After all, being with this Pluto who holds the 'Satan Wings' in his hand all the time, the pressure is really too great.

After eating lunch together, Koizumi Hongzi didn't stay any longer.

Send off this witch lady.

Kaito Kuroba also took the initiative to chat about the 10 million material fee. To sum it up, it was because he had a bad cold after returning from Mermaid Island that he couldn't go to the black market for trading.

However, it seems that the **** brother has a conscience and knows to come to visit him, so he also decided to help buy it as soon as he recovers from his illness.

"Then you should take care of yourself."

Ye Geng nodded, came to a cool place in the corner of the room, leaned over to observe a transparent jar placed here, and after confirming that the solution inside had been completely fused, he opened it and used his nails to pick out some and wiped it on the palm of his left hand.

Kuroba Kaito came over curiously to watch.

In the morning, he wanted to ask, but because Hongko Koizumi was present, it was inconvenient for him to discuss more about disguise and disguise, so as to 'expose' the relationship between himself and Kaitou Kidd.

But now, after seeing the effect of the solution, Kuroba Kaito finally couldn't help asking:

"Eh? Brother, this thing looks good, is it your new research?"

"It's just a modification of the mixing ratio of the materials, which is not a new research." Ye Gengyi said.

"I'll try too..."

Kuroba Kaito also took a fingernail and wiped it on his finger.

After a few seconds.

"Good thing! If you don't touch it carefully, you may not even be able to feel its existence. The flexibility is good and the air permeability is also very good. Hehe, brother..."

Kuroba Kaito showed a 'you understand' expression.

"Put on the mask and prepare two more materials. I'll teach you." Ye Gengyi said.

"Okay!" Kaito Kuroba quickly ran to the secret room to get something.

A little while.

The coffee pot and teacups on the coffee table were gone, replaced by a dozen large and small bottles and cans.

As soon as Ye Geng confirmed the labels, he arranged them in order according to the order in which they were prepared.

Since it is necessary to explain the blending process and which data model to apply this time, Ye Gengyi deliberately slowed down the action, and only proceeded to the next link after confirming that the ratio of materials in the black feather quick bucket tank was normal.

Hey, do you even have to master the number and strength of shaking?

Kuroba Kaito muttered silently in his heart, but there was no mistake in the movements of his hands.

It is often Ye Gengyi who finishes explaining the principles and demonstrates the movements, and then he can copy the whole subject and repeat them.

Teaching went well.

In this way, for about an hour or so, two jars filled with the 'new' type of translucent liquid were placed in the shadow of the corner.

"Wait for about two more hours, and it will be ready to use."

As soon as Ye Geng said, he picked up the pen and paper beside him and began to write.

After writing the pen, he checked the steps again from the beginning to the end, and then handed it to Kaito Kuroba, saying:

"For the sake of your fever and maybe not enough brains, learn to destroy it."

"Tch... who do you look down upon?"

Kuroba Kaito took it, folded it up and put it in his pocket.

At this time, he also felt a lot.

Originally, he thought that after inheriting his father's disguise, he was quite proficient in the materials and masks used for camouflage.

As a result, after listening to Ye Gengyi's explanation, Kuroba Kaito realized that he really only knew it but didn't know why.

When making props, why use those kinds of materials in a fixed link, and how the materials have changed during this period of time, these details one after another seem cumbersome, but after mastering it, you may be able to Maybe it will play a miraculous effect against this kind of opponent in the future.

"Hey, by the way, brother, since you are here, you are helping me to see this."

Kaito Kuroba trotted back to the bedroom, and walked out with his laptop in a short while.

After turning on the phone, he opened a document and handed it to Ye Gengyi for him to check.

"This is... a smoke bomb."

"right."

Kaito Kuroba nodded, "The availability of the other props of that old man Li is nothing to say, but this smoke bomb, sometimes when used outdoors, is blown by the wind and dissipates too quickly. I tried to improve it. The amount of medicine inside has been increased, but the effect is still not very satisfactory sometimes."

"Your thinking is limited by quantity..."

Ye Gengyi quickly read the document, and also understood what Kuroba Kaito was thinking.

He explained while making revisions:

"With the existing technology and cost, if we blindly pursue the compressed charge, we need to improve the ignition and detonation device. Why don't we change our thinking... Well, how about this change?"

"Use two smoke bombs at a time, replace the ingredients in the smoke agent, let the two detonate and fuse in the air, and then produce a larger range of smoke?" Kaito Kuroba's eyes lit up.

"I use this method all the time, like..."

As soon as Ye Geng said, he also took out two **** and put them on the table, giving an example:

"After one of them is detonated, it will continuously release dust, covering a range of about 10 meters in diameter. Although its concealment is average, if it is combined with an incendiary bomb, it will explode instantly. Compared with traditional grenades, the volume is smaller and the lethality is slightly stronger. .”

"This is a bit dangerous..." Hei Yu broke into a sweat.

It's better to avoid killing people, hypnotic gas, flash bombs and smoke bombs are fine...

"Just to give you ideas." Ye Gengyi said disapprovingly.

He also doesn't want to have the kind of time when he needs to use these things frequently, but if he really needs to use them, then there won't be any psychological burden.

"I want the kind of smoke bomb that can form a large-area shielding effect outdoors after the two are detonated together." Kaito Kuroba said.

"Oh, I'll help you research later."

Ye Geng nodded and said: "When I have an idea, I will send you the formula and ratio directly, and understand the reaction relationship inside, and we can study new ones together in the future."

Kaito Kuroba suddenly felt that someone's "scientific research certificate" might be wrong again~lightnovelpub.net~ Recalling that when he was studying the effect of repairing nano-robots, he was "under house arrest" by his brother at home, and his arms were constantly broken On the screen, I shuddered immediately, and hurriedly sent a basin of cold water, saying:

"No need... bro, I'm only in high school."

"Sooner or later, I will learn." Ye Geng said calmly.

"Cough...then I'll learn slowly first, and I'll ask you when I don't understand something."

Kaito Kuroba considered his words carefully, trying to push this matter to the future as much as possible.

"Oh, that's up to you."

To Hei Yu Kaito's surprise, Ye Gengyi just nodded, with a rare tiredness appearing on his face:

"I'm a little sleepy, take a rest."

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