After hearing about Ma Wengan's work, Li Xueyi, who was supervising the construction of the railway, hurried back and warned Li Yu not to participate in their brothers' affairs. He was not optimistic about what the use of Li Er's regaining military power. Isn't all his rights given by Li Yuan?

"Son-in-law, you'd better not participate in their brother's affairs, otherwise the princess will be hurt. I heard that you are very close to the King of Qin." Li Xueyi said: "The possibility of the King of Qin taking power in the future is not high. If the prince offends the prince and is removed from the title of princess in the future, the prince will definitely not do this evil man. How can you marry a lady?"

"It's awesome to marry a wife and give birth to a princess's house." Li Yu said to himself: "It makes me feel awkward if I hear it, let alone make me a vassal of others?"

Li Xueyi laughed loudly after hearing what Li Yu said about marrying a princess, and said, "Son-in-law, that's for others. The Miss's incident will definitely not happen to you, right?"

When Li Yu heard this, he shook his head and said, "It is impossible. The rules of our family. No matter what kind of woman you are, you must marry into our Li family. I don't want people to think that I am a person who is a stingy person."

Li Xueyi knew that some princesses believed that they were the emperor's daughter and had noble status, so they often regarded their parents-in-law as "subject" and as members of the family. This mentality often caused their parents-in-law and their son-in-law to feel a sense of grievance. After the princess got married, she set up a princess's mansion, and the son-in-law was just a vassal in the mansion. Although Li Yu's parents were not around, would they be willing to be someone else's vassal with Li Yu's ability?

If a lady wants to marry a woman like an ordinary woman, the title of Princess Pingyang must be removed and the title of Princess Pingyang must be taken back. However, the emperor is willing to be this evil person and will remove the title of Princess Pingyang. Moreover, the title of her own lady is completely different from that of others. She has made great contributions to the Tang Dynasty.

Li Yuan must not be able to do it, only the next emperor is possible.

Li Xueyi followed his lady and watched her grow up from the age of a girl. He was unwilling to let the lady follow Li Yu without any fame. He heard that Li Yu was approaching Li Er, so he hurriedly ran back and warned him not to get too close to Li Er. If he offended the prince, he would become the emperor in the future and let him issue an imperial edict to make this special case.

Li Yu smiled and said, "Don't you be nervous. Isn't your lady already living in a villa now? Just like my own wife, and don't you call me a son-in-law?"

Li Xueyi immediately blushed and said, "What's the use of living in a villa? This matter cannot be announced, otherwise the lady's innocence will be ruined. Do you want the lady to follow you without any reputation?"

Li Yu waved his hand and said, "I don't think so. The battle between the prince and the King of Qin is getting more and more intense. Although the prince seems to have the upper hand now, the King of Qin will definitely turn the tables in the end."

Li Xueyi and Zou Zou browed and said, "So what if the King of Qin turns the tables? What if he agrees to be with you like His Majesty, but he is unwilling to remove the title of Miss?"

Li Yu just smiled and said, "That's simple! Whoever supports removing your lady's title and marrying me as a wife, then I will support who will be the emperor. There are more people in the Li clan who want to be the emperor. Then your lady will have nothing to say at that time."

If he did not interfere with this history, the Xuanwu Sect Incident would be almost inevitable. By then, Li Er would definitely need more support from others to kill his brother and imprison his father, and Li Xiuning would be the first target he wanted to fight for. At that time, Li Er would probably compromise.

After hearing Li Yu's words, Li Xueyi didn't say anything. He knew that this guy could do it easily, and Li Xueyi didn't care who was the emperor, so he didn't have any connection with him. Finally, he told Li Yu that the Detachment of Women had changed his clothes and that the Air Force had been established.

After hearing the construction of the Detachment of Women's Army, Li Yu did not express his opinion, but asked: "How long will the railway be completed?"

When Li Xueyi heard about the railway, he immediately said happily: "The sectional construction you mentioned is several times faster now, and it is estimated that it will be completed in two months. The main reason is that the construction of bridges on several rivers has slowed down the project. However, the bridge repair experts you sent are very capable. They have already completed the piers in a short while and should be opened to traffic before your wedding..."

After more than a month of adjustment, Li Xiuning returned to her former willful personality and no longer mentioned the mechanization of the Tang Dynasty. Today, she asked the Changsun family to play at home.

"Come to your house again and have a meal." Changsun looked at Li Yu who was coming down from the upstairs with a smile on his face.

"I'm happy to come here to eat every day!" Li Yu's words were meaningful.

However, a hint of loss appeared in Changsun's eyes, and then he took out a small jade bottle and poured out a pill and swallowed it into his abdomen.

