After handing the White-Haired Demon over to Tamayo, Musashi left the basement.
As soon as he came out, he ran into Kochou Shinobu, who was walking towards him.
Musashi was not surprised by this; when Kagaya said he would send a Hashira to assist Tamayo, he had already guessed it would be Kochou Shinobu.
At the time, he was slightly worried whether Kochou Shinobu could accept Tamayo and the others.
However, after remembering that she could easily accept Nezuko, he wasn't so worried anymore.
At that time, apart from him and Giyuu, Kochou Shinobu and Mitsuri had no intention of executing Nezuko and Tanjirou, and Kochou Shinobu even gave Tanjirou medicine.
Although Musashi was not surprised to see Kochou Shinobu, Kochou Shinobu was genuinely surprised to see Musashi.
"Musashi? Why are you here? Do you know..." Kochou Shinobu asked, puzzled and surprised.
Musashi nodded at her words.
"I met them on a mission.
At that time, I caused quite a stir among the crowd because of demon hunting, and Ms. Tamayo helped me out.
But I didn't trust them directly at the time.
I even almost killed the two of them because Yushiro showed murderous intent towards me.
However, after learning that their enemy was also Muzan, I let them go and even got a lot of useful information from them.
Master Kagaya also knows about this.
Because Ms. Tamayo has a deep understanding of Muzan, he asked me to write a letter some time ago inviting Ms. Tamayo to cooperate and jointly discuss a plan to deal with Muzan." Musashi briefly explained to Kochou Shinobu.
Recalling this experience, Musashi still felt some emotion.
If he had ignored everything and directly killed Tamayo and the others at that time, he might not have learned so much about Sun Breathing, Yoriichi, and Muzan.
Kochou Shinobu understood after hearing his words.
Looking at Musashi, she smiled and said, "I see, then I'll go ahead."
With that, Kochou Shinobu walked towards the basement not far ahead.
"Oh, okay," Musashi replied.
Looking back at Kochou Shinobu, Musashi vaguely felt that her emotions seemed a bit off.
Musashi's feeling was indeed correct.
Kochou Shinobu was indeed harboring anger in her heart right now.
She was not as capable of easily accepting demons as she appeared.
Even though she always said it would be great if humans and demons could coexist peacefully, her inner resentment towards demons was no less than Sanemi's and Obanai's.
It was just that she had hidden it.
This was also the case when facing Tamayo and Yushiro.
When she received Kagaya's instruction for her to research with Tamayo, she could not hide her anger.
After returning to Butterfly Mansion, she sat in front of her sister Kanae's memorial tablet to calm down.
During the subsequent research, although she showed nothing on the surface, she constantly hated Tamayo and Yushiro, who were demons.
Musashi did not know these things.
He just felt that Kochou Shinobu's emotions were not right; although she was smiling as usual, it was as if she was angry.
However, Musashi didn't have time to pay attention to these matters now.
He had other things to do.
Crow was still hanging on him; he couldn't just keep it like that.
After leaving Tamayo's place, Musashi immediately returned to the Demon Slayer Corps Headquarters and arrived at the Ubuyashiki Estate.
Kagaya's physical condition had worsened.
Musashi first told Kagaya about the White-Haired Demon, hoping it would make him feel a little better.
"So, the eradication of Muzan is already within reach.
Master Kagaya must take good care of himself to witness that day."
This time, when Musashi said such words, he felt it was no longer as hollow as before, because this time he had a concrete reason for Kagaya to take care of himself.
Kagaya's mood became excited after hearing Musashi's words.
He saw the hope of eliminating Muzan.
"Good... good... you've done an excellent job, Musashi... your decision was very correct... this way... if Ms. Tamayo can successfully extract the Blood Demon Art of that demon... then we will be able to find Muzan and launch the final decisive battle... even if it cannot be successfully extracted... we can also let Genya acquire that demon's Blood Demon Art by eating the demon...
However, according to what Ms. Tamayo said... just finding Muzan with this is not enough... we also need to find a way to pull him out of his unique space... you must cooperate well with Ms. Tamayo and strive to find the method as soon as possible..."
Kagaya spoke intermittently, his voice barely concealing his excitement, no longer his usual calm.
"Thank you for everything you've done... Musashi... I will take good care of myself as you said... and witness it with my own eyes... *cough cough!* *cough!*"
As Kagaya spoke, he suddenly coughed violently, blood flowing from the corner of his mouth.
He struggled to turn his body, and large puddles of blood splattered on the floor.
"Master Kagaya!"
"My husband!"
Musashi's heart tightened in alarm, and he quickly stepped forward to support Kagaya's body.
Amane also hurried to take out a handkerchief and wipe the blood from Kagaya.
"I'll call a doctor!" Musashi said to Amane.
"Please do," Amane replied, supporting Kagaya, and Musashi stood up and left.
Soon after, the doctor who treated Kagaya arrived and began to diagnose him.
Musashi and Amane watched anxiously from the side.
After some treatment, the doctor stood up and shook his head.
"Alas, it's as I said before, his illness is incurable.
I just tried to delay his symptoms using the old methods, but the effect was minimal.
I think... you might want to make preparations early."
The doctor's words made Musashi's heart sink.
Although Kagaya had said this before, hearing the doctor's diagnosis firsthand today deepened Musashi's sadness and heaviness.
"Thank you," Amane did not directly answer the doctor's words, but simply thanked him.
Then the doctor left the mansion, and Kagaya fell into a coma.
"Lady Amane, what exactly is Master Kagaya's illness, and why is it so severe?"
Musashi had always been somewhat confused about this matter, so he took the opportunity to ask now.
"This matter... you should ask my husband later..."
Amane did not tell Musashi.
This matter was considered a disgrace to the Ubuyashiki family, and without Kagaya's authorization, she could not speak casually.
"I understand."
Musashi no longer asked further upon hearing this.
Then Musashi fell into hesitation.
The other matter he came for this time had not yet been explained to Kagaya.
He now didn't know whether he should tell Amane.
If he concealed it, he might still achieve his goal, but Musashi felt he should still inform Kagaya.
"Lady Amane, I have another matter to tell Master Kagaya this time.
Could you relay it to him after he wakes up?"
Musashi finally chose to speak out.
"Okay, tell me.
I will relay it to my husband after he wakes up," Amane said, nodding at his words.