Li Qiji looked at the group and said, "Your Majesty, my brother, has arrived. You ministers should go home now. I will consider this matter further."

"Yes, Your Majesty, we take our leave!" The ministers stood up in unison, bowed and clasped their hands in greeting to the Emperor.

Li Qishang walked in casually and swaggered in, and before he even saw the Emperor, he started shouting loudly.

"Brother, it's done! I'm so happy..."

"Your humble servants pay their respects to the carefree king."

"Oh, it's so lively! Are you gentlemen discussing matters with my royal brother? Should I come back later?"

The ministers were terrified and quickly ran towards the door, not wanting to see the carefree prince even once.

"Hey, why are we running so fast?"

"Oh, Prime Minister Su is here too? But I haven't seen Prime Minister Su in a long time. I heard he was ill?" Li Qishang said, looking at Su Xu who was walking at the back.

Su Xu looked at the dazed Prince Xiaoyao and a faint smile appeared on his lips as he said, "Thank you for your concern, Your Highness. I am fine!"

"Oh, goodbye then, Chief Minister Su! I'm off to find my imperial brother..."

Su Xu smiled faintly, watching Li Qishang walk into the Imperial Study, lost in thought.

"What are you yelling about? You have no manners at all!" Li Qiji said, looking at the man who had come into view.

Li Qishang chuckled and scratched his head, then opened his folding fan with a whoosh, plopped down on a nearby chair without any regard for appearances, and said cheerfully, "Your Majesty, I have brought you a good thing."

"What good stuff?"

Li Qishang nodded, and Shang Yao, who was following behind him, placed the tray in front of Li Qiji's dragon table and then lifted the red cloth covering it.

Li Qiji looked down and his handsome eyes widened instantly. He reached out and touched it, feeling that the weight and thickness were acceptable. He looked at his younger brother, who was sitting there casually, and asked, "Is this done?"

"Hmm, I even showed it to my sister-in-law first. She said this is the thickness that's used on windows, and she told me to make more tomorrow so that I can replace all the window paper in the Cold Palace's courtyard with this kind of glass."

"Did she really say that?"

“Yes! So, my brother, my sister-in-law is really amazing. She even managed to come up with this. Oh, and she also said that we should memorize this and then burn it. I couldn’t bear to do that, after all, it’s my hard work. So she asked me to come to you and ask you to be in charge of burning it.” Li Qishang recalled what Guan Zhiyue had told him in the evening.

Li Qiji stepped out from in front of the dragon desk and stood in front of the chair, asking, "What needs to be destroyed?"

Li Qishang pointed to a notebook that Fugui was holding. Li Qiji reached out and took it, then flipped through it. His brows furrowed more and more as he read, thinking that the Empress was indeed cunning and that this thing must be destroyed.

“Your sister-in-law is right. This thing must be burned. If it’s left, it will be discovered sooner or later. So I’m here to destroy it.”

Seeing that his elder brother had said so, Li Qishang said nothing more and then said, "Brother, quickly memorize this last recipe. I have already memorized it, otherwise it will be destroyed later, and you won't know that."

Li Qiji also looked down and read it. After about the time it takes to drink a cup of tea, he had memorized it all and asked Hua Quan to bring over a brazier.

"Hua Quan, go and bring in a brazier yourself. I need to burn some things," Li Qiji said to Hua Quan, who was standing to the side.

After bowing respectfully, Hua Quan walked out of the Imperial Study.

"You've worked hard these past few days. You can ask me for any reward you desire," Li Qiji said, looking at the notebook in his hand.

Li Qishang shook his head and said, "I don't want anything. I just want to know how long it will take for us to promote this glass product. Then we can open another shop."

"My sister-in-law said there are many glass products that can be sold in the shop, as well as glass windows and such. She also said that the windows of the main hall in front should be replaced first, so that the ministers can see them when they come to and from court."

"Replacing the windows of the Golden Palace with glazed tiles will indeed allow the ministers to see the palace."

Li Qishang replied with a smile, "Yes, that's what my sister-in-law said too. She said that all the civil and military officials go to and from court in the Golden Palace every day, so they must be able to see this window. The value brought by this glass is something that those ministers must really want to buy. Then I can go to the street to buy a shop and renovate it. I'm sure I can sell the glass in a big way."

When Li Qishang said these words, he himself was unaware that his eyes were shining and his face was smiling. His bright and dazzling appearance made his own brother feel a little jealous.

"Qi Shang, do you have a good relationship with the Empress?" Li Qiji suddenly asked.

Li Qishang didn't know what his brother meant, but he still smiled and said, "Your Majesty is very capable, and I admire you very much. So it's natural that I'm closer to you."

Upon hearing his younger brother's words, Li Qiji felt a slight displeasure for some reason, but he didn't know where to begin. This made him feel uneasy. Was he sick? Or what was wrong with him?

“Your sister-in-law is indeed remarkable. Not only can she make glass, but she can also make waterwheels that benefit the country and its people,” Li Qiji said slowly.

Li Qishang had been busy with the glass matter lately and hadn't had time to pay attention to what good things his sister-in-law had done. Now, when he heard his brother talking about it, he couldn't help but ask when Hua Quan walked in carrying a charcoal brazier.

"Your Majesty, this servant has brought the brazier."

Li Qiji looked at the charcoal brazier, its color indistinguishable from the burnt charcoal, and said, "Put it aside and go get a tinderbox."

Hua Quan took out a tinderbox from his person, and Li Qiji took it from him. Then he squatted down by the brazier and tore off pages from the notebook in his arms and threw them into the brazier.

Li Qishang watched as the data he had painstakingly recorded every day was destroyed bit by bit. The scorching firelight shone on Li Qiji's face, as if coating him with a layer of Buddha's halo.

"Qi Shang, have you memorized all of this?"

Li Qishang nodded and gave a soft "hmm," without saying anything more.

Li Qiji smiled and said, "As long as you remember it, you will be able to create the finished product no matter what happens in the future. Destroying this thing is also to make the glass products unique in Nanding Kingdom."

"Yes, Your Majesty, I understand. I will take my leave now..."

Li Qiji nodded, watching his younger brother leave the imperial study, while he himself squatted by the brazier, burning paper scraps one by one...