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

Upon hearing Kokushibo's words, Muzan's eyes narrowed slightly, and long-forgotten memories resurfaced.

To be honest, he did know that Kokushibo had a younger sister.

Kokushibo even asked himself for blood for her.

Because she was that monster's sister, Kokushibo's sister, he also gifted her a considerable amount of health.

However, it seems that he was too weak after the transformation and was killed by the Demon Slayer Corps in time.

He felt a pang of regret at the time, thinking that the monster's sister must possess talent no less than that of Kokushibo.

Kokushibo's voice was low and deep: "No... I can't be wrong."

Muzan was losing his composure, veins bulging on his forehead: "Are you saying that someone has broken free from my control?"

That's impossible.

He had seen that woman with his own eyes and even had contact with her.

There was only a very faint demonic aura about him, which is very common among demon hunters... He couldn't possibly be a demon.

If that were the case, it would be impossible for him not to sense it.

Muzan pondered to himself, when suddenly the image of a woman flashed through his mind.

Tamayo?!

Muzan's pupils trembled slightly. Could it be that woman?

The visuals transmitted back from the minds of those two good-for-nothings showed that the two women did indeed make contact, but he didn't pay much attention to it at the time, as all his attention was drawn to the swordsman who practiced the Breath of the Sun.

As a result, several Lower Moon demons were exposed to the Demon Slayer Corps and were killed.

Doma scratched his head: "Hey, I don't understand what you're saying?"

Why are you so busy sulking?

All the ghosts: Brave!

They hadn't felt this atmosphere in a long time; as expected of Lord Doma.

Muzan ignored Doma's audacity and said in a low voice, "Are you sure?"

"Yes."

Without a doubt, that face...that mark...

He could never forget.

Moreover, given Yuko's condition at the time, it was impossible for her to leave any descendants.

As for Yoriichi's descendants... that's unlikely...

Let's not even mention that they had already destroyed everything related to the Breath of the Sun.

He actually knew about Yoriichi and his wife Shi much earlier than Yuuko; they had talked about it long before they reunited.

Yoriichi will never marry again.

Even if we assume that Yoriichi did leave behind a descendant, it's impossible for her to look exactly like Ikuko.

That face, that expression, were exactly the same as the one deep in his memory.

Muzan's face twitched violently twice, and his teeth ground together with a grinding sound.

There are even demons who, like Tamayo, have broken free from his control?!

He had assumed the two people were siblings, master and disciple, or descendants of that monster.

Unexpectedly, it turned out to be that monster's sister...

It has survived for hundreds of years.

No wonder they were able to kill Akaza; this family's talents are all abnormal.

Fortunately... that woman doesn't use that monster's breathing technique.

At this moment, all the ghosts were completely bewildered as they watched their boss lose his temper, some kneeling to the side trembling with fear.

What is going on?

At this moment, Douma approached with a smile: "Hey, Lord Kokushibo, is there anything I can do to help?"

The ghosts: He is incredibly brave.

Kokushibo completely ignored his feelings; his mind was in turmoil.

Yuko is still alive...

Why don't you come and find him?

Do you still hate him?

But she was about to die...

Muzan snapped out of his daze at Doma's voice, and his slightly ferocious expression softened a little.

After a moment's thought, he gave away his own blood.

"Report this to me immediately if you see this woman."

If she really is that monster's sister, these guys are no match for her; perhaps only Kokushibo himself will be able to take action.

After the ghosts drank the blood, they finally understood why their two elder brothers had such interesting expressions.

What the hell!

I'm not watching anymore!

What the hell? !

Get out of his head!

As that face appeared in the minds of the ghosts, an even more ancient figure, originating from the depths of their cells, gradually emerged.

Unlike the others, a smile suddenly appeared on Doma's face.

"Huh? This woman, I feel like I've seen her before."

Muzan turned his eyes: "Have we met before?"

With a smile on his face, Douma said, "It was probably a hundred or two hundred years ago when she came to the sect."

He remembered it very clearly; it was rare to see a ghost hunter who got along well with a ghost. He felt that the woman and he got along very well.

"It's a pity she got away; I really regret not being able to eat there..."

His voice stopped abruptly.

"One hundred years? Two hundred years?" Muzan's voice grew even deeper, an inexplicable aura pressing down on everyone. "Then why didn't you report it to me?"

Apart from Kokushibo, all the demons were forced to prostrate themselves on the ground by this overwhelming aura.

The first to be hit, Doma's pupils contracted sharply, and his mind trembled.

Rather than being intimidating in terms of sheer force, it was more like a fear that came from the cellular level, completely ignoring his own emotional center.

He's angry, Muzan-sama.

Although he didn't show anger on his face at first, Doma knew that Muzan was very angry.

Realizing he might have gotten into trouble, Douma quickly explained, "That woman was wearing a mask and was completely covered up..."

Muzan Kibutsuji was indeed very angry.

It wasn't just because Akaza died, but also because of the face Akaza saw before he died.

Unlike ordinary trash demons, Muzan usually pays close attention to the movements of the Twelve Demon Moons.

When Enmu and Akaza's positions overlapped, Muzan noticed their location.

Muzan's control over demons weakens the further away they are, especially when he is targeting them. However, Akaza was not far away at the time, and he had more blood in the Upper Moon demon's body.

So the moment he switched to Akaza's perspective, he clearly saw the woman's appearance.

To be honest, his heart skipped a beat at that moment.

That face looked exactly like the monster from hundreds of years ago.

When the Sun Breathing swordsman wearing sun earrings and the woman who looked exactly like that monster came together, Muzan was completely unable to think rationally.

Therefore, he chose to let Kokushibo resolve the matter swiftly and decisively.

Suppressing Doma's anger, Muzan turned to look at Kokushibo.

"Kuroshibo, you know what to do, right?"

Faced with Muzan's order, Kokushibo was momentarily dazed for the first time in hundreds of years, but after a moment, he respectfully lowered his head.

"As ordered."