Forging the Strongest Demon Blade from Demon Slayer!

Tanjiro alone had always chosen to believe in Ashura Maru and had never wavered. "Ashura Maru, you definitely have a way, right?"

Hearing this, Lin Fan lowered his hand, turned to face everyone, and spoke unhurriedly.

"Of course. Any so-called curse can be resolved as long as its source is found and dealt with. And the source of the curse on you is Muzan Kibutsuji.

As long as he is slain, the curse entangling your Ubuyashiki Family will naturally disappear as well."

It sounded simple enough, but it was difficult in practice.

The Ubuyashiki Clan and the Demon Slayer Corps had fought against Muzan Kibutsuji for a thousand years without managing to kill him. They could not even grasp his whereabouts.

So killing Muzan Kibutsuji was simply as difficult as ascending to the heavens!

Yet this did not discourage Kagaya Ubuyashiki. The corners of his mouth suddenly rose slightly as he looked at the sorrowful people below and said,

"Even aside from the curse, killing Muzan Kibutsuji has been my lifelong wish. I believe that the Hashira gathered here today are the finest group of warriors since the swordsmen of the Warring States era.

With Tanjiro and Ashura Maru joining us as well, I believe we can surely end Muzan once and for all. When that time comes, I will have no regrets even in death."

"Master..."

The Hashira were filled with grief and sorrow.

The Insect Hashira, who had been deep in thought, raised a crucial question. Her pale violet eyes fell upon Ashura Maru as she asked urgently,

"Even if the curse itself cannot be removed, you can still heal the illness caused by it.

Then if the curse erupts again in a few years and causes the illness to return, can you heal it once more?"

That question had struck right at the heart of the matter. Lin Fan had just been worried that no one would ask, but now he could finally spin his tale without restraint.

"Of course I can heal it. However, as time passes, the curse will grow stronger, and the power I need to suppress it will increase as well."

Having received that answer, the Hashira finally felt relieved. It meant they had been given a little more time.

At this point,

Kagaya Ubuyashiki, standing beside him, had already roughly understood. But he saw through it without exposing it. After all, one could not expect a horse to run without feeding it grass.

"Your power has not fully recovered yet, has it? I read in the letter that you need to kill wicked creatures in order to recover your strength quickly, correct?"

Hearing this, Lin Fan replied matter-of-factly,

"That's right."

After receiving confirmation, Kagaya Ubuyashiki smiled kindly and gave a decisive response.

"Then killing demons must be the best way for you to recover your strength. From now on, the Demon Slayer Corps will submit all intelligence we gather on demons to you, and you may choose whichever missions you wish to carry out."

Having said that, he suddenly changed the subject.

"However, in return, I have a few questions I would like to ask. Would you be willing to answer them for me?"

This was plainly a transaction.

Both sides understood that perfectly well. Lin Fan had expected it and was prepared, so he asked without hesitation,

"What do you want to know?"

Seeing that he had agreed, Kagaya Ubuyashiki let out an imperceptible sigh of relief. Then, with a gentle expression, he asked three questions.

"How much of your power have you recovered? What abilities can you currently use? And what do you know about Muzan Kibutsuji?"

Even if Lin Fan did not answer those three questions,

these people could learn the general details by asking Tanjiro. So he simply did not hide anything and told them whatever he knew.

"I have not recovered much power yet. One ability I can use is Blood Cry. Any enemy I cut will find their wounds difficult to heal, and they will bleed without end.

There is also the Healing ability you just witnessed. Even if a body is shattered beyond recognition, as long as the person is not dead, I can heal them completely..."

Before he could finish,

what he had said already shocked the Hashira.

When facing demons,

the hardest things to deal with were the demons' terrifying regenerative abilities and the fragile bodies of humans.

But if they had this blade,

then the demons' advantage would vanish completely, while humans would gain bodies as immortal as demons!

That fact alone was enough to leave them in disbelief.

Meanwhile, in Infinity Castle, Muzan, who had organized several hunts and experienced this himself several times,

gave it an extremely high evaluation.

Wasn't this completely backwards?! You're a demon, and I'm a demon too?!

He was even on the verge of a breakdown.

Damn it!

Seeing their shocked expressions, Lin Fan nodded slightly in satisfaction. Kagaya Ubuyashiki beside him, however, appeared perfectly calm.

He had obviously known beforehand.

But Lin Fan's next words left everyone present except Tanjiro utterly incredulous!

In their shock, they even thought they had misheard him.

What Kind of Fierce Battle Was That?

[If you do not want to read the daily-life parts, you can skip ahead and start directly from the Infinity Train Arc.]

Lin Fan merely spoke calmly and slowly.

"Besides that, I can provide Nourishment to my wielder. When my wielder uses me to kill demons,

I can recover Demon Power, and I can use part of that Demon Power to strengthen my wielder's body."

When they heard of this ability, everyone's first reaction was that it had to be fake. But when they looked at Tanjiro in the distance,

the fact that he had killed four Lower Ranks in one go on Mount Natagumo was undeniable.

This time, even Kagaya Ubuyashiki could no longer remain calm. If that was true, could the Demon Slayer Corps not cultivate an ultimate powerhouse capable of easily killing Muzan?

As for the Hashira, if they had not known that Ashura Maru would not change owners, they would probably have already stepped forward to try poaching him.

Who would not want a blade that could strengthen its owner?

Fortunately, no one had lost their heads.

Kagaya Ubuyashiki, standing by the corridor, came back to his senses. His smile faded as he asked with extreme seriousness,

"Does this enhancement have any limits?"

Hearing this, Lin Fan's crimson eyes turned toward him. Seeing the firmness in his gaze, he replied,

"There are no limits. However, the stronger the wielder's own power becomes, the more Demon Power my Nourishment will require to have an effect on him."

The stronger one became, the harder it was to improve further?

That was reasonable.

Kagaya Ubuyashiki thought so.

He had even begun considering how he should nurture Tanjiro.

But while he was thinking, Lin Fan did not stop and continued, "I can also possess and control my wielder's body, allowing them to enter a Demonification state.

Once in that state, they can use the powers belonging to me, Ashura Maru. The only drawback is that staying in it too long will cause them to become a demon completely!"

Fearing that they might misunderstand, he deliberately added, "The demons I am referring to are not the same as the demons you know."

Everyone here knew more or less about legends and had some understanding of the so-called demons from those tales.

So no one said anything further.

Besides, it was not nearly as shocking as the Nourishment ability had been.

But Kagaya Ubuyashiki could not help asking, "How great an increase does Demonification grant when using your abilities?"

"You can ask Tanjiro about that."

Lin Fan could not be bothered to answer such a tedious question.

"As for my other abilities, I cannot use them in my current state." After briefly explaining his abilities, he moved on to the third question.

This question was also what the members of the Demon Slayer Corps cared about. As for how to describe Muzan, Lin Fan simply said whatever he knew.

He also took the opportunity to give them some useful information.

"Muzan Kibutsuji is extremely cowardly and bullies the weak while fearing the strong. He was nearly killed by Yoriichi Tsugikuni once, and after that, he hid until Yoriichi died before daring to appear again.

That said, he is still powerful. He has many Blood Demon Arts. The more troublesome ones are the thorned whips that grow from his spine and the fanged, bloody mouths spread across his body..."

As he spoke, he looked at everyone present and said bluntly,

"If you encounter him, he will probably kill you easily. You are all too weak right now."

As soon as those words fell,

the Hashira below wore various expressions. Being told so directly that they were weak was not something anyone would be happy about.

But they had never seen Muzan, and Lin Fan's identity was unusual, so they could not say much.

Tanjiro watched from the side, his heart pounding wildly.

Fortunately, Kagaya Ubuyashiki stepped in to ease the situation. "Are my swordsmen truly that weak?"

Hearing this, Lin Fan looked at everyone below once more, then nodded slightly and said with certainty,

"You really are weak. Breathing Styles can be divided into three stages: mastery, the Demon Slayer Mark, and the Transparent World. Yet no one here has even awakened a Demon Slayer Mark."

Everyone present was hearing this knowledge for the first time, including Kagaya Ubuyashiki.

But that was only natural.

After all, those who awakened the Demon Slayer Mark did not live long, making it difficult to pass down. And almost no one could master the Transparent World, so it was perfectly reasonable that no one knew of it.

Hearing of such knowledge for the first time,

Kagaya Ubuyashiki immediately wanted to know more and hurriedly asked, "Then how does one awaken the so-called Demon Slayer Mark and Transparent World?"

Lin Fan could not clearly explain how they were awakened, so he could only brush it off with a few vague words.

"When the time comes, they will awaken naturally. Also, while awakening a Demon Slayer Mark can greatly increase one's power, it will cause you to die before the age of twenty-five."

At that moment, the place fell silent.

After a moment,

Kagaya Ubuyashiki was once again the one who stepped forward. With a solemn expression, he asked, "Forgive me, but may I ask who Yoriichi Tsugikuni was? And why was Muzan nearly killed by him?"

Faced with the question, Lin Fan's gaze drifted faintly toward the box containing Nezuko in the distance.

Kagaya Ubuyashiki immediately understood and announced before everyone, "I have already acknowledged Tanjiro and Nezuko. I hope all of you can acknowledge them as well."

The Hashira no longer held such great hostility toward Tanjiro, but they still could not accept Nezuko as a demon.

Still, no one wanted to make trouble for themselves at this time.

Kagaya Ubuyashiki understood that he could not make everyone acknowledge Nezuko with just a few words, and there was nothing he could do about it.

Fortunately, Lin Fan did not dwell on the matter. After sweeping his eyes over everyone once, he began speaking on his own.

"Yoriichi Tsugikuni was the origin of all Breathing Styles. He created Sun Breathing and was born with both the Demon Slayer Mark and the Transparent World. He was probably the strongest human in this world."

It was only such a brief introduction.

Yet everyone present could already seem to see just how powerful that legend had been!

"When he first encountered Muzan, he discovered that Muzan possessed five brains and seven hearts, and that he had overcome the weakness of decapitation.

Only Sun Breathing and sunlight can kill him completely."

The moment those words were spoken,

everyone present was truly stunned.

They could not imagine how such a powerful Muzan had been defeated by Yoriichi Tsugikuni, nor what kind of terrifying battle had erupted between them.

But Lin Fan's next words completely shattered their fantasies. "Though it is rather funny, Yoriichi Tsugikuni killed Muzan in an instant. If Muzan had not run so quickly, he would likely have died long ago."