At this moment, Zhao Qingzhu, who was standing next to Zhu Yuntong, smiled excitedly. She knew that Zhu Yuntong never disappointed.

No matter the time, if Zhu Yunwen says he can do something, he will definitely do it.

This time was no different; even the lighter was easily made by Zhu Yunwen.

This made the prince of Zhu Zi Kingdom extremely ugly. He had no choice but to admit that Zhu Yunwen was indeed formidable.

It's amazing that in such a short time, someone was able to get others to make a lighter by providing some parts according to his instructions.

You should know that Zhu Ziguo had been researching and improving the lighter for a long time, constantly studying and perfecting it, before finally obtaining what he considered to be a flawless and exquisite masterpiece.

However, Zhu Yunwen managed to create such a thing in a short time, which is truly unbelievable.

This also dealt a heavy blow to the prince of Zhu Zi Kingdom, but he was still unconvinced, so he said:

"Even if you manage to make it, so what? Can you really control the cost to around ten cents?"

Zhu Yunwen said with a smile:

"The fact that I was able to get so many parts collected in such a short time and then assemble them simply shows that his production is not difficult."

If something isn't difficult to make, its cost won't be too high. You can take a look at what those costs are.

A small iron box, plus a small polished flint, a small iron sheet, a wick, a wad of cotton, and a small amount of vegetable oil.

All these things combined probably only cost two coins. If you include labor costs, it's just another two coins.

This thing, at most, costs around five cents to produce. My earlier estimate of ten coins was really a bit too high.

Upon hearing this, the prince of Zhu Zi Kingdom trembled slightly. Five coins as cost? How could that be possible? How could the cost be controlled so low?

He clearly couldn't believe it, but the princes and princesses around him couldn't help but nod in agreement.

After all, they had seen the other parts before; they were nothing more than a small iron box, a wad of cotton, a wick, a strange flint, and a little bit of vegetable oil—things that were worthless.

Once assembled into a lighter, it will be worth a lot more, but it's undeniable that the cost is actually quite low.