The lecturer was a female teacher, very young, almost about the same age as Wang Haoyu. Pen & Fun & Pavilion www.biquge.info is not only young, but also very beautiful. It's definitely the kind of beauty that is rare, and in addition to that, the breasts are also very big.

Seeing that the seats below were full of students, the female teacher coughed lightly.

"My name is Tang Yan, and I am your theoretical lecturer. Welcome to become a member of the Tianfeng Academy, today we are talking about the pattern of the world. ”

Immediately afterwards, Tang Yan began to speak freely.

Similar to what Wang Haoyu understood, Tang Yan just talked about the basic situation of Tianhua Kingdom. The central part is a barren place in their eyes, and the south is better and more abundant in materials. Agriculture, in particular, has passed twenty years since the end of the world, and some industries have resumed their development.

In the north, heavy industry is more developed, and in addition, animal husbandry is also developed.

After listening to it briefly, Wang Haoyu felt a little boring. Before you know it, a class is over.

Early the next morning, Wang Haoyu did not go to class. Instead, he returned to his rented hotel room.

Before, he had 5 million magic crystals, plus more than 5 million extorted from Zhang Changyuan, and Wang Haoyu absorbed 1 million magic crystals from that crystal every day for the past three days. Now Wang Haoyu's ID card and the system are added together, and the total assets have reached more than 13 million.

Now there are only three days before the prediction of the disaster, and Wang Haoyu is not sure if it will still happen after he gets the crystal. And before that, he had to be prepared. And the upgrade system is the task of the current promotion.

After rushing those magic crystals of the ID card to the energy value of the system, it was enough to make up 13 million. Wang Haoyu first spent 3 million to upgrade the defense system. Then a full 10 million was spent to upgrade the main body of the system.

Every time the base is upgraded, the people inside will be stunned except for Wang Haoyu, and after more than ten seconds, Wang Haoyu saw some changes through the system function menu.

The first is the blessing of the king's energy, and the [Minecraft] system upgraded to level 6 can bless the base with the blessing of the king's land.

When Wang Haoyu was at the base, the base team remembered that mutant beasts and zombies were immune. When Wang Haoyu is not in the base, he can only be immune to level 1 mutant beasts and zombies.

With this function, Wang Haoyu was overjoyed, originally only when he was in the base, he would be immune to level 1 mutant beasts and zombies, so that they would not attack the base. But now it's level 2, not only that, even when he's not in the base, it will have the previous effect, and the base is immune to level 1 zombies and mutant beasts.

In this way, even when Wang Haoyu is not at the base, there is no need to worry about the threat of the beast tide.

Before, Wang Haoyu was most worried about the base encountering a tide of beasts, and as long as there was the blessing of the king's qi, level 1 mutant beasts and zombies would not approach the base, so that under the blocking of the base wall, the mutant beasts and zombies above level 2 would not rush to the city wall at all.

It can be said that this function is not only as simple as immunity, but also completely eliminates the hidden danger of the beast tide.

With the upgrade of the system, the base now moves at a speed of 20 meters per second. Not only that, but it can also be raised by 10 meters overall. In other words, it can float in the air.

The speed has been doubled to 70 kilometers per hour, which is comparable to the speed of a normal car.

And there is also the fact that the base can be suspended.

Although the height of 10 meters is not very high, there are a few mutant beasts and zombies that can reach such heights. Not only mutant beasts and zombies, but it is not easy for people to hurt ten meters out of thin air, not to mention that Wang Haoyu's base also has a ten-meter wall.

However, this suspension cannot be used for a long time, and can only be used for a maximum of 1 hour a day. And when hovering, the speed of movement will be 10 meters per second.

Despite this, the overall improvement of the base is not small. The movement speed alone solves a lot of problems, and with this speed, even if you go on a rampage, you may be able to crush the small beast tide.

In addition to these, there is also an exchange system, which is also something that Wang Haoyu is more concerned about.

Wang Haoyu came to the end of the world, and many times he exchanged things from the system to solve the problem. There are cheap and expensive items in the system, and if you use them well, they will work well.

First of all, weapons, in addition to those ordinary equipment, the starlight sword and the like after the last upgrade of performance, there is one more large missile, and the central area can directly kill level 5 mutant beasts and zombies. And the price is also very expensive, reaching 1 million magic crystals, and the killing radius is 300 meters, which is very terrifying.

In addition to this, weapon sets appeared for the first time in weapon systems.

A pulse rifle for five grenades, a pistol. 1,000 rounds of ammunition, 20 high-explosive grenades, 1 repair potion and a combat dagger.

The original price of these two snatches and grenades was 200 energy points, plus grenades and repair potions, a total of about 500 magic crystals. The package price given in the system is 350 magic crystals. In this way, it is equivalent to a seven-fold discount.

With such a discovery, Wang Haoyu is very satisfied. It is estimated that the system has reached level 6, knowing that it has entered the stage of base development in this situation. In this case, personal and some expensive weapons are no longer very practical, so a package of equipment that can be used for base armament is introduced.

And the tank has an additional stealth tank, which attacks by electromagnetic pulse and has an anti-detection device. The speed of movement is up to 200 km/h, and the firepower is three times higher than before. And its price has reached a terrifying 100,000 magic crystals. It was codenamed the W-2 tank.

The same is true for armored vehicles, there is an extra giant troop carrier armored vehicle in the system, the price is also 100,000 per day, and it can transport such a huge number of 500 people. Moves at a maximum speed of 200 km/h.

In addition, the previous mortar has also been upgraded. Previously, they were all fired manually, with a maximum rate of fire of 30 rounds per minute.

Now the appearance of this upgraded mortar has changed a little, from one barrel to three. And under him there is a shell box, which can be filled with 100 shells. The biggest change is that it can be turned into bursts, which can fire 100 shells a minute.

And the price of such an upgraded mortar is 10,000 magic crystals per piece, which is really cheap. It's just that it's a little less powerful than a tank.

What surprised Wang Haoyu the most was that there was an additional space exchange system in the system.