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

Centuries of waiting had completely exhausted his patience, and he even felt that he might never find the so-called blue spider lily in his lifetime.

Unexpectedly, there is always a way out, and an individual has emerged who is able to overcome the sunlight.

So no matter what the cost, he had to bring Nezuko to his side and study her carefully.

"Nakime, summon all the other demons."

Muzan Kibutsuji's voice echoed throughout the Infinity Castle. (End of Chapter)

Chapter 287 Muzan Kibutsuji's Decision

Without a doubt, Muzan Kibutsuji's orders carry absolute weight among the demons.

Even though Muzan Kibutsuji had given them the order to hide two months ago, they didn't hesitate to rush back to the Infinity Castle this time.

The first to arrive were Kokushibo and Akaza.

Kokushibo and Akaza still maintained their human forms, but upon closer inspection, one could notice that a certain part of their bodies had undergone a change.

Eyes could be seen flashing all over Kokushibo's body from time to time.

Akaza, on the other hand, shows a faint burning of blood where the tattoo of a sinner is located.

Akaza's eyes were now incredibly determined. After receiving Muzan Kibutsuji's blood, he had been on the verge of death.

At the moment of his death, he recalled many memories of his time as a human being.

The things contained in his memories made him wander, turning him from a human into a demon. In the end, his memories were frozen at the moment when he was defeated by Tanjiro Kamado.

He was consumed by resentment and humiliation, which ultimately led him to break through.

He now felt that if he faced Tanjiro Kamado again, he would definitely not be as pathetic as before.

Kokushibo remained kneeling on the ground as always, with his three pairs of eyes closed. The eyes that occasionally appeared on his dimensional body proved that even in the Infinity Castle, Kokushibo remained vigilant at all times.

When the two entered the Infinity Castle, they were already informed that Muzan Kibutsuji would summon them immediately.

So they quickly arrived here and waited.

Before long, the heavy sound of doors opening rang out. Akaza's eyes narrowed, and Kokushibo opened his six eyes.

They all knew that Muzan Kibutsuji had descended.

“Lift your head up.”

Sure enough, after the sound of the door closing in faded away, Muzan Kibutsuji's cold voice rang out.

The two ghosts looked up and noticed that Muzan Kibutsuji's crimson eyes were flashing in the air.

"I called you here today because the demon that can overcome sunlight has appeared."

"Kibutsuji Muzan said calmly."

The two were immediately shocked and looked at Muzan Kibutsuji in disbelief.

The thing they'd been searching for for hundreds of years was actually born just like that?

However, seeing that Muzan Kibutsuji showed no joy whatsoever, they realized that this task would likely be difficult.

"It's just a pity that the ghost that was born has already broken free from my control."

Muzan Kibutsuji ignored their thoughts and continued:

"And according to my memory, if I'm not mistaken, that person is the younger sister of the boy you fought before, Tanjiro Kamado."

"what?"

Both Kokushibo and Akaza couldn't help but exclaim in surprise.

However, their emotions were different.

Akaza couldn't help but recall the moment he was defeated, and resentment and anger overwhelmed him, while Kokushibo vaguely realized why Muzan Kibutsuji had summoned all the demons to the Infinity Castle, and his heart couldn't help but be excited.

As he grew more excited, more eyes appeared on his body, and one could vaguely see blades piercing through his kimono and emerging from his skin.

"Kuroshibo, it seems you've already guessed it. That's right, I think we can consider the proposal you made two months ago."

Kibutsuji Muzan looked down at him, his voice instantly transforming from calm to incredibly oppressive:

"But your strength still doesn't put my mind at ease."

"Even though I have given you more blood, are you confident that you can defeat that boy named Tanjiro?"

Cold sweat instantly soaked their backs. Muzan Kibutsuji's suppression of their bloodline made it almost impossible for them to tell any lies.

"Gudong"

Akaza swallowed hard, wanting to speak, but ultimately hesitated. After all, Muzan Kibutsuji hated failure, and if he said he couldn't defeat him at this moment, he didn't know what he would experience.

In the end, it was Kokushibo who spoke first:

"Very difficult."

Kokushibo's words were unwavering. Although he couldn't accept the fact that he had failed and he didn't want to lose, not wanting to lose and lying were two completely different things.

