At first, Zhang Nan was a little embarrassed, but in the end, Zhang Nan also let go, anyway, everyone is a man, everything should be there, what else is embarrassing, so Zhang Nan directly took off his shirt, changed into a navy shirt, and then tied a tie, but when Zhang Nan just took off his pants, Li Er asked.

"Qingquan, what's that little dress you're wearing?" Li Er pointed to Zhang Nan's little underwear with patterns and asked.

"This?" Zhang Nan then pointed to his underwear.

"Yes, that's it, why are you wearing such a small dress?" Li Er asked with a puzzled expression.

Ancient people did not wear underwear. In the modern sense, underwear has only become popular in the United States since the 40s of the last world, and has gradually influenced Chinese men. And the invention of underwear is no less significant to men than underwear is to women.

Men in the Shang and Zhou dynasties had no underwear and did not wear pants, but only skirts, i.e., dresses. Nowadays clothes only refer to blouses. The so-called clothes are skirts, and in ancient times, clothes referred to the clothes of the upper body and the skirt of the lower body.

In ancient times, there has always been a tradition of tops and bottoms. The top and bottom have been mature since the Shang Dynasty and became the mainstream in the Western Zhou Dynasty and the Spring and Autumn Period. "Imperial Century": "The Yellow Emperor began to wear leather clothes, for the top to be like the sky, for the bottom to like the earth.

In ancient times, clothes were relatively wide, and generally covered most of the clothes. But if the movement is too large or the movement is not rude, it is easy to show it. As a result, a whole set of etiquette systems based on kneeling and sitting postures were formed. Therefore, in the "Book of Rites", it is proposed that "work is not covered, and summer clothes are not taken", which means that you should not expose your body when doing work, and you should not lift your clothes in summer.

"This thing is not called clothes, this thing is called underwear, and it is specially designed to protect our most precious places." Zhang Nan said with a smile.

"Isn't this just a layer of cloth? What is there to protect? Li Er asked strangely.

"Hey, Your Majesty, this is about physiological and hygienic knowledge, but since everyone is a man, then I don't have anything to say badly." After Zhang Nan finished speaking, he said: "I want to say that our little brother is the most precious place for our men, presumably everyone will not deny it." ”

When Zhang Nan said this, although the ministers felt a little ashamed to speak up and insult Sven, they had to admit that the meaning of the little brother to a man was more important than life.

"You have nothing to be embarrassed about, the so-called harmony of yin and yang, since this is where our yang energy is, then we naturally have to hold it around and prevent the yang energy from dissipating, do you know what will happen once the yang energy is dispersed?" Zhang Nan said.

Hearing what Zhang Nan said so formally, he actually had a yin and yang harmony, and everyone shook their heads with a solemn face.

"Once a man's yang energy is leaked, it can have a significant impact on the birth of offspring, sometimes, if you can't give birth to a child, it's not just a woman's problem, but also a problem that may appear in our men." Zhang Nan said with a heavy face.

"Ah, that's the case, it's the first time I've ever known."

"Yes, yes, no wonder I have so few heirs, it turns out that it is the reason for the leakage of yang energy."

“......”

Zhang Nan can only say this, if Zhang Nan tells them that not wearing underwear will cause varicose veins, they must not understand, so it is better to say so.

Li Eryi's face was also heavy when he heard this, although he has many heirs, but who doesn't want more of his own children?

"Do you really want Qingquan to say that?" Li Er asked.

"The minister doesn't dare to deceive the emperor, and this thing, the sooner you wear it, the later you wear it, the more yang will be discharged, of course, this underwear should not be too tight, too tight will cause yang energy to not come out, too loose will lead to yang leakage, so, elastic material is the best."

Zhang Nan said, and pulled his underwear with his hand, and soon, the underwear was tightly attached to Zhang Nan's body.

"But now Datang doesn't have this kind of material, so this underwear, only the ministers have it here, do you want to have one, Your Majesty?" Zhang Nan asked with a smile.

"What do you want? Aren't you talking nonsense? Hurry up and give me a ten-eight-strip, no, it's one hundred and eighty, I have to change it every day to ensure that my yang energy does not leak out. Li Er glared.

"Your Majesty, there are not so many underwear, just a few pairs of underwear to be washed." Zhang Nan said helplessly.

"Fart, can I be like a normal person? Hmph, I see that Qingquan you just fell into the eyes of money, I'm afraid I won't give money, you don't plan to give me, Liu Bing, quickly go to my inner library and get a box of gold for Qingquan this guy, I don't just have to wear it myself, my princes, no one is missing, tonight I have to check whether they are wearing underwear or not, this is something that affects our descendants of the Tang Dynasty, don't be lazy. Li Er commanded with a serious face.

"Yes, the old slave will go." After Liu Bing finished speaking, he ran out of the Taiji Hall with a smoke.

"Alright, Qingquan, you hurry up and bring me one to put on first." Li Er's appearance couldn't help but make Zhang Nan feel amused for a while, as if Li Er's yang energy was about to be exhausted.

"Eh, your majesty, wait a minute." After Zhang Nan finished speaking, he changed out a golden dragon four-cornered panties from the system, and then handed them to Li Er, who hid the underwear behind him, and then walked off the dragon chair and went to the apse of Taiji Palace.

As soon as Li Er left, the courtiers rushed towards Zhang Nan like crazy, and soon surrounded Zhang Nan.

"Qingquan, hurry up and bring me one, I'll put it on first, and you can prepare dozens of more for me later, and I'll go to your house to get it later." Cheng bites the golden road.

"Qingquan, such an important matter, you actually said it now, you are really disappointed by your father." Cui Shao looked distressed, as if Zhang Nan had done something hurtful.

"Qingquan, the old man is old, if this yang qi is leaked for a few more years, I'm afraid he won't live long, so you better give the old man one first." At this time, Kong Yingda also rarely said, what insults Sven, it can't compare to his own health.

"Qingquan, this Keming is still recuperating in the house, you give me his one, and I will bring it to him in the court." Fang Xuanling said with a serious face.

“......”

Zhang Nan looked at the courtiers who wanted to put their underwear on their heads, and they were also helpless, but they were helpless, Zhang Nan still distributed the underwear to everyone one by one, and everyone wanted to find a place to wear underwear at first, but they found that there was no, so they all ran to the corner of the wall, and picked up their clothes in front of the wall and put them on.

The Taiji Hall suddenly formed a beautiful landscape.