Fox Demon: Heaven rewards diligence; I will eventually achieve divine mastery of martial arts.

Such exciting news naturally had to be shared with the entire Demon Slayer Corps.

What excited him most was that this was only what Kamado Tanjiro, as his apprentice, had done; he dared not imagine how strong Lin Yu, as his master, must be.

It was one thing to speculate at the time, but now that I have made a comparison, I am naturally even more excited.

"My lord, you seem quite agitated. Are you alright?"

Seeing Kagaya Ubuyashiki's expression, Shinobu Kocho immediately expressed her concern.

"It's alright. Kamado Tanjiro has already cured my curse. He also worked with me to devise a plan to completely eradicate the demons. Recently, you can treat anything Tanjiro says as an order from me."

Kagaya Ubuyashiki waved his hand.

After several days of recuperation, he has never felt so physically fit.

His body became as light as a feather, his arms became strong, and most importantly, his mind became clearer.

And all of this is thanks to Tanjiro Kamado; if it weren't for him, his condition might be much worse now.

"Tanjiro, have you cured your illness?"

Before Tengen Uzui could recover from the shock of Tanjiro Kamado single-handedly defeating an Upper Moon demon, he heard yet another shocking piece of news.

His mouth gaped slightly; overwhelmed by the double shock, he felt as if his brain couldn't process what he was seeing.

Not only does he possess such formidable strength, but he is also able to miraculously cure the curse that the Ubuyashiki family has been unable to cure for centuries.

What is this guy hiding?

Shinobu Kocho was also moved. As a physician, she had naturally examined Kagaya Ubuyashiki's illness, but she couldn't find the cause. At this moment, she finally put aside her resentment over Tanjiro Kamado cutting her blade and asked:

"Tanjiro, can you tell me how you healed my master?"

Tanjiro Kamado shook his head and said:

"I cannot disclose that information."

Since this matter involved Lin Yu, he naturally couldn't say a word.

Shinobu Kocho remained silent. She was still somewhat angry that Tanjiro Kamado rejected her so readily, but she felt that if she could find out how Kagaya Ubuyashiki's illness was resolved, it might be possible to increase the toxicity of her specially made poison against demons.

After all, she always believed that the hidden cause of the Ubuyashiki family's illness lay in their blood.

This blood originated from Muzan Kibutsuji, and the fact that Tanjiro Kamado was able to resolve the blood problem naturally means that his solution can eliminate the potential dangers associated with the blood.

Therefore, she believes that Tanjiro Kamado's method is worth considering.

So she suppressed her anger and prepared to continue asking questions, but Kagaya Ubuyashiki saw through what Shinobu Kocho was thinking.

Kagaya Ubuyashiki naturally knew that the illness was cured by Tanjiro Kamado, but Tanjiro Kamado certainly couldn't explain why.

Shinobu Kocho couldn't get anywhere, and Tanjiro Kamado was also in a dilemma, so he took the initiative to speak up and defuse the situation:

"Alright, Shinobu, Tanjiro has his reasons for not being able to talk about it, and he asked me to keep it a secret. You don't need to pursue this any further."

Once Kagaya Ubuyashiki opened his mouth, Shinobu Kocho, no matter how unwilling she was, had no choice but to shut up.

"Alright, next, I will arrange for the news of Upper Moon Six's death to be spread. The rest of you can leave first. Tanjiro and I have some things to discuss."

Kagaya Ubuyashiki, having figured out the details of the entire operation in the entertainment district, then told the others to leave.

Previously, Lin Yu had not revealed the entire mission of capturing Muzan Kibutsuji, but only told Kagaya Ubuyashiki and Tanjiro Kamado that going to the entertainment district was part of the plan.

Unexpectedly, Tanjiro Kamado gave him such a big surprise.

Kagaya Ubuyashiki suppressed his surprise upon realizing this, and at the same time, everyone else in the room left.

Only Kagaya Ubuyashiki and Tanjiro Kamado remained in the room.

"Tanjiro, does your master have any new plans?"

Ubuyashiki Kagaya asked gently.

"Have."

Tanjiro Kamado nodded.

Upon returning to the Demon Slayer Corps headquarters, Lin Yu had already told Tanjiro Kamado the second part of the plan, instructing him to cooperate with Kagaya Ubuyashiki upon his return.

"Oh? I wonder what the plan is?"

Kagaya Ubuyashiki felt a surge of excitement.

For three hundred years, the curse of the Ubuyashiki family has lasted for three hundred years. Now that there is finally a chance to break it, how could he not be excited?

Tanjiro, the dream-maker, then obediently began to relay what Lin Yu had told him earlier.

"The killing of Upper Moon Six was the first part of the whole plan, called 'beating the grass to scare the snake,' in order to make Muzan Kibutsuji feel a sense of urgency."

