Liu Zhengyang was still very pleased.

Both the city defense system and the research on new materials have already yielded preliminary results.

This also means that a large-scale installation has been put on the agenda.

If the only possibility that can hinder this process is the lack of materials.

This problem is a headache, but in any case, Liu Zhengyang has to find a way to solve it.

"Now that the research on new materials here has made preliminary progress, it seems that I am going to the Northwest!"

When he first went to the northern grassland, Liu Zhengyang got a lot of useful materials.

But the place with the richest resources is of course the Northwest.

It's just that the northwest region is too wide and desolate.

Moreover, it is not easy to find a mineral deposit.

But Liu Zhengyang had no other way. He had to do it himself.

"As long as there is sufficient supply of materials, I think our research progress will be further expanded!"

Master Jiubao patted his chest and assured him.

Liu Zhengyang nodded, and then returned to Tiancheng after a few exhortations.

There are already signs of preliminary exploration by the Mozu outside of Big Fish Island. This is not good news for Liu Zhengyang, and it must be taken seriously.

Obviously, there is not much time left for him.

But when he returned to Tiancheng and prepared to cook dinner for Xiaodomi and the others, the familiar breath came again.

But this time is different.

The most advanced results used by the ruling mansion, even the arrival of the demon emperor, have been detected.

"Kakka!"

A series of starting sounds of city defense equipment came.

Those sharp instruments aimed at the demon emperor in mid-air.

Facing the feeling of being locked in, the Demon Emperor only slightly frowned, and then looked at the city defense equipment curiously.

"This is what you rely on recently...technology?"

Liu Zhengyang's feeling towards the demon emperor is not bad, and now he can't help but chuckle when he hears him say this: "Yes! How is it? Isn't it a bit surprised?"

"indeed!"

The Demon Emperor said with some emotion: "I now seem to understand why the Demon Race failed in the first place!"

Liu Zhengyang shook his head, "No! You think too much! I didn't have so many high-tech things when I was fighting against the monster race!"

A word suddenly made the demon emperor's face sink.

what happened? Is that slap in the face?

Who can stand this so much!

Seeing the demon emperor's solemn expression, Liu Zhengyang couldn't help laughing: "Oh! Just kidding! Don't be so serious!"

After speaking, he laughed himself.

The Demon Emperor couldn't help but shook his head helplessly: "I really didn't expect you to cook!"

"What's so strange about this! How about? Would you like to try it?"

Liu Zhengyang said openly.

"OK!"

The Demon Emperor hesitated for a moment, then nodded.

Liu Zhengyang walked out the door, and then made a gesture.

The people in the Anbu quietly retreated, and at the same time, they took the order issued by Liu Zhengyang to not allow anyone to approach.

Xiao Duomi and others are the people Liu Zhengyang cares most about. He will never allow the Demon Emperor to get too close to them!

The human heart is separated from the belly!

Although everyone is now under a framework of cooperation, who knows whether the Demon Emperor will suddenly move his mind?

Liu Zhengyang can't bet!

The Demon Emperor looked indifferent, waiting patiently for Liu Zhengyang to serve the food. The appearance that did not come reminded Liu Zhengyang of the scene where Xiao Duomi and others were waiting for him to serve the food.

Cough cough cough, this seems a bit bad!

If the demon emperor knows about it, it is estimated that he will run away in an instant!