After a pause, Kokushibo slowly spoke:

"For the past two months, I have been honing the new power within my body, and I have now basically mastered it. But whenever I think back to that battle, I feel that I can only withstand his attacks, and that's all. I still don't have the confidence to defeat him."

"However, I believe that if Lord Muzan were to take action, the outcome would be completely different."

"Hmph, then what use are you to me?"

Muzan Kibutsuji snorted coldly, but the invisible pressure in his words suddenly vanished:

"Now that we're going to take that girl who's escaped my control, we'll inevitably have to face that boy. So I've been observing your memories repeatedly and I know that it might be very difficult for you to defeat him. That's why I've summoned you here alone."

"I wish to bestow upon you my blood once more, so that your strength may be increased once more."

Muzan Kibutsuji completely ignored Akaza, who was standing to the side with a somewhat dazed expression, and spoke up.

Although he said he was going to steal the girl who had overcome the sun, that didn't mean he wasn't careful.

Or rather, ever since he faced that terrifying figure, he has become even more afraid of death.

So when he made up his mind, he was already thinking about how to deal with Tanjiro Kamado.

After repeatedly studying Akaza and Kokushibo's memories, Muzan Kibutsuji indeed discovered that Tanjiro Kamado's advantage over other demons lay in his strength and speed, which far surpassed theirs.

Muzan Kibutsuji estimated that his opponent's speed was slightly weaker than his own, but he couldn't discern any difference in strength.

However, having studied the human body for so long, Muzan Kibutsuji knew that no matter how much humans trained their strength, it would be difficult to overcome the innate differences.

Just like an elephant to an ordinary human, no matter how much an ordinary human trains, they can never compare to an elephant.

As a ghost, he can freely modify his body, and his body density is many times higher than that of an ordinary human, so he can easily use powerful strength.

Logically speaking, Tanjiro Kamado shouldn't be able to use such powerful energy. So, the reason why the other party has been able to maintain such powerful energy is because Kokushibo previously mentioned that there is an energy on the other party that he has never seen before.

So, just to be on the safe side, his first priority was to test just how powerful Tanjiro Kamado really was.

He couldn't be the one to conduct the test, so he thought of Kokushibo and Akaza.

However, in his opinion, even though the two have already undergone an enhancement, they may still be at a disadvantage in terms of speed.

If you can't even keep up with your opponent's speed, you're just going to get beaten up.

Therefore, Muzan Kibutsuji had a very clear plan: to at least upgrade Akaza and Kokushibo to the same level in terms of speed.

We can also observe from the side how strong Kamado Tanjiro really is. If we detect any signs of something amiss, Kibutsuji Muzan will flee far away and never appear in Kamado Tanjiro's sight again.

This is the safest approach.

Although it's possible that Kokushibo and Akaza might surpass him in strength and speed afterward, that's only a possibility.

The risks are infinitely lower than the benefits of gaining access to the girl who overcame the sun.

Most importantly, if he could capture both Tanjiro Kamado and Tanjiro's sister at the same time, perhaps he could also learn the unique power that Tanjiro Kamado possessed.

At that time, he will surely be able to take a big step forward.

Upon hearing Muzan Kibutsuji's words, Kokushibo immediately understood what the other was thinking. Although he knew he was being used to test the other's strength, Kokushibo didn't care at all.

For him, the only thing he wants to do now is defeat Tanjiro Kamado.

Without a doubt, Tanjiro Kamado has now become another insurmountable obstacle in his heart.

The first hurdle was given to him by his older brother, Yoriichi Tsugikuni.

Overcoming the hurdle of Kamado Tanjiro is very likely one of the keys to overcoming the hurdle of Tsugikuni Yoriichi, which makes him extremely determined to defeat Kamado Tanjiro.

At the same time, he also realized just how determined Muzan Kibutsuji was to obtain the secret to overcoming sunlight.

After all, he vaguely knew that Muzan Kibutsuji had always cared about the power of the demons under his command. However, as the ceiling of the power of all the demons under Muzan Kibutsuji, he naturally knew what an insurmountable barrier Muzan Kibutsuji's power was to them.

He knew that if he accepted Muzan Kibutsuji's gift in this way, he would most likely be discarded by Muzan after he had served his purpose.

But no matter what, this is an opportunity.

He hated losing to others more than dying.

Therefore, no matter what he bets on, he has to win, even if the stake is his own life.

"Thank you, Lord Muzan, for granting me power."

Kokushibo slowly lowered his head.