The constant city of Shui nationality is not far from the King City of Shui nationality. It is about four or five hundred miles away.

Chen Hui, the black emperor of Shui nationality and the great wizard of Shui nationality set foot on the road of returning to the King City of Shui nationality early the next morning.

However, the black emperor of the Shui nationality also had a plan. Instead of going back to the royal city of the Shui nationality, he would settle down in several capitals of the Shui nationality and another Hengcheng city on the way.

In this way, the time for people to return to the aqua King City must be correspondingly longer.

However, Chen Hui can understand why the black emperor of the Shui nationality made such an arrangement, because their itinerary, even if known by the green emperor of the Mu nationality, is completely in line with what the black emperor of the Shui nationality put forward when he went to the King City of the Mu nationality.

Of course, the black emperor of Shui nationality did not forget what Chen Hui said. From the royal city where he left, he arranged for warriors to report to the capital of Mu nationality, so that a group of people of five nationalities who followed Chen Hui to learn medical skills could go to the royal city of Shui Nationality to wait for Chen Hui, because Chen Hui would stay in Shui Nationality for a period of time to learn medical skills. If he did not want to delay, he could only go to the royal city of Shui nationality.

When Chen Hui and the black emperor of the Shui nationality rushed back to the King City of the Shui nationality, the civilians of the five nationalities who studied medicine had already been waiting in the King City of the Shui nationality and had been properly arranged.

Before he came back, the black emperor of the Mu nationality had already arranged for people to go back to the king's city and make room for Chen Hui in the king's city.

After all, there are not a few civilians of the five ethnic groups learning medical skills.

Chen Hui's residence is next to the house where Ying and Ya live.

On the day of coming to the Aqua City, the black emperor of the aqua held a grand welcome ceremony in the palace of the Aqua City.

Chen Hui's first visit to the royal city and his first visit to the Royal Palace of the royal city are accompanied by the great wizard of Shui nationality. Naturally, Chen Hui can't help but ask some questions about the Royal City in a low voice.

When Chen Hui came to Wangcheng, just after noon, the banquet for Chen Hui was arranged in the evening. All afternoon, Chen Hui was in the cinema, and Ya was wandering around Wangcheng.

The area of Wangcheng is so large that you can't visit it all afternoon.

However, Chen Hui also has a certain understanding of the area of Wangcheng.

The existence of ethnic settlements is like a small village, with dozens of households of different sizes, just like a friend's ethnic group, which is very small, but less than 100 households.

With thousands of people and hundreds of households, this scale of ethnic settlement shows a sign of developing towards the capital.

This kind of ethnic settlement with hundreds of families and thousands of people can be found everywhere in the world where Chen Hui came. Almost every village can have such a large scale.

The capital is a little bigger. It has a population of almost 2000. The capital under Peng's management is of such a scale.

When it comes to Hengcheng, there are usually thousands of people, just like Chen Hui's solution to the epidemic.

Hengcheng, Chen Hui's solution to the epidemic this time, is not a big one. A bigger Hengcheng has to have tens of thousands of people.

As for the Royal City, there must be at least tens of thousands of people.

These are the main questions that Chen Hui asked the great wizard of Shui nationality.

The contrast is the situation of the five ethnic groups.

According to the answer of the Shui wizard, Chen Hui came to the conclusion that although the cities of the five ethnic groups are different in number, the population is almost the same.

There are about 100000 people in one group. That is to say, the five groups of human beings are only about 500000.

In such a vast world, the population of mankind is only about 500000, which is not enough to describe in terms of vast land and sparse population.

Chen Hui lived in the city of Shui, and continued to teach the five nationalities medical skills.

King City is different from other cities. The King City of the five ethnic groups is changed every day, and there are already coins. According to the news from the black emperor of the Shui nationality and the great wizard, the five ethnic groups and the five emperors are not only committed to popularizing the characters, but also the currency.

Naturally, the five ethnic groups first exchanged currency with each other, and because of this, there were merchants from the other four ethnic groups in the five ethnic groups.

This situation is obviously different from barter, because they are real businessmen.

Although the currency only circulates in the city of the five nationalities, these merchants will buy it with money and then return to their own families for exchange. They can get what they need and make profits.

Thus, profit is always the source of human power.

In addition to teaching medical skills, Chen Hui is also practicing. Although Chen Hui lives in the royal city of Shui nationality, no one is watching him.

In his spare time, Chen Hui will take yingheya to the aquarium King City to observe the local conditions and customs of the aquarium.

Soon, Chen Hui found out that the fact that the Shui people are good at poisons is really not a cover, because the other four ethnic groups come to the business of the Shui people and buy the most poisons of the Shui people.

Chen Hui took yingheya to several families on the street. In fact, these families are shops, because their houses have been transformed into a design similar to Chen Hui's hospital.

Although Chen Hui's medical library is designed as a medical library, it is essentially a shop. There is no doubt about this.

These people's houses were all renovated later. They didn't have Chen Hui's medicine cabinet or anything like that. Instead, they were shops.

Chen Hui also had some money that the black emperor of the Shui nationality ordered people to send. Chen Hui bought several poisons of the Shui nationality with money, had a conversation with the family, and left with these poisons.

"Why buy drugs?" Shadow some don't understand of ask a way.

"Medicine and poison are actually interlinked. To be exact, medicine and poison are interlinked." Chen Hui said: "there are many kinds of poisons of Shui nationality. I want to study what's going on and see what's the difference with the toxicity of medicinal materials!"

Medicinal materials are processed in order to remove the toxicity and only retain the property.

The medicinal materials that are not processed can not be used unless they are in a very urgent situation. It's like the epidemic in Hengcheng of Shui nationality. The medicinal materials used by Chen Hui are not processed.

However, in Chen Huikai's prescription, the medicinal materials in it were adjusted so that they neutralized the toxicity of all kinds of medicinal materials when they were suffering. Even one of them was not processed, which had some effects on the treatment of the epidemic. Chen Hui kept it.

If Chen Hui wants to be like this, his medical skills are not good enough. This is why Chen Hui strictly forbids the five ethnic groups who learn medical skills from him to use unprocessed medicinal materials to torment decoction.

Chen Hui returned to his residence with several poisons he bought and began to carry out research and experiments.