After listening to Jotaro's explanation, not only Tanjiro, but even Shinobu was shocked. With this, the scope of searching for demons was indeed greatly reduced. Because in order to obtain chemical reagents for studying blood samples, there are usually only a few methods.
"Japanese local chemical manufacturers, pharmaceutical companies, universities, and certain research institutions. The most troublesome part is that that bastard relies on imports."
"Yare yare…"
Checking them one by one is indeed troublesome, but fortunately Japan's domestic water resources are not yet developed, and places that provide chemical reagents are generally concentrated in developed regions.
According to Jotaro's speculation, the highest possibility of finding Muzan is in the Tokyo area.
Even if he is not in Tokyo, following this line of thought, even if they search all over Japan, they will definitely be able to find Muzan. It's just that this will take more time.
Shinobu looked at Jotaro, somewhat astonished. In her impression, punks only cause trouble, provoke fights, and don't really have anything worth praising.
But Jotaro… she found that Jotaro's brain worked surprisingly well, and he understood a lot of things.
As someone who works in the medical field, she knew a bit about chemical supply places, but far less than what Jotaro knew.
Jotaro and Giyu are both the silent type.
Giyu has an antisocial personality and has basically lost the ability to communicate with normal people.
But Jotaro just doesn't like to waste words. He thinks if he doesn't speak, others should still be able to understand. In fact, he's the type who is very talkative and his words and actions are very logical. If not, it would be impossible for him to earn a doctorate in oceanography later.
———
Muzan was already prepared to hide for another hundred years. To face Jotaro again, to be honest, he didn't have the courage.
The terrifying speed of Star Platinum, its fierce strength, and astonishing endurance had already left an unforgettable impression on him.
Moreover, through Nezuko, he saw that Jotaro had already made contact with the Demon Slayer Corps.
If he has mastered the method to eliminate demons… Just thinking of that ghost-like strength wielding twin blades in front of him, his body couldn't help but tremble.
Even if he felt unwilling in his heart, he did not want to face such an enemy again. 'You may be strong, but if I can't beat you, I can still run..Just like when I hid from that beast Yorichi Tsugikuni, I'll hide for another hundred years. After a hundred years, I'll be a hero again.'
However, Muzan still miscalculated one thing, Jotaro is not Yorichi Tsugikuni.
He is not the kind of brute who only knows how to use strength, but a wise man who uses his brain. Even if he hides, Jotaro will still find a way to catch his trail.
———
After sleeping for nearly six hours, at 4 a.m. before dawn, Jotaro got up and left Butterfly Mansion alone.
Now that the Kamado family had been temporarily settled, he no longer needed to worry about their safety.
The most urgent task at hand was to find Demon King Muzan. Besides his own personal desire to beat up Muzan, Muzan might possess the method to turn demons back into humans.
If he could make Muzan spit out that method, then Nezuko could be saved.
As for how to find Muzan, he decided to investigate all places that supply chemical products. Secondly, if he encountered other demons, he would extract information about Muzan from them.
Jotaro stood in the dark night, the cold wind blowing his coat, making it flap loudly.
At this hour, Butterfly Mansion was pitch black. Even the staff there had not yet gotten out of their warm beds. But Shinobu's research room still had its lights on.
"Yare yare…"
Jotaro glanced over, then retracted his gaze and walked toward the front gate of the mansion. His dark figure gradually blended into the darkness of the surroundings.
Although Shinobu was naggy and made him feel annoyed, this woman wasn't as pretentious as he thought. Instead, she performed her duties very well. This made him slightly change his opinion of Shinobu.
As dawn approached, Tanjiro yawned and crawled out from his blanket. Even though Jotaro had told him in advance, seeing the empty bedding still made him feel a little lonely inside.
But he believed Jotaro would definitely return, because he would never abandon Nezuko.
Now that their family was housed at Butterfly Mansion, Tanjiro felt it would be inappropriate to stay here for free. He decided to help around the mansion and do some chores as a way of repaying them.
"Kamado-kun, you're up really early."
As Tanjiro walked out of the room, he happened to run into the smiling Shinobu.
"Miss Shinobu, good morning." He politely greeted her.
Shinobu said, "Kamado-kun, about your sister Nezuko's condition, I think I should inform you."
Tanjiro asked urgently, "Miss Shinobu, is something wrong with Nezuko?"
Shinobu smiled and said, "Nezuko seems to have fallen into a deep sleep for some reason, but all of her bodily functions are normal."
Tanjiro let out a breath of relief. Shinobu continued, "I think this is because Nezuko hasn't eaten humans, and her body has entered a hibernation state."
"In short, this isn't a bad thing. Later, I will conduct a more thorough examination of her body."
After speaking, Shinobu sighed. "Although I want to monitor Nezuko's condition in real-time to find out the cause of the change in her body, after all, this is something I promised you..."
"But I am also a member of the Demon Slayer Corps."
Shinobu's beautiful eyes fixed on Tanjiro and said, "Lately, for some unknown reason, demons have been appearing more frequently, and the number of injured demon slayers is also increasing."
"The medicinal supplies in Butterfly Mansion are nearly depleted, so I must go out for a while to purchase more. During this period, I won't be able to take care of Nezuko."
Tanjiro nodded, understanding her situation.
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