Found it.
The medicine box was placed in the corner. Since it was made from Mizuki's blood, there was no need to worry about it spoiling if left at room temperature on a hot day.
Mizuki opened it, confirmed everything was fine, and then left with the medicine box.
The Butterfly Mansion had been relatively peaceful these days. Aside from swordsmen who 'accidentally' got injured during special training and came in for simple external wounds, there was no need to worry about being overwhelmed in the short term due to the disappearance of demons.
Mizuki hadn't seen Yae and had originally planned to say hello to her.
On her way from the Butterfly Mansion back to the Ubuyashiki Mansion, Mizuki met Nezuko, who was returning to the Butterfly Mansion.
The special training was over, and her job as a cook was also finished.
Hmm, she was probably unemployed.
Since Tanjirou had to attend a meeting, he let Nezuko return to the Butterfly Mansion alone.
Mizuki quickly figured it out.
Seeing Mizuki, Nezuko happily ran a few steps forward: "Yuko-san, why are you here?"
"I came back to the Butterfly Mansion to get something." Mizuki shook the medicine box in her hand and instructed, "Remember not to run around tonight."
Muzan probably wouldn't choose their side as the battlefield. Anyone would choose a familiar place for their stronghold.
Once the battle began, Muzan would definitely try to pull them into that alternate dimension.
Even if some demons remained to attack the Demon Slayer Corps, the other swordsmen left behind could handle them. She hadn't treated Ubuyashiki Kagaya's curse just so he could flirt with his wife.
As long as she and the Hashira could stop Muzan and the Twelve Demon Moons, with Ubuyashiki's guidance, ordinary demons wouldn't become a major threat.
Theoretically, it was relatively safe outside, and Nezuko would be fine staying at the Butterfly Mansion.
"Okay." Nezuko nodded seriously, then hesitated and said, "Yuko-san, please be careful."
Mizuki smiled in response: "I know."
The courtyard was already filled with people.
Including the Stone Hashira, Himejima Gyomei, all the Hashira were present.
No, not just the Hashira.
There were also Kanao, Zenitsu, and Inosuke, who had already awakened their Demon Slayer Mark... Wait, where was Genya?
Oh, that guy hadn't awakened his Demon Slayer Mark.
Everyone present here was capable of fighting the Twelve Demon Moons head-on.
That is, the awakeners of the Demon Slayer Mark.
Uzui Tengen boastfully flicked his head, then brought his two fingers together, wiped his forehead, and waved at her: "Yo, you're back."
Mizuki:...What a lunatic.
The others all greeted her to varying degrees, even Shinazugawa and Iguro Obanai, who had previously disliked her, gave her a slight nod in response.
To get these two to be nice to her, Ubuyashiki Kagaya must have given them some kind of love potion. Just by helping to weaken Ubuyashiki's curse, these two had completely changed their attitude towards her.
Mizuki went straight to the group of girls.
Kanroji Mitsuri was already rushing towards her impatiently.
"Mizuki~"
Mizuki slapped her face, expressionlessly pushing her away.
She hated it when people moved around on her.
This action made Iguro Obanai's eyelid twitch.
Kanroji Mitsuri rubbed her nose resentfully: "You're so heartless. Little Shinobu hugs you and you never refuse."
"Eh?" Kochou Shinobu, who had been secretly smiling, was inexplicably hit and let out a surprised cry, her ears turning a little red.
Himejima Gyomei, with hands clasped: A strange feeling, like he could smell lilies... Mizuki coughed twice, ignoring her.
Looking at the people standing in the courtyard, Ubuyashiki Kagaya inside the house sighed with emotion: "Muzan, a conclusion is about to be reached..."
Ubuyashiki Kagaya truly believed that this group of people could defeat Muzan.
These swordsmen possessed immense talent, diligence, and unwavering resolve.
Kibutsuji Muzan, this is all your own doing.
Now they are coming to take their revenge on you.
Ubuyashiki Kagaya led his wife and daughters out of the room.
"Good afternoon, everyone."
His gentle voice seemed to calm restless hearts, and the slightly noisy courtyard instantly quieted down.
However, in Mizuki's opinion, it was more like a homeroom teacher inspecting their class.
"Master!"
Everyone knelt on one knee in unison, except for Mizuki, who was not involved.
This time, before Tanjirou could react, Shinazugawa, who was next to him, casually pressed him down.
Mizuki:...
Sometimes, this situation made her very uncomfortable, giving her a feeling of being out of place with this world, with this era.
Ubuyashiki Kagaya smiled: "This might be the last Hashira Meeting."
The Hashira Meetings, usually held biannually, had been convened countless times this year.
It signified that their struggle with Muzan was finally coming to an end.
"Tonight, perhaps, will be the night of the decisive battle."
Upon hearing this, everyone's expressions involuntarily grew more serious.
Everyone standing here, except for Kanroji Mitsuri, had a deep-seated hatred for Muzan; they were all people whose families had died because of Muzan.
Generations of Demon Slayer Corps swordsmen had passed away with regrets. Now, this opportunity was in their hands, and they had to seriously consider if this was their only chance in this lifetime.
To slay Muzan... This firm belief surged within them, and everyone's Aura became heavy.
Feeling the change in everyone's Aura, Ubuyashiki Kagaya's smile deepened.
"I know you are eager to confront Muzan, but... the person chosen to lead the charge tonight must still be Young Miss Mizuki."
"Muzan has long overcome the weakness of his neck. To slay him, we must rely on the power of the sun, dragging him out until dawn."
"And Kibutsuji Muzan's ability to split needs to be addressed in advance. There is no one else for this role except Young Miss Mizuki."
Ubuyashiki Kagaya had originally planned to use his own life to buy time for everyone.
He intended to bury gunpowder and Phillips nail, cross-shaped nails made from Nichirin Blade Ore that could effectively suppress regeneration and enhance destructive power, under the house, waiting for Muzan to arrive before blowing him up.
An explosion of that magnitude, even Muzan couldn't instantly recover from. Using this time to inject the demon-restricting medicine would be the best opportunity.
Trading his worthless life for an opportunity would be the most cost-effective solution.
However, Mizuki scolded him.
Sanemi Shinazugawa opened his mouth but couldn't speak.
This person had to have the ability to restrain Muzan. And in Mizuki's judgment, if they were to fight Muzan at full strength without even having opened the Transparent World, they might be instantly killed.
Although Sanemi Shinazugawa had clashed with Mizuki before, her words were trustworthy.
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