"Oh? Doesn't Muzan Kibutsuji have an infinite lifespan? Why does he feel a sense of urgency?"

Kagaya Ubuyashiki couldn't help but feel a little curious.

Their Demon Slayer Corps has very few records of Muzan Kibutsuji.

Even his name was given to him by Lin Yu beforehand, so he was curious about why Muzan Kibutsuji, who had an infinite lifespan, felt a sense of urgency.

"Because Muzan Kibutsuji was obsessed with modifying the defect in his bloodline that prevented him from being exposed to sunlight, the physician who once treated him left behind a medical prescription..."

Tanjiro Kamado, unhurried and meticulous, recounted the entire backstory of Muzan Kibutsuji.

Kagaya Ubuyashiki became increasingly alarmed as he listened, and the more he listened, the more unfathomable Lin Yu seemed.

They even knew information that Muzan Kibutsuji could consider top secret.

After a long while, Tanjiro Kamado finished speaking, and Kagaya Ubuyashiki couldn't help but seem thoughtful.

From Tanjiro Kamado's words, he already knew that Muzan Kibutsuji's most pressing need was a medicine to cure his bloodline defect, and the second most pressing need was the Demon Slayer Corps.

"According to what you said, Muzan Kibutsuji has become extremely cautious because he was almost killed by a member of the Demon Slayer Corps. He almost never appears in public. So if we want to kill Muzan Kibutsuji, we must give him a reason to attack."

Kagaya Ubuyashiki had a vague idea of ​​Lin Yu's plan, but his face was still full of worry.

"The biggest temptation is of course the doctor's prescription, but he has been searching for herbs for three hundred years. How could we possibly find them in such a short time? Does that mean our Ubuyashiki family has to be used as bait?"

Tanjiro Kamado slowly shook his head, then nodded:

"To be precise, Mr. Ubuyashiki was only half right."

He organized his thoughts, recalling what Lin Yu had said to Tanjiro Kamado, and continued:

"Because Muzan Kibutsuji is cautious, our killing of Upper Moon Six was a huge blow to him, so he will definitely be furious this time and issue an ultimatum to the Upper Moons."

"But Muzan Kibutsuji, who values ​​his life, would certainly not take risks himself, so his thoughts are easy to understand. He would definitely ask the Upper Moons to achieve something."

"Therefore, we must expose the location of Mr. Ubuyashiki's family, and then rekindle Muzan Kibutsuji's sense of crisis by killing the Upper Moon demon. If a demon that is immune to sunlight were to appear at his most panicked moment, what would he think?"

Upon hearing this, Kagaya Ubuyashiki's pupils contracted. If he were Muzan Kibutsuji, facing the increasingly powerful Demon Slayer Corps, he naturally could not delay any longer. Only by taking the initiative at this moment could he have a better chance of winning.

This setup, this method...

Kagaya Ubuyashiki felt a sense of relief; thankfully, someone like Lin Yu was on humanity's side.

However, he also had one question:

"This sun-immune demon, what should we do?"

“Naturally, she is my sister.”

Tanjiro Kamado couldn't help but get a little excited as he spoke.

He had always wanted to save Nezuko, but had been struggling to find a way.

But when he heard Lin Yu say these things, he was immediately tempted.

Even if it wasn't to seduce Muzan Kibutsuji, he felt that this was something he had to do.

"Could it be that your master possesses that so-called blue spider lily?"

Kagaya Ubuyashiki was startled.

However, Tanjiro Kamado shook his head and said:

"No, that's not it. But my master said my sister's bloodline is quite special. If she's given some additional medication, it's very likely she can overcome the effects of sunlight."

"Although my master didn't know the specific method, he did know where to find such talent."

"Such talent exists? Why have I never heard of it before?"

Kagaya Ubuyashiki couldn't help but ask quickly.

"Because this talented person is also a demon, she was once controlled by Muzan Kibutsuji, but eventually broke free from Muzan Kibutsuji's control through her research on pharmacology, and is now researching how to cure demons."

Tanjiro Kamado began to repeat the story.

"There are still such extraordinary people in the world..."

Upon hearing this, Kagaya Ubuyashiki couldn't help but sigh, but he was even more amazed that Lin Yu knew so many secrets.

“My master has already told me her location. All I need to do is give her this bottle of my sister’s blood and write a letter, and I will surely get her help.”

Tanjiro Kamado took out Nezuko's blood, which he had prepared earlier, from his pocket and handed it to Kagaya Ubuyashiki.

"Okay, leave this to me."

Kagaya Ubuyashiki nodded.

"As for me, I will take care of the headquarters after Mr. Ubuyashiki announces the location of the headquarters."