Could it be that Muzan's side has already taken action?"

The special training was in full swing, and Tamayo and Yushiro were already mentally prepared. With Muzan's abilities, it wouldn't be surprising if they were discovered at any time if he got serious.

In other words, before there was Yuuko as a catch, Muzan was timid and lacked motivation, so he only dared to let Kokushibo, who had some knowledge of the Demon Slayer Corps, search outside.

As a result, they searched for hundreds of years but couldn't find it.

Yu Zi couldn't help but feel a little puzzled. This place is so small. You've been searching for hundreds of years and you've found it by using the process of elimination, right?

Was it to hone his swordsmanship and fool his boss? In reality, he didn't care about the tasks assigned by the company at all.

After all, Kokushibo's mind was full of Yoriichi, so Muzan probably wouldn't bother looking into Kokushibo's mind all the time.

Yuko swallowed the curse that was about to escape her throat and nodded slightly: "Where's Tamayo?"

When it came to serious matters, Yushiro's expression became more serious: "Lady Tamayo is in the laboratory."

Yu Zi sighed, her expression somewhat conflicted.

Yushiro was wondering what her expression meant when he heard Yuko put her hand to her forehead and say, unable to bear it any longer, "You're still using honorifics, so after hundreds of years you're still just having unrequited love."

Yushiro paused for a moment, somewhat caught off guard by Yuko's digression.

After realizing what had happened, his face first turned red, and then the veins on his forehead bulged.

"you……"

Yuko ignored him and turned to head towards the laboratory.

Yushiro angrily followed after him.

Upon arriving at Tamayo's laboratory, Tamayo was sitting at the lab table, fiddling with something.

Yuko asked curiously, "Did you know I was coming?"

Hearing the voice, Tamayo looked up in confusion: "Hmm? Yuuko, when did you get here?"

Yuko: "Just now..."

Why didn't you knock?

Ikuko: "..."

Yushiro followed behind, saying, "Excuse me, Miss Tamayo... this rude fellow."

He glared fiercely at Yuko, his expression fierce, but he was deliberately avoiding Tamayo's gaze. In reality, he looked quite conflicted and struggling.

Yu Zi recognized his form of address but wasn't angry; instead, she secretly gave him an appreciative look.

Although this title still carries a sense of respect, it is at least better than "sir"; it is just a polite way of addressing someone of equal rank.

It's the same reason why others call her that.

Yushiro lowered his head somewhat guiltily.

Tamayo, who had spent hundreds of years with Yushiro, subconsciously overlooked the change in address.

Tamayo shook her head and looked at Ikuko: "It's okay, what did Ikuko mean just now?"

Noticing that Tamayo didn't seem to care, Yushiro breathed a sigh of relief, his heart racing slightly.

he made it!

he made it!

"Oh, weren't you working on a potion to weaken Muzan?"

Tamayo looked down at the potion in her hand, then looked at her speechlessly: "Speaking of which, you didn't throw away the potion I made, did you?"

"What?" Yuko was stunned for a moment before she remembered that she had taken the potion that weakened Muzan earlier.

Yuko broke out in a cold sweat.

Where did she put it again?

Why can't I remember?

She's only a little over four hundred years old, how could she have developed Alzheimer's disease?

This is unscientific.

Her room in the Butterfly House was spotless, with nothing but a bed and no decorations.

A bead of sweat rolled down Tamayo's forehead: "You haven't forgotten, have you?"

Yuko: "Let me think about it."

She was genuinely panicking. If she couldn't find it, wouldn't she be facing a complete Muzan?