At the entrance to Yunhai Sect, in the abdomen of a small mountain peak, the ancient town is enthusiastically studying the rpg rocket launcher that he just got.

"It's a strange secret treasure."

"The material produced is of average quality, but it has a variety of parts that are compounded inside and embedded together. The simple piece-piece combination has achieved different effects."

"And, this is not a complete secret treasure, just a part."

Indeed, rpg bazooka is just a tool, rockets are the key.

Unfortunately, Liu Shaofeng did not have rockets in his hand.

However, these did not prevent him from studying enthusiastically, because the structure of this rpg is very novel, so novel that he has never seen such things that can exert great power without passing through the formation. Just a few ordinary materials.

The first of the ancient town is a weapon refining master with vast knowledge.

Although the structure of rpg is complicated, in his eyes, he could easily see through it with just a glance.

Even the internal structure could not hide his soul's strafing.

And the more this happens, the more interested he becomes.

"A completely different secret treasure method!"

"Using simple parts combinations, the shape, size and hardness of the parts must be perfect, and even if it is a little bit bad, it may fail."

"This extremely sophisticated design is even more complicated than many mechanical puppets."

"Interesting, interesting."

At this moment, the ancient town was so inspiring that there were so many thoughts in his mind that he wanted to try them all.

However, he was not in a hurry, but instead studied it carefully.

The powerful soul shot over and over again, and it completely studied every corner of the rpg rocket launcher, and even the structure of the material was not spared.

"Well, they are all made of ordinary materials, and they are combined with special effects formed by special proportions, which is interesting."

After a full day of research, Guzhenyi reluctantly put down this rpg.

...

At noon the next day, the ancient town, which was full of hair and looked like a madman, walked out of the dense land on the hillside and came to the top of the small mountain peak.

He was holding a strange barrel in one hand and a round black iron ball object in the other, with excitement.

"Hehe, the secret treasure I have made after spending a night, let me see how powerful it is now?"

After thoroughly studying the rpg, the ancient town spent a night without stopping, wasting a lot of materials and treasures, and used the newly obtained inspiration to refine the dark tube and the "black iron ball" in his hand.

Don’t look at the dark long tube, it’s inconspicuous. In fact, I don’t know how many formations are portrayed inside, achieving a balanced effect similar to RPG.

The "black iron ball" was a shell he developed himself. From his knowledge, he naturally saw that Rpg lacked some and knew what could exert its power, so this black iron ball took even more effort.

"Prepare it, let me try it."

An ancient town carefully put the black iron ball into the long tube, then lifted the long tube and aimed at a barren mountain.

"Go!"

He screamed excitedly and pulled the trigger of the imitation version hard.

But ~

No reaction at all.

There was only a click, the complex pattern inside flowed, the trigger sounded, and then...

There is nothing else.

"How could it be? Shouldn't it be fired? This structure is absolutely correct. The 'cannon shell' I designed should be fine, but why?"

The ancient town couldn't believe that the things he had worked hard to design were useless.

"no."

"I'm going to see it again."

While speaking, he ran to the secret room of the mountain belly again, picked up the rpg rocket launcher, and compared it carefully.

"The entire structure is similar, and the structural error of the parts is very small and has almost no effect."

"The one I refined has added a large number of formations to be stable and stronger, but..."

The ancient town is puzzled.

After a while, he considered: "Is it the reason for this 'black iron ball'?"

"No, no, no, even without this black iron ball, the black tube I refined cannot be ejected? Why is this?"

"Can't you add a stable formation?"

Having no idea, the ancient town went to try again.

It was another day, and he was radiating his hair and once again developed a new black tube second generation.

This second generation was completely imitated, and it was so easy that it didn't even add the formation.

Ten minutes later!

"Failed again? How could it be, how could it be? I didn't agree with the calculations."

The ancient town really can't figure it out.

He had never seen such a situation. Logically speaking, the things he designed were useless, but they just couldn't achieve the ignition effect.

This is not a problem with the black iron ball, nor is it a problem with the lack