Li Yu couldn't believe his eyes. He saw that what Changsun just took was actually an ancient legendary elixir. This was not a elixir in the cultivation world, but a toxic elixir refined by Taoist priests of the Tang Dynasty.

For a moment, he felt that he didn't know what to say, nor did he know what to say. Did Queen Changsun die of poisoning in history by taking pills? The main ingredient of this kind is metal mercury. To put it bluntly, it was also the earliest cosmetics ingredient. It only had a temporary effect. As for what other pills were, Li Yu didn't know. But to sum it up, this is not a good thing, but a life-threatening thing.

Li Yu looked at Li Xiuning and suddenly scolded loudly, saying, "Li Xiuning, you didn't stop her when you saw what she was eating. Don't you know that this thing is poisonous and the chemistry you learned is useless."

Li Xiuning suddenly heard his reprimand and was shocked, with a grievance on her face and said, "All the powerful people in the Tang Dynasty are eating it, and I have never eaten it. How do I know what the ingredients are inside."

Li Yu had a sneer on his face and said, "Others spend money to prolong their lives, but you actually spent money to make money to kill them, which made me speechless."

"Is the pill we took really poisonous?" Changsun was shocked and at a loss.

Li Yu nodded and said in a deep voice: "You treat the pills as treasures, which are actually a heavy metal. If you take them for a long time, you will definitely die. Although people will be excited for a while after taking them, these pills are slowly eroding your body."

Changsun's face was pale and said in a panic: "Is this alchemy technique one of the chemistry I've seen before?"

"I think you are not confused yet, and you still know what those things are. Since you have seen chemistry, why do you still eat this without science? It's really strange." Li Yu looked at her beautiful eyes with his eyes.

Changsun's face was embarrassed and whispered: "Actually, I just read something strange. I didn't understand the content in the book at all."

"Chemistry is actually to change the original properties of one or several substances through certain methods. It is called chemistry." Li Yu explained the principle of chemistry.

Li Yu saw Changsun's confused eyes, smiled, and said: "These methods include a variety of methods, such as distillation, dry distillation, dissolving, etc. These are all to make it undergo chemical reactions and generate a new substance."

After hearing the explanation, Changsun suddenly realized, his eyes were filled with glory, and he smiled and said, "Oh! Speaking of which, this pill seems to be the case!"

"These substances, indefinitely change, have been discovered after many years. However, these substances have different characteristics and different applications. They are like this glass." As he said that, Li Yu pointed to the glass cup on the window.

When Li Yu saw that she seemed to understand, he said, "This is chemistry. Putting in several different substances to produce a brand new substance. Didn't you say that these things were water jade before?

"The material in this world is really magical! Today I have increased my knowledge." Changsun's eyes lit up.

Li Yu continued: "The elixir you just took contains heavy metals, especially mercury. The main formula in the elixir is cinnabar, that is, mercury sulfide. Taking a little mercury has certain effects, but taking it for a long time will inevitably cause serious damage. The final symptoms are..."

"What are the symptoms?" Before Li Yu could finish his words, he was interrupted by Changsun.

Li Yu stared at her eyes, gloomy, deliberately scaring her: "Mental disorder, teeth falling off, and body joint pains continue, and eventually die."

"Sometimes my joint pain is endless. It's not that I'm poisoned, right?" Changsun panicked.

Li Yu waved her hand and told her to stay calm. She smiled and said, "Don't be afraid. You can eat more tofu and milk in the future. Just slowly excrete the heavy metals in your body."

Speaking of this, Li Yu finally added: "Don't take these pills in the future, otherwise they will be desperate."

Changsun nodded quickly and said, "I'll listen to you and I won't take those poisonous pills anymore in the future."

After saying that, Changsun felt that his words were ambiguous and suddenly blushed.

"Li Yu, my father also eats it. She has been eating it for many years. What should I do?" Li Xiuning was anxious and uneasy.

"What can I do if your father likes to kill himself? I can only follow the method I just said. I can't help with anything else, let alone why should I help him?" Li Yu shook his shoulders, with no expression on his face.

Li Xiuning was anxious at the time, stared at Xing's eyes and said, "Isn't it just my father sent someone to assassinate you? Aren't you doing anything?"

"That's because I'm very skilled, otherwise can I sit here safely now?" Li Yu asked with his eyes wide open.

"But you destroyed the elite guards of our Li family, you..." Li Xiuning said here, and saw a pair of round eyes with their eyes wide open and quickly covered their mouths.

"Sister, what are you talking about? Did the father really send someone to assassinate..." Changsun quickly covered his mouth and pointed at Li Yu.

"No, no!" Li Xiuning refused to admit it.

Li Yu just smiled and didn't answer any more.

The smart Changsun family has a brilliant look in their eyes.

(The second update, today's update is here, see you tomorrow.)
Chapter completed!