That's right, what Zhang Nan took out was the sanitary napkin known as the friend of women. Although it would be impossible for Zhang Nan to use this thing in his life, Liu Bing could do it.

Although Zhang Nan’s knowledge of this thing only exists in theory, Zhang Nan knows that this thing absorbs a lot of water, and Liu Bing will definitely have no problem using this thing. Not to mention leaking, it doesn’t matter if it’s flooding.

"As the saying goes, there are no wings during the day, move casually, and there are wings at night, so you don't leak. Come on, Lao Liu, take it." After Zhang Nan finished speaking, he handed the guard Shu Bao in his hand to Liu Bing.

"Mr. Zhang, how do you use this thing?" Liu Bing asked with a puzzled look on his face.

"Hey, this is simple, look at it." Zhang Nan said, then took out a piece of it from the box in Liu Bing's hand, then tore a sticker and said: "Press this side that can stick to the underwear and use it like this. Then you can move whatever you want, and you will no longer have to worry about leaking it." Zhang Nan said with a smile.

"Mr. Zhang, you..." Liu Bing also smiled embarrassedly and politely.

"Hahahahahahahahahahahahaha, OK, I have something to do, you can do it." After Zhang Nan said that, he left the palace. Looking at Zhang Nan's back as he left, Liu Bing also smiled.

"This time traveler is really different from other people." Liu Bing said silently in his heart.

Not long.

"Take all the words to Qingquan?" Li Er asked while looking at Zhang Nan's comments on military system reform.

"I will bring you back to the emperor." Liu Bing said.

"Well, did that guy say anything?"

"If you say so, no, but Lord Zhang gave me three pairs of underwear." After Liu Bing said that, he took out the box containing the underwear from his arms.

Li Er heard Liu Bing's words and didn't even look at them, then said, "This guy will win people's hearts."

Hearing Li Er say this, Liu Bing quickly said in fear and fear: "Please check it out."

"Okay, I don't mean to blame you. Anyway, this thing is just a small object, so just take it and wear it. If you really have other thoughts, how could I keep you until now?" Li Er continued to raise his head.

"The emperor is wise." Liu Bing wiped the cold sweat from his head.

"What else has this guy given you?"

"If you come back to the emperor, Lord Zhang also gave the old slave an object called Hushubao." Liu Bing was also honest and did not dare to hide anything. After all, if Li Er really wanted to know about this kind of thing, it would be too simple.

"Hushubao? Take it for me to see?" When Li Er heard that Zhang Nan actually gave Liu Bingxin objects, he immediately became interested.

However, after seeing what Liu Bing had in his hand, Li Er was stunned at first, then laughed, laughing while scolding Zhang Nan.

When Liu Bing saw Li Er's appearance, he was also very confused.

"Your Majesty, why are you laughing at?"

"Hahahaha, this guy Qingquan actually gave you this thing." Li Er smiled and was so angry that he was angry.

"Your Majesty, have you seen this thing?" Liu Bing's heart was relieved as soon as he heard that Li Er had seen this thing. He was still afraid that Li Er would be interested in this Hu Shubao, and then took the thing away.

"I've seen it, I've seen it, of course I've seen it." Li Erdao.

"Oh by the way, didn't this guy say anything else to you?" Li Er continued to ask.

"Other words? Your Majesty, please let Lao Nu think about it. Mr. Zhang really said something, but Lao Nu didn't know what Lord Zhang meant. Lord Zhang told Lao Nu that he had no wings during the day, he would move casually, and he would have wings at night, so he would not leak."

"No way to leak?! Hahahaha, Liu Bing, Liu Bing, you, hahaha, go, go, put on the underwear that Qingquan gave you. Remember to bring this Hushubao with you, after all, Qingquan's will be his heart." Li Erdao.

Seeing Li Er's appearance, Liu Bing hesitated more and more, so Liu Bing said, "Your Majesty, what's wrong with you? You're telling me about it."

"Do you really want to hear it?" Li Er looked at Liu Bing with a puzzled look on his face.

Then Liu Bing nodded seriously.

"This thing is used by women during menstruation." Li Er thought for a while and decided to tell Liu Bing the truth.

"Ah!" Liu Bing suddenly felt embarrassed and blushed when he heard Li Er say this.

"But you don't have to think too much. I think Qingquan has no other meaning to give you this thing. Think about it, even women's menstrual periods will definitely be useful, so he really wants to help you." Li Er explained.

"Yes, what the emperor said is that Lord Zhang must have wanted to help Lao Nu if he can give Lao Nu something like this, he knows it in his heart." Liu Bing said.

"Well, you know."

In fact, Li Er didn't know what this thing was at first. After all, Li Er just heard Empress Changsun say that about Hu Shubao, Cui Yue introduced it to Empress Changsun. After using it, Empress Changsun thought it was good and was promoted to concubines in the harem.

Every month, Cui Yue would be called to the palace by Empress Changsun. In name, Empress Changsun wanted to tell Cui Yue the truth, but in fact, Cui Yue went to deliver the goods. After all, Comrade Li Er's harem has a large number of people, and the monthly dosage is relatively large.

Li Er had only heard of this thing, but had never seen the true appearance. After all, this thing is a more private item for women. Although Li Er was curious, he was not so perverted that he had to take a look.

However, when I heard what Liu Bing said today and thought about the effect, Li Er confirmed that this thing is a new menstrual weapon that is widely circulated in the harem.

After Zhang Nan returned to the mansion, the first thing he did was to lock himself in the study. Although Zhang Nan's study never used for reading, Zhang Nan really wanted to use him today.

Because Zhang Nan planned to build a national stadium belonging to the Tang Dynasty outside Chang'an City, horse racing is just one of the functions. This stadium must be able to accommodate at least 200,000 people at the same time. You must know that in later generations, the largest Marakna Stadium was only 220,000.

But there is nothing else in the Tang Dynasty, it is because it is big, rich, and free labor, so Zhang Nan thinks it is okay to build such a gymnasium.

Moreover, after Zhang Nan planned to establish a gymnasium, he would start to strengthen the physical fitness of the people, so it is imperative to promote sports meets. Moreover, Zhang Nan can make a big profit while taking advantage of the sports meets.

After thinking for a long time, Zhang Nan picked up the Bird's Nest Stadium, and finally got the look of the Bird's Nest Stadium. After all, Zhang Nan still liked this design concept very much.
Chapter completed!