Wan Qingsi and Bai Ruofei nodded as if they understood, but they still looked at the maid's pink dress reluctantly.

"Don't look at it anymore. There are many better-looking clothes in this mall. Let's go in and take a look."

Long Junhai quickly pulled his two women who had never seen the world to go shopping in the mall. The mall was really not small. Although it was a shop, it was already the largest shop on the street. It could be described as a plaza. There were nine floors in total, and they had everything for food, clothing, housing, transportation, and cultivation. However, the prices were extremely high, at least 30% higher than other businesses on the whole street. However, there were still a large number of customers coming to buy. Perhaps it could be said that this already had some brand power.

The most attractive product for women is always clothes. People can change their appearance through practice, and even their height, weight and body shape, but there is one thing that cannot be changed, that is, they still have to wear clothes when going out.

Of course, it is very simple to use fairy energy to change your clothes, and various styles can be changed at will, but the things condensed by fairy energy are not physical objects. People of the same level can see the clues at a glance, and in front of masters with higher realms than yourself, it is equivalent to not wearing clothes.

Therefore, clothes are necessities, and the people of the Tang Empire have long developed a deep-rooted consumption mentality. The people here do not look like monks at all, but rather like ordinary people. They have three meals a day, work from nine to five, and there are entertainment venues with bright lights and wine everywhere. Although their realm improves slowly, people live very comfortably and fulfillingly.

After Long Junhai accompanied the two women to carefully select two sets of clothes, they prepared to check out and leave. After all, their destination was to go to Chang'an, so they could not stay here for too long.

Women are really hard to understand. Long Junhai had clearly promised the two of them that they could buy whatever they wanted as long as they liked it, but Wan Qingsi and Bai Ruofei always struggled to choose various clothes. After choosing dozens of pieces with painful looks on their faces, they were only willing to buy one of them in the end. This made Long Junhai very confused. Maybe he couldn't feel the fun in it?

However, when checking out, something happened that made Long Junhai speechless, because the shops here did not accept fairy jade at all. They all accepted the unified Datang Tongbao. One Tongbao was equivalent to a piece of top-grade fairy jade. This was the smallest denomination. Any larger denomination required Datang Baochao, which was a special paper currency with the portrait of the Emperor of the Tang Dynasty printed on it. It was very similar to the paper currency used on Earth before.

Long Junhai was helpless. Finally, with the help of the maid, he realized that he had to exchange the fairy jade on him for Datang Tongbao or Datang Baochao first.

This shop has a special place for exchange. Long Junhai does not have many top-grade fairy jades on him now. He is not familiar with the Tang Dynasty treasure notes, so he exchanged them for 10,000 treasure notes with a face value of 100 yuan, which is equivalent to 1 million Tang Dynasty Tongbao coins, that is, 1 million top-grade fairy jades. However, this 1 million treasure notes is not a lot in the Tang Empire. Ordinary people have almost this much property. The slightly richer ones have around 10 million. The rich people in some wealthy families are worth hundreds of millions. Otherwise, it is impossible for them to live in a place with expensive prices like the Tang Empire.

The two sets of clothes that Wan Qingsi and Bai Ruofei bought cost more than three thousand treasure notes. They spent more than one thousand treasure notes on a meal, and bought some jewelry, spending tens of thousands of treasure notes. At this rate of spending, Long Junhai and his friends would have spent all their belongings in a month or two.

But Long Junhai was also puzzled. Why did the people here use treasure notes instead of immortal jade? How would this help their cultivation? Could improving their strength depend solely on three meals a day?

Long Junhai felt that this was not possible. Although the food of the Tang Empire tasted good and the various immortal auras contained in it were basically comparable to elixirs, if one relied on eating to improve his strength for a long time, a large amount of toxic residues would accumulate in the body, and even affect future breakthroughs in realm.

So how did the people of the Tang Empire improve their realm? There must be a special secret!

After Long Junhai and his two companions had been touring the border for a few days, they immediately used the teleportation array to rush to Chang'an. However, the cost was very high. The teleportation fee for each person was 100,000 Tongbao, which instantly reduced most of the money they had.

Once in Chang'an City, the expenses became even greater. Three ordinary meals a day would cost thousands of Tongbao, and the minimum standard for a single consumption in a high-end restaurant was tens of thousands. There were countless people who spent millions of Tongbao in major restaurants every day. Compared with others, Long Junhai suddenly became a pauper.

"Husband, it's too expensive to stay in a place like this. Any restaurant or inn costs thousands of tongbao. Even if we live frugally, we still have to spend tens of thousands of tongbao a day. How come the people of the Tang Dynasty are so rich?" Wan Qingsi asked very depressedly.

Long Junhai smiled and said, "Business is thriving here. Despite such a vast territory, there hasn't been any unrest. The entire country is engaged in business, and capital flows very quickly, so everyone is very wealthy."

"Then how do we live here? Do we have to do business to earn Tongbao? But what's the use of earning Tongbao? This thing can't be used for cultivation at all?" Wan Qingsi asked.

"I'm also puzzled. We don't know much about this place, but the people here must have their own methods of cultivation. We have to find a place to learn from them." Long Junhai said after thinking for a while.

"But it's such a big capital, where can we go to study?" Bai Ruofei asked in confusion.

"The history books here should have relevant records. We can go to the library here to take a look." Long Junhai had just seen a library on the street and now he took the two women to take a look.

"Library? What is that place?" Wan Qingsi and the others usually used jade slips for cultivation, so they had no idea what a library was for.

"The books in the library are equivalent to the jade slips we usually use, except that the contents of the jade slips can be directly imprinted in the soul, while the books in the library need to be read bit by bit." Long Junhai said with a smile.

"Wouldn't that be very troublesome? Why didn't the Tang Empire, such a prosperous empire, use jade slips to record the contents of the exercises?" Wan Qingsi asked curiously.

"I'm not sure. Maybe there's some special reason." Long Junhai didn't understand it either, so he took the two of them to the library first.

Long Junhai and the other two soon arrived at the gate of the library. The plaque on the gate had five big characters "Tiandao Library" written on it, which looked very grand.