A group of naval fleets were fooled by Katerin for two days. After knowing that this would not only waste time, but also waste a lot of manpower and material resources, the empires of major kingdoms temporarily gave up.☆→

Facing a city that can dive at any time and is astonishingly fast under the sea, they have no choice.

They also thought that after Caterin diving, they would immediately let soldiers who were good at diving diving into the sea to attack, but found that they could not get close to Caterin at all.

Although they wanted to occupy Caterin immediately, facing Caterin's powerful diving ability, they had to give up and talk about it later.

The eastern part of the Holy Sea finally returned to peace, and the pirates in the eastern seas couldn't help but breathe a sigh of relief.

Then the surviving pirate group discovered that at least half of the pirate group in the eastern waters had been affected, and now is a great time for development.

And where it is not too far from the Black Flag Pirates' activity area, Katerin floats quietly on the sea.

After this incident, Katerlin's population was hit hard again. The NPCs that had previously entered Katerlin had 80% escaped Katerlin before the war. Katerlin's population attributes fell to an extremely low point.

But Chen Mo didn't care. Now is the time when Katerlin really started to develop.

Those who escaped from Katerlin may now begin to regret it. After this incident, Katerlin will soon be known to everyone on the Holy Continent.

After Caterin's system is improved, it will be filled with people as soon as it is opened. It can be as crowded as possible.

During the two days of being chased at sea, there was not much to do. Chen Mo just did one thing, which was to build a large library.

The books moved back from the Undersea City have not had time to deal with before, so Chen Mo simply built this library while he had time in the past two days.

After all, life on the sea is no more than land, and there are not many places to go. It will be much more convenient to have a library here.

Enoch, Fatira and Yuji all agree with the establishment of the library.

With so many people hoping, Chen Mo naturally needs to complete it as soon as possible.

"Okay. Finally finished."

There is a special library management system in Katerlin's urban system. Chen Mo built a library, moved all the books into it, and then made relevant settings on the library management system one by one, and the system prompts that the library has been established.

"Sir Adventurer, I have asked Tana to help adjust the city diving system. After this adjustment, the energy consumption of the system will be greatly reduced. Of course, if you continue to move quickly in the deep sea, the energy consumption will still be huge, but it is just still, and the energy consumption is even lower than the original Undersea City."

When Chen Mo celebrated the establishment of the library, Otto and Tana also came to report.

The urban diving system is quite complicated, and fortunately Otto is there, otherwise Chen Mo would have no use even if he got the urban diving system.

Although the city diving system was able to be used before, it was installed on Katlin in a hurry. In a hurry, there were naturally many problems.

And in the past two days, after continuous testing, Otto finally adjusted the city diving system to a very perfect state.

Chen Mo has been using the urban diving system these two days. In addition to letting those kingdoms give up and helping the Black Flag Pirates get rid of their competitors, he also has the purpose of testing and adjusting the urban diving system.

"very good."

Chen Mo nodded. The urban diving system is no longer a problem, and there is a sky tree in it. The urban flight system can also be used, but there are not many functions at present.

System prompt: The city has both an urban submersible system and a city flight system, and meets the requirements 2...

System prompt: Props detection...has a certificate of qualification!

System prompt: Identity detection...non-assessment target!

System prompts: Meet special conditions 3, the special development route is opened...

When Chen Mo opened the urban diving system and the urban flight system and made some confirmations. After making some adjustments, several system prompts rang one after another.

Chen Mo looked at these system prompts and couldn't help but be stunned.

System prompts: The territory you own has evolved from an ordinary urban territory into a strategic city because it has special conditions. Now you have two route choices.

Route 1: Ordinary player route. Under this route, every time you upgrade a strategic city, you can get a large amount of rewards from the system, and the city and you will become stronger and stronger.

Route 2: Special development route. If you have questions about the game and want to know the answer, you can choose this route. Under this route, if you can develop a strategic city to the highest level and achieve the highest goal, the system will answer all your questions. However, under this route, the development of a strategic city will no longer receive system assistance, but accordingly, you can get some tips that help development.

Please note that once the route is selected, it cannot be changed.

Subsequent system prompts appeared one after another, but it was fine if Chen Mo didn't look at it, but after seeing it, his pupils couldn't help but shrink.

"Ha ha ha ha!"

Looking at the system prompt, Chen Mo couldn't help laughing wildly after reacting.

After entering the game and playing it, his strength is close to the strongest person in the game, but his understanding of the game is not as good as the core character in a consortium.

But now, after Katerin turned from an ordinary territory to a strategic city, the route choice that appeared gave him a chance to understand everything!

There is no need to ask others for help. He can learn everything he wants to know as long as he works hard to develop Katerin himself!

Chen Mo has too many things to figure out about this game!

“Choose Route 2!”

Without thinking, Chen Mo made a decisive choice.

At the beginning, when he developed Katlin, he was interested in those gold coin choices, but now, gold coins are no longer of great significance to him. He rewarded Katlin with the most rewards, so he didn't value it too much.

Route 2 has no systematic rewards, and it may be tense in financial resources when it develops in the future, but he has some ways to make money.

System prompt: Route 2...Select confirm!

System prompts: The city has officially changed to a primary strategic city, the urban system has changed, and the next level is an intermediate strategic city. Please confirm the upgrade conditions in the urban system!

The system prompt sounded, and Chen Mo immediately opened the city system. After a look, he found that the system had indeed changed tremendously.

Before Katlin upgraded, the population, finance, technology and other attributes needed, but now those attributes have disappeared, and the upgrade conditions are completely different.

Conditions for upgrading intermediate strategic cities:

Intermediate urban diving system - 100% completion.

Intermediate urban flight system - 70% completion.

Intermediate Strategic Library - 100% completion degree (qualification: the library has enough books on magic and technology)

Intermediate Defense System – 100% completion.

Intermediate talent reserve - 30% completion degree (contracts: potions, tailors, blacksmiths, etc. must have at least 3 intermediate professions.)

Intermediate exquisite worker - 0% completion degree (qualification conditions are met: the development of strategic cities cannot be separated from exquisite workers. Many facilities require workers with exquisite skills to complete, and at least 10 exquisite workers are required.)

...

Unlike the upgrade of ordinary territories, the upgrade of strategic cities has suddenly become much more complicated.

However, Katlin's foundation is obviously good. Although there are many upgrade conditions, Katlin has actually achieved many conditions, and it is no longer too far from upgrading to an intermediate strategic city.

Chen Mo looked at the improvement of the strategic city level, followed by intermediate, advanced and highest.

Now the distance is not far from the intermediate level, and only two levels away, you can reach the highest level.

After reaching the highest level, he will know everything.

Seeing this, Chen Mo suddenly felt energetic.

However, after calming down, Chen Mo also knew that it would be not easy to get to the highest level.

At present, the conditions for upgrading to the intermediate level are quite complicated. If he wants to upgrade to the highest level, he is afraid of a lot of things he needs to do.

If you can't hurry up and take your time, you have to take it slowly.

However, first upgrade the city to the intermediate level. It seems that as long as you find a few more talents and 10 exquisite workers, the city can be upgraded. Of course, Chen Mo wanted to upgrade to the intermediate strategic city first, confirm the upgrade conditions of the next level, so as to prepare for upgrading in advance.

…………
Chapter completed!