In the Ice Age, I stockpiled billions of supplies

Zhang Yi was very familiar with the things in front of him.

I believe that any man has had an incomparable desire for this thing in his heart.

A mecha.

The small mecha, about five meters high, was silver-gray in color, with a special luster on the surface. This was a chameleon material that could automatically change color according to the environment, making it easy to hide its whereabouts and anti-radar exploration.

The lines that looked like a knife or an axe revealed the toughness and sharpness of steel. The joints were covered, but the inside had a flexible connection structure.

The position on the chest was translucent. No matter how you look at it, the cockpit should be in this position.

This was one-way glass, and everything outside could be seen clearly from the inside.

And behind it were two metal wings, and at the position of the tail vertebrae there were four hidden jet engines.

Zhang Yi couldn't help but move closer, his eyes glowing with light. I believe that no man in the world could resist its charm.

He reached out and stroked the body of the mecha inch by inch, and on the back of the mecha, he found a handle in the interlayer.

Zhang Yi jumped up and pulled it out with both hands.

With a crisp sound of "clang!", a big sword more than three meters long suddenly appeared in his hand.

The familiar metal material, the bright blade exuded a chilling light.

If Zhang Yi had not been wearing a black special inner armor, it would have been difficult for him to lift this huge sword weighing hundreds of pounds!

"Mecha swords, although they look really cool, are they necessary?"

Zhang Yi asked curiously.

To this day, he rarely uses cold weapons to fight.

Lu Keyan said to Zhang Yi very seriously: "Brother, it depends on which technique is more advanced, offensive or defensive. And according to the current situation, it is obviously easier to defend!"

Zhang Yi frowned slightly and did not understand Lu Keyan's words.

Lu Keyan explained to Zhang Yi in detail based on the history of weapon development.

"Weapons can be roughly divided into three types: long-range, close-range and protective gear."

"The development of the three types of weapons is a spiral structure."

"In ancient times, primitive people learned to use weapons and then used sticks to fight against stones."

"The power of a stick is obviously greater than that of a stone, because the friction of a thrown stone through the air will consume kinetic energy. But it has the advantage of attack distance."

"So later, in order to deal with flying stones, people can use wooden boards as shields. Wooden boards can easily block the attack of flying stones, but if you use a wooden stick to hit it at close range, the defensive power of the wooden board will be greatly weakened."

Lu Keran She spread her hands, raised her left hand and said, "So at this stage, the warriors holding wooden boards and sticks will be a greater threat on the battlefield."

She raised her right hand again: "But at this time, if you want to gain an advantage in distance, you must upgrade your long-range weapons. So the flying stones began to turn into bows and arrows, and ordinary wooden boards began to be unable to resist bows and arrows. At this time, the number of archers can determine the initiative on the battlefield."

"By the same token, at this time, in order to defend against the attack of bows and arrows, you must build a stronger metal shield and wear armor on your body."

Lu Keran's hands overlapped layer by layer.

"To put it simply, this is a relationship that is constantly rising. In the era of hot weapons, cold weapons were eliminated because ordinary protective gear could not withstand guns and cannons."

"However, this does not mean that its power is greater. If the kinetic energy of the bullet is exerted at close range, the lethality will definitely be greater."

"And now, it is the era of great mutation. Humans have mastered superpowers, which is a power that can surpass gunpowder. Aliens can open the dimensional door like my brother, or strengthen their bodies and deploy superpower shields."

"Hot weapons cannot achieve a qualitative breakthrough in a short period of time, and will be at a disadvantage in the alien war."

Lu Keren looked at the giant sword in Zhang Yi's hand, "So at this time, when facing those aliens with strong defensive power, close combat is the most effective way of fighting."

"Through the mechanical principle and the core powered by the Yuanshi, incredible power can be exerted."

Lu Keren's face became more and more proud, because this was a masterpiece that she had poured three years of hard work into!

"The combat capability of a mecha like this will definitely not be inferior to that of an Ipsilon-class alien! Especially when fighting in groups, the effect is extremely good."

Lu Keren's face was high, with his hands on his waist, very satisfied.

"Is it true?"

Zhang Yi's eyes widened, and he couldn't believe it.

"Of course!"

A cunning look flashed in Lu Keren's eyes.She put her hand on the streamlined fuselage and whispered, "Because it is loaded with a reactor comparable to a small nuclear reactor!"

"Einstein is really great. The theory of relativity allows humans to obtain extremely terrible power through such a simple principle!"

That's right, Lu Keyan can already make a small reactor.

People all over the world know the basic working principle of a nuclear reactor, but the most difficult point is the acquisition of materials and the precision production.

But these two points are not a problem for Lu Keyan at all.

[Divine Machine Control] In her hands with a supernatural power index of 9900 points, she can completely change the structure of matter and create extremely complex machinery and even weapons with her own strength.

Zhang Yi looked at the mecha in front of him and suddenly sighed.

"The thing is really good, but for me, it doesn't seem to be particularly useful."

He is already a bishop-level alien. Let alone the difficulty of driving a mecha, can he learn it?

In terms of practicality, he doesn't really need to drive this big guy, it will only make his movements inconvenient.

"Of course, because this thing is not prepared for my brother!"

Lu Ke Ran said as if it was a matter of course. She looked at the huge and sturdy mecha in front of her and stroked its body with a blushing face.

"This is what Ke Ran built for me and Xinxin!"

"With this, we can also help you when my brother fights in the future!"

Zhang Yi scratched his head with some regret: "Actually, I want to drive it too."

Yang Xinxin smiled softly, "Brother, that's too difficult for you."

Lu Ke Ran raised a finger seriously and reminded Zhang Yi: "This is not something as easy to drive as the EVA in the cartoon. The difficulty of operating a mecha is more than ten times more difficult than a fighter! There are thousands of operating buttons and combinations alone!"

"Except for me, the maker," she patted Yang Xinxin on the back, "only Xinxin, a genius with a photographic memory, can control it!"