Another thing is gene technology.
Modifying Muzan's blood through gene-encoding technology.
However, in this era, even with the knowledge and technology, it would be difficult to achieve.
After re-examining the seal and reinforcing it, Shimizu quickly placed the test tube containing the flesh into the safe.
Locked it, added another layer of seal outside, and placed it under the floor tiles.
Because in the perception of the Transparent World, Shinobu Kocho is coming.
In less than a dozen seconds, Shinobu Kocho, carrying a lantern made of fluorescent lights, walked to the door and knocked.
"Come in."
"Turn demons... back into humans?"
"Regardless of whether it succeeds or not, it's worth trying. Isn't it said that our generation has the best chance to eliminate Muzan? Muzan's strength is very strong, and even I don't have the confidence to win. But if we can find an opportunity to turn Muzan from a demon into a human, will he still have his current strength?"
That makes a lot of sense.
Shinobu Kocho also became somewhat interested.
"If I have time, I can also help with the research. Perhaps we can take a little blood from Tanjiro's sister as material. She is a very special demon, unlike other demons who have excessive bloodlust."
Shimizu nodded slightly.
"That would be great. You have the deepest understanding of the weaknesses of demons among the Demon Slayer Corps.
In addition, I can also use my family's connections to invite some scientists in the field of biomedical science to assist, so the chances of success will be greater."
Shinobu Kocho looked at Shimizu and said:
"Those things can wait until tomorrow. I came to find you tonight because there are some things."
Shimizu's movements couldn't help but pause.
In the middle of the night, a lone man and woman...
"Ahem, um... it's my first time, should we prepare some protection?"
This time it was Shinobu Kocho's turn to be stunned.
"What first time? But the safety measures are already prepared."
Shimizu's heart skipped a beat.
But Shinobu Kocho's next words immediately made him a little embarrassed.
"Sanemi and Uzui caught a few demons and brought them back. They are now locked in the forest. Many wisteria flowers have been planted there, and there are always Pillars and members guarding them. There are definitely enough safety measures.
They heard about the fluorescent light and want to test its effect. If it works, then we will try our best to popularize the fluorescent light within the corps. The Master will also use his connections to try to promote the fluorescent light."
So that's what she meant by safety measures...
"Then let's use this to test it."
Shimizu took a section of bamboo from beside the table.
This was a flashlight he made with a fluorescent light, and the battery was a zinc-carbon battery.
The capacity of this battery is not very large, but it is already the relatively large electrical energy capacity battery that Shimizu can produce based on the current era.
Shimizu and Shinobu Kocho tidied up the things in the house, took the fluorescent light flashlight, and came to the forest.
At this time, the other Pillars had already arrived, and even Kagaya Ubuyashiki had been brought to the scene by Amane in a wheelchair.
This is a wisteria forest. In the open space in the center of the forest, there are several cages made of refined steel, containing ferocious-looking demons. The expressions on their faces are either fierce or fearful, and their hands, feet, and mouths are bound by iron chains.
"Ahem, Shimizu, Shinobu, you've arrived."
Kagaya Ubuyashiki looked at Shimizu and Shinobu Kocho.
"Hey, I said, Shinobu, didn't I ask you to call Shimizu to bring that fluorescent light over? Where's the light?"
Sanemi Shinazugawa squatted beside the cage, frowning.
"Of course I brought it."
Shimizu took out the fluorescent light flashlight and pressed the button in front of everyone.
A clear, cold white light suddenly shot out from the front of the flashlight and shone on the cage.
The first demon, under the irradiation of the light, turned to ashes in just a few seconds. The second demon, which looked a little stronger, began to have the skin and muscles on the surface of its body rapidly dissolve when it was illuminated.
The other party also began to struggle non-stop, but could not break free from the iron chains, and followed in the footsteps of the first demon in just over twenty seconds.
The subsequent demons were the same. The shortest one lasted only four seconds, and the longest one lasted about half a minute.
Kagaya Ubuyashiki was immediately overjoyed.
Without exception, one head, one shot, one inside, one capacity, one in one look!
The other Pillars were equally excited.
The demons that swordsmen used to have to pay the price of their lives to kill can now be easily dealt with under the irradiation of fluorescent lights.
"The efficiency is still a bit low, but there's no way around it. The power of the battery is only so much. It's not impossible to make it bigger, just connect a few more batteries in series.
It's just that while the fluorescent light has a stronger illumination ability, its size and weight are not small, making it difficult for members to carry."
Shimizu looked at the empty cage, turned off the flashlight, and said.
"No!"
The seriously ill Kagaya Ubuyashiki stood up excitedly.
Amane immediately got up to support him.
"This is an invention that will change the world and change the pattern between humans and demons!"
Tears streamed from Kagaya Ubuyashiki's eyes.
"If one day, every corner of every place is lit with streetlights that can emit sunlight, then demons will no longer pose any threat to humans!"
This time, he really felt the hope of eradicating the demons.
"Namu Amida Butsu... Although Muzan is not eliminated and demons are not eliminated, if fluorescent lights can be promoted, the threat of demons to humans will indeed be greatly reduced."
Gyomei Himejima followed suit and shed tears.
"Promotion is not that easy."
Shimizu shook his head.
"The energy consumed by fluorescent lights is much more than other lights. The battery of this flashlight in my hand can only maintain a dozen minutes of illumination time."
"Not to mention the rare gases and vacuum tubes that need to be used, the former is expensive, but at least it can be produced in batches, but the latter, with the current level of human technology, is still difficult to manufacture on a large scale, but it will definitely be achieved within twenty years, but it will definitely not be now."
"And once the demons discover the popularity of fluorescent lights, they will probably hide even deeper in the future, making it even more difficult to eradicate them."
In his opinion, the current fluorescent lights still have many shortcomings.
"But at least this is a gorgeous beginning."
Tengen Uzui followed suit and stood up and said.
"The size of this fluorescent light flashlight is very small, and it will not have any impact in battle. If it cannot be manufactured on a large scale, can we first make a small batch and equip it for those weaker members of the corps to reduce casualties?"
Sanemi Shinazugawa looked at the fluorescent light flashlight with bright eyes.
The other Pillars also closely followed and expressed their views.