"This price is damn expensive!"

"I knew there was nothing good about him inexplicably lowering the price!"

"Over 3 billion a year, gritting my teeth is doable, it just depends on whether this thing is really as good as he says."

In fact, most people here are of unusual backgrounds and not short on money. After all, even in a place like the Yanlan Empire, having tens of billions is natural, and it's not impossible for family heirs from such high-ranking empires to bring along hundreds of millions or even billions of Divine Crystals.

The key is whether Zhang Menglong's NBeyes is really worth this price!

"Does everyone think the price is a bit high?" Zhang Menglong asked, "To be honest, my price is not unreasonable. After all, the cost of daily disposable NBeyes is already close to 10 million Divine Crystals, and with the R&D expenses I put in, this price is very reasonable."

"That's not up to you," someone immediately retorted, "You made this thing, you say the cost is 10 million, that's 10 million? How do we know if it really costs that much?"

"Yeah! Whatever you say goes?"

Although everyone didn't dare to directly confront Zhang Menglong, he couldn't just kill people for making a fuss, right?

"I know you all have this concern," Zhang Menglong said, "But please ask yourselves, besides me, who else can invent such a thing?"

The crowd was rendered speechless; there weren't no Array Masters or top geniuses with knowledge in various fields present. Yet, after more than a month, there had been no progress or breakthroughs.

"As the saying goes, rare things are valuable. Since I monopolize this industry, I naturally have the pricing power. If you have the ability, make something similar. If anyone makes something similar and sells it cheaper, I'll be convinced!"

Zhang Menglong's words carried an air of arrogance and a touch of dominance, but they had no room to refute them. There was nothing they could do—if Zhang Menglong's NBeyes were as amazing as he claimed, then it was an absolute industry monopoly, with no alternatives for others.

Not willing to spend the money? That's fine; there will always be people willing to pay unless they choose to stay hidden in this cage-like base for three years and accomplish nothing, and whether or not they can join those superpowers will be entirely up to luck.

"Mr. Gu, you say this thing can help us see and sense those Night Demons in the dark, how can you prove that?"

"Yeah, someone has to try it out, right? Otherwise, if it doesn't work, we'll have spent our money and lost our lives too."

"Hahaha, that's only natural," Zhang Menglong laughed, "Everyone would have such a concern," he continued, "We will have a session for this later, but not now. You can look forward to it; before that, I will introduce my second product first!"

Zhang Menglong switched to the second slide, "Next, I want to introduce the second product this time. I know all of you are skilled in using different weapons, so this second product is a kind of special metal powder that you can smelt into your weapons."

Zhang Menglong opened a photo, "Based on my recent research on the Night Demons, I finally understood the mechanism of their powerful regenerative abilities. It is a special substance in their blood. When a Night Demon's body is damaged, it secretes a potent regenerative substance that can divide and differentiate into a new cell within 15 seconds!"

"So, to stop their regeneration, you must first destroy this special substance in the blood. Therefore, I have created this radioactive metal, which I named Krypton Gold."

"Krypton Gold can release a radioactive ray that I have named 'Holy Light.' This ray has almost no side effects on humans, and even has unique strengthening effects, but it has a destructive impact on the special substances in the Night Demons' bodies."

Zhang Menglong released a video. As the Krypton Gold powder made contact, some small particles in the blood rapidly disintegrated and were destroyed. The ray released formed a chain reaction within these cells, and just a little bit of it could destroy an entire fist-sized tissue.

Suddenly, everyone realized something.

Since Zhang Menglong could obtain these blood and tissue samples and even use them for experiments and obtain these results, it meant that Zhang Menglong had captured Night Demons!

This was quite an extraordinary feat!

Firstly, to capture a Night Demon, he had to go into the dark. Not only was he not caught by the Night Demons, but he even captured one alive!

Not that no one had tried capturing Night Demons before. Other survival bases had made several capture operation plans for studying Night Demons, but aside from losing a lot of people, they gained nothing.

To capture a Night Demon, close contact with them was inevitable, and such close encounters were extremely dangerous, with the risk of infection from the Night Demons.

At one time, a survival base paid the price of several dozen Sixth and even Seventh Grade Martial Artists to capture a Sixth Grade Night Demon. When they chained it up and brought it back to the base in a light-proof cage.

They thought they could study it well, but unexpectedly, when they opened the metal cage, there was only a pool of blood left inside, most of the cells in the blood were already dead, and it had almost no research value.

Later, they learned that even in ordinary dark environments, Night Demons couldn't survive. They could live for a while, but only a little longer than in daylight.

Therefore, unless an environment identical to the one outside can be created or research is done directly outside, there is simply no way to study Night Demons!

This alone demonstrated Zhang Menglong's extraordinary methods.

"How do you sell this stuff?" someone cautiously asked, because they knew how difficult researching Night Demons was, and the price paid wasn't likely to be lower than that of NBeyes. The price of this metal powder must be high!

"It's not too expensive," Zhang Menglong said, "With just about 10 grams, a weapon can have damaging effects on Night Demons, at least causing them to lose their regenerative ability temporarily. If the inflicted wound is large enough, it could even kill a Night Demon."

"If the amount added exceeds 50 grams, it can almost cause permanent damage to their regenerative abilities! Of course, this amount is based on the size of the weapons you use. This figure is for reference only. The blacksmith's shop in the survival base can assist you with assessing the amount to be added."

"As for the price of Krypton Gold," Zhang Menglong opened a chart, "Its unit price is 120 million per gram. If you purchase 10 grams in a single transaction, there's a 2% discount. For 100 grams or more, the discount is 5%, and for 1000 grams, there's an 8% discount!"

"Want to become a Krypton Gold tycoon?" Zhang Menglong said in an enticing tone, "Then hurry and place your order now!"