Back in his room, this is the only time when Zhang Hongbin can completely relax.

This is a hard indicator for himself, only in his bedroom, he is not allowed to think about anything else related to work. He knew that at his age, if he had to think about those issues even when he was resting, he was afraid that he would be a second Yongzheng ...... It's good that someone else Yongzheng also lived a lot of years before he ascended the throne, maybe he really died of natural old age?

"Young master, the slave maid will wash your feet." Haruka habitually brought a hot tub.

"Yes, okay!" Zhang Hongbin touched Chunxiang's head according to the old rules, indicating that he was well-behaved.

Haruka enjoyed this time, and in her opinion, this was the young master's favorite of her cousin. As a roommate, her fate was actually doomed. If the young master accepts himself, it's fine, but if he doesn't...... That's the real boudoir sex aid, isn't that a 'miserable' word?

The hot water is not hot, or the water temperature is just the temperature that you are used to, and it is actually a rare enjoyment to simply massage after washing your feet. It was only at this time that he felt that he was finally a privileged class, not a servant of the people.

I always feel that since I came back from the crossing, I can't say that I have completely treated myself, but this day is still a little bit worse than being happy.

There is no shortage of enjoyment, and there is Liu Ru in the study to serve closely; In the bedroom, Chunxiang can take the room at any time, and even if something happens in advance; In the hall, you can tease Ruan Cunzhu Nan Nizi. As for food and daily necessities, that is beyond the reach of anyone in this era.

So, what do you lack? Seriously, Zhang Hongbin doesn't know what he's missing.

Perhaps, is there a lack of a few relatives with whom you share this qiē? Whether it's this era or that era...... Children are not filial......

"Young master, but the slave and maid are not well served?" Haruka's panicked voice came.

"Go on, it's okay...... It's just that I miss my dad a little bit. Zhang Hongbin leaned against the head of the bed and said with his eyes closed.

"If we take all the old ladies to live, according to our power, even if they come to live, it won't have any impact." Haruka said with a smile.

"Yes...... It's not the same situation as before. With my current reputation, I'm afraid that those brocade guards in the imperial court will always find out my true identity. Instead of letting my father and mother become their hostages at that time, it is better to take them back and live there first. Zhang Hongbin thinks about it and thinks it's such a truth.

Ignoring Chunxiang's hints, I don't know how many times Zhang Hongbin refused. Chunxiang's girl is still very good-looking, but she is still young, and at this time, there is no meat in front or behind, and there is always a sense of not being able to enjoy it. It's better to wait a few more years and enjoy it.

Although he wanted to forget about work, Zhang Hongbin subconsciously connected to the system and entered the supermarket interface.

This is a habit he has developed in the past two years, and he has to check the existing materials in the supermarket again and again to confirm what can be applied to what field. For example, sulfur, saltpeter and charcoal are packed separately, but they can be purchased in large quantities. Taking these things out and grinding them according to a certain proportion is black powder, and then processing them is granular powder. Therefore, if you ignore these three raw materials from the beginning, it is a kind of Lang fee.

Not to mention the oil drum, if you use it to remodel, it's a good conscience cannon. However, the cannon without conscience also consumes gunpowder very much, and saltpeter and sulfur are not easy to get here in Shaanxi, so gunpowder is still used sparingly. This is also the reason why Zhang Hongbin has not expanded the artillery battalion.

The second floor is full of simple things, in fact, except for meat and rough sausages, it has always been very popular with the soldiers, and the wine in the luxury area is also very popular with the ministers of civil and military affairs, at this stage, the second floor is actually not necessary to continue to pay attention.

However, the goods on the third floor, that is, the tertiary supermarket, have a lot of value. There are binoculars that can be used in the military, books on how to make the most advanced handmade looms, and other relevant knowledge related to basic industry and agriculture. And the weapons here are the main equipment of the Salvation Army at this stage.

As for the fourth layer, many foods that even Zhang Hongbin has never seen are relatively rare. The rarest thing may be the five areas that have not been opened, Zhang Hongbin originally planned to open the luxury area as soon as possible, relying on those luxury goods to earn consumption.

After checking his consumption, it was just 10,000 taels, which meant that he could open one of the areas.

He didn't open the luxury area, but he opened the book area.

Yes, no matter how good the luxury goods are, the accumulation of consumption is also destined to have a very narrow scope of application. But knowledge is different, even if you don't use it, you can leave it to future generations to learn, this is the so-called 'cultural heritage left by predecessors'!

The most important thing is that he has realized the necessity of developing his own industry, and the most important thing to develop this thing is the accumulation of technology. He can't wait for ten or even decades of technology accumulation, so he hopes to be able to find the books he needs in the book area of the fourth level.

"Open the Book Zone!" Zhang Hongbin read silently.

"Identify the user's consumption, meet the consumption, and open the book area......" The formulaic voice of the shopping guide came.

With a rumbling sound, the unopened area was finally opened.

It's still the same as before, with five huge bookcases. The first bookcase is full of books on politics and economics; the second is books on agriculture and medicine; the third is a book on military affairs and education; the fourth is books on entertainment and classical classics; The fifth is the books on physics and chemistry that I need.

One of the most interesting things about these books is that they are all wire-bound books, which are very similar to the books of this era. The only difference is that there are extra punctuation marks in it. Except for the technical books that require illustrations, which are read from left to right and from top to bottom, the others are written from top to bottom and from right to left in the traditional Chinese way. Even the content of the book has been revised in detail, and some historically sensitive words and words related to the origin of the exposed books have all been harmoniously treated.

According to the shopping guide, this is to facilitate buyers to buy and sell directly without additional modifications. This is understandable, if Zhang Hongbin buys a book, and then takes it for review and then prints and sells, the result is that all the books here are sold at one hammer. But if you write in this way today, you can buy here indefinitely, without the need for patience to review and print.

Businessmen always need to maximize profits, fortunately, the price of these books is not high, and it will indeed be cheaper if they are printed in large quantities, but Zhang Hongbin does not plan to let these books leak, so he buys them all in the supermarket, which is also good.

He bought one before and after, he won't worry about overlapping with the books below, in fact, the books on each layer are different, from shallow to deep, and the knowledge is constantly improving. Nowadays, the fourth level of knowledge is in many ways the peak of that era, but some of the industrial technologies are still in the seventies of the twentieth century.

It can be seen that this is deliberate, Zhang Hongbin does not know which era the manufacturer of this system comes from, but in order to be able to continue to make money, the most advanced technology will never be sold, and now reducing the provision of advanced technology is also a means.

"That's right!" Back in the real world, Zhang Hongbin is already surrounded by books.

"Young master, your name is slave...... When did you buy so many books again? Liu Ru came in a daze ten minutes later, and it looked like she should have hurried out of her bedroom, but when she saw the books in the room, she couldn't help but exclaim.

"I just bought it, but the other party has put a lot of effort into buying me a lot of good books!" Zhang Hongbin smiled and patted the pile of books beside him.

"The slave family will arrange for someone to tidy it up, and strive to put it in the library as much as possible." Liu Ru said excitedly.

A talented woman deserves to be a talented woman, as long as she has time, Liu Ruyi likes to soak in the library of the same state. This is a library that was moved from Huanglongshan, and was originally moved from Zhang Hongbin's Xishan Annex. Over time, the library has grown to include more and more books, and the wider the knowledge it covers.

This is a library that is not open to the public, and only those who have Zhang Hongbin's permission can go in and browse for a day. Of course, Liu Ru is an exception, she is the director of this library, and she is also responsible for the daily maintenance of this library, so as long as she is not on duty, then she can freely enter and exit this library and indulge in the ocean of knowledge.

The next day, Lao Mu was called to Zhang Hongbin's mansion, and at the same time, three books were handed to him directly.

"It's a way of making steel, and it describes how to build a furnace, how to make coking, and how to make steel. I remember that you should be literate, you will stay here for the next few days, when will you give me the knowledge above, and when will you go back to work. Zhang Hongbin pointed to the three books and said to him.

"Subordinates obey!" The old wood stroked the three books like a treasure.