When Shinobu Kocho saw Jotaro looking over, she thought, 'Jotaro and Tanjiro must have encountered one of those ravenously hungry, all functions-degraded demons.'
'That's why they were so reckless. Once they understood the true terror of demons, perhaps then they would understand her good intentions.'
She lightly parted her tender lips and began to speak slowly, "On the surface, demons seem like irrational monsters, but that's only when they are in a state of hunger and want to eat human flesh. In most cases, they are just like humans, possessing intelligence and able to cleverly hide themselves."
Jotaro's face had already darkened. Anyone who had seen demons should already know such pointless information. If she kept talking about this kind of meaningless stuff, he would no doubt explode on the spot.
Shinobu continued, "They possess astonishing vitality. Even if their limbs are twisted off, or their stomachs are pierced, they can rapidly regenerate."
Demons possess powerful self-healing abilities, no one knew this better than Tanjiro. After all, that demon had been beaten into a pulp by Jotaro, yet still managed to escape.
Just having its limbs twisted off and stomach pierced, to recover from such injuries could indeed be called an astonishing vitality.
'Had Miss Shinobu and the others really encountered such demons?:
"Tsk." Jotaro was already getting impatient.
Shinobu glared at him. 'Making such a noise while someone else was talking, how rude.'
"The demon's weakness is sunlight, and a special weapon called the Nichirin Blade. If their necks aren't cut off with this kind of blade, they won't die."
She spoke solemnly, "So you should understand, for ordinary people, demons are extremely troublesome beings."
"With a human body, there's simply no way to contend with such monsters. You two should discard such childish ideas as soon as possible."
"I only have one question." Jotaro looked at her and asked indifferently, "What is this Nichirin Blade? Why do demons die when their necks are cut off by it?"
Shinobu said, "The Nichirin Blade is made from a special ore that can absorb sunlight. This is the only weapon that can cause real harm to demons."
"Jotaro-san, it's best you don't get any ideas about the Nichirin Blade."
Still feeling uneasy about this reckless guy, Shinobu said, "If you run into a powerful demon, even with a Nichirin Blade, with just human strength, you still won't be able to sever the demon's neck."
"Human strength has limits. The reason why the Demon Slayer Corps can fight demons is because its members have all mastered a special breathing technique."
Jotaro sighed helplessly. This kind of information was indeed valuable to ordinary people, as it taught them how to kill demons. But to Jotaro, the only takeaway from this information was one thing, only sunlight can kill demons.
'What Nichirin Blade? In the end, it still relies on the power of sunlight.'
Only sunlight can kill demons, this was kind of similar to that guy Dio.
Fighting such enemies, in the past, even with Star Platinum, it would have been quite troublesome for Jotaro.
But now he had already learned the Ripple breathing method. The Ripple could simulate the power of the sun. To demons, it was undoubtedly a deadly weapon.
With such power, how could he possibly have any interest in the Nichirin Blade? Besides, compared to using a sword, he still preferred beating people up with his fists. After all, he'd been using fists since he was a kid, and they felt more natural to use than swords.
Jotaro's attitude of not taking her seriously made Shinobu furrow her brows. "Jotaro-san, did you even listen?"
Guys like Jotaro, full of arrogance, if it were in the past, she wouldn't have cared whether they lived or died. If he wanted to die, then let him die. Just don't die in front of her.
"Huh? Woman, what are you saying?" Clearly, Jotaro hadn't listened to anything.
Shinobu deflated a bit and didn't feel like dealing with him further. After all, finding demons was an extremely difficult task.
Even though the Demon Slayer Corps had a vast intelligence network, they could only track demons after they killed people.
Someone like Jotaro, trying to find a specific demon, even the Demon Slayer Corps couldn't manage that.
"You, woman, although you said a bunch of useless stuff, you did remind me of something." Jotaro gave her some acknowledgment. "Looks like you aren't entirely useless."
A vein bulged on Shinobu's forehead. Narrowing her eyes, she smiled and said, "Jotaro-san, you should be saying that to yourself. Why do you always like to go against others?"
Jotaro ignored her and said, "As for why that bastard had the scent of ammonia and methanol on him, I've already figured it out."
Tanjiro exclaimed in surprise, "Jotaro-san, really? Why?"
Shinobu shook her head. She didn't expect there to be such a stubborn person in the world. But she no longer intended to interfere.
Still the same thing, the entire Demon Slayer Corps couldn't locate one specific demon, so how could Jotaro find someone among tens of millions of people?
Jotaro said, "I think he must be conducting some kind of research, some kind of biological research."
Tanjiro opened his mouth, not quite understanding.
"Tanjiro, let me ask you. If you had very sharp hearing, but also had endless life, what would you do for the rest of your life?"
The shadow of Jotaro's cap brim covered his eyes, but no one could deny that beneath that shadow, his eyes were surely shining with a wise light.
Tanjiro was stunned for a moment, then answered without hesitation, "Of course, I'd try to find a way to cure my hearing."
After speaking, he suddenly understood. If someone had endless life, how could they tolerate a flaw in themselves?
As long as such a flaw existed, even with a long life, their existence would not be happy, but instead filled with constant pain. No one wanted to live in pain, so they would inevitably try to eliminate it.
"So…"
Having been with Jotaro for a while now, Tanjiro felt like his brain was working faster. He had already learned to answer ahead of time.
"So those demons with eternal life must be trying every possible way to overcome sunlight. Not being able to act during the day is their greatest flaw."
Jotaro nodded. That was exactly what he meant.
Being acknowledged by Jotaro, Tanjiro beamed with joy, his brows relaxed and his face blooming. He felt he was one step closer to becoming a man like Jotaro.
However, he also thought there was still a big gap between them. After all, he still couldn't figure out the connection between the two things.
"Jotaro-san, what does this have to do with the ammonia and methanol scent on the demon?"
"Yare yare daze." Jotaro stood up, hands in his pockets, with a faint smile at the corner of his lips.
That smile was from excitement, because by figuring out this one point, the distance between him and Muzan had undoubtedly shortened.
The day he slays Muzan wouldn't be far off. By understanding the demon's motive, many previously unexplainable things now had a traceable origin.
Demons with endless life would surely try every way to overcome sunlight. Methanol is used in many fields: chemical engineering, energy, medicine, it's everywhere.
But Muzan clearly wouldn't be interested in those fields.
Combined with ammonia, it was easy to guess what Muzan was doing with these two reagents.
Muzan must be researching his own blood. Ammonia and methanol were certainly reagents used to create blood samples.
Tanjiro couldn't identify other smells on Muzan, but they must be from similar reagents as well. Perhaps some kind of anticoagulant, or hemolytic agent.
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