Zuan originally wanted to ask about Shenzhou directly, but seeing how polite the other party was, he felt embarrassed and changed his question to Wu Yangyu.
Wuyang Jade is one of the necessary materials for Daji's level breakthrough. I asked the Imperial Hospital in the capital, and even the knowledgeable imperial physicians didn't know about it. They said that if anyone in the world knew about it, it must be Yu Yanluo.
After all, the Yu family controls the jade business in the world, and Yu Yanluo is the head of the Yu family.
"Wu Yangyu?" Yu Yanluo was taken aback, then her face flushed slightly. "Please wait a moment."
Zu An wondered why the other person was blushing while speaking, but then he saw the other person turn around and make a rustling sound. Judging from the movement, he couldn't tell whether the other person was lifting up their shirt or skirt and taking something out of their lower abdomen.
She turned back around, a faint blush appearing on her usually dignified and composed face: "Is this what you mean?"
As she spoke, she stretched out her hand, and a thin piece of jade lay quietly in her palm. It was pure white, but inside it seemed as if a red flame was slowly flowing, its whiteness tinged with red, just like her skin.
Zuan took it and felt the lingering warmth of her body on it. She also faintly smelled a fragrance that was neither orchid nor musk, and she couldn't tell if it was Yu Yanluo's body fragrance or the original scent of the jade.
“I’ve never seen it before. I only know that Wuyang Jade is a fire-attribute jade, a rare and precious jade…” Zu’an’s eyes subconsciously glanced at the other person’s lower abdomen. Where had the other person hidden this jade before?
Aside from still blushing slightly, Yu Yanluo had regained her composure: "Then this should be it. This item is the essence of fire, truly rare. I usually carry it with me because I'm sensitive to the cold; it continuously radiates warmth..."
"Huh?" Zuan looked disappointed and shifted his gaze to the box beside him. "Then it seems I've wasted my time."
"What?" Yu Yanluo also looked at the box in confusion.
Zu An thought for a moment and took out a square cloth bag from inside: "When I saw Madam last time, I knew that she was afraid of the cold, so I went back and made this thing. This thing is called a hand warmer. As the name suggests, it can generate heat continuously when placed on the body. Each piece can keep you warm for six hours."
"Warm baby? That's a cute name." Yu Yanluo took it and poked it with her slender finger. "Huh, I don't feel any heat."
"You'll feel it very quickly once it's on your body," Zuan explained.
Yu Yanluo hesitated for a moment, then turned around.
Zuan hurriedly reminded, "This thing cannot be applied directly to the skin, as it can easily cause burns. It's best to apply it through a layer of clothing."
Yu Yanluo's movements visibly stiffened, as if she were making some changes.
After a while, she turned around, her cheeks flushed slightly more than before: "Oh, I really feel hot. You are truly skillful, to be able to make such a girly thing."
"Uh, actually it's not necessarily just for women to use, men can use it too," Zuan explained, not wanting to be seen as a pervert or anything like that.
"This... this hand warmer only lasts for six hours?" Yu Yanluo turned her body to the side, seemingly feeling its heat from all angles.
Zuan handed over the box: "Yes, it will be ineffective after six hours. You can replace it with a new one then. There are still twenty pieces in this box. I only managed to make this many in a short time due to the rush. Make sure to keep this box closed at all times, otherwise the heat packs will become ineffective if they come into contact with air or moisture."
"Thank you, I love this gift. It's the best gift I've received in years." Yu Yanluo's face lit up with joy, as if a little girl had found her favorite toy.
Zu An gave a wry smile: "Madam, there's no need to comfort me. You have the Wu Yang Jade on you, which is much more convenient than this heat pack, and it's effective for a long time."
“Although the Wuyang Jade Tube has been around for a while, the fire element inside will gradually dissipate over time,” Yu Yanluo thought for a moment and asked, “What are these hand warmers made of, and how much did they cost? If it’s inconvenient to say, then don’t. Asking like this is indeed a bit abrupt.”
“Madam, you are overthinking it. There’s nothing wrong with talking about it,” Zuan explained. “The contents are a mixture of iron powder, vermiculite, activated carbon, salt, and other materials, wrapped in a special waterproof and breathable cloth. All the raw materials are relatively easy to obtain; the most difficult part is actually the cloth itself.”
“Iron powder, vermiculite, charcoal…” Yu Yanluo nodded secretly. “These are indeed readily available materials, but in my opinion, the specific mixing ratio is the key. As for the cloth that meets the requirements, there are so many cloth workshops in the world, there must be someone with the skill.”
Zuan was taken aback, realizing he had fallen into a misconception. He had been thinking about non-woven fabric. Although this world didn't have a technology tree, many things in cultivation could achieve similar effects.
At this moment, Yu Yanluo said again: "As for the fact that Wuyang jade is more convenient, I cannot agree. Wuyang jade is extremely rare and precious. Even here, I can hardly find a few pieces. It has no versatility at all."
“But your heat packs are different. As long as the process is simplified, the cost can be further reduced, so that ordinary people can also use them. In addition to keeping warm, they can also help treat rheumatism and various back and leg joint pains…” Yu Yanluo’s eyes lit up as she spoke, “This is a great business opportunity.”
She got up and paced back and forth for a while, then looked at Zu'an excitedly: "Could you hand over this business to me? After deducting all costs and expenses, we can split it 30/70, you get 70% and I get 30%."
When she started talking about business, she seemed to transform into a completely different person. Her previous gentleness and weakness vanished, replaced by the competence of a strong woman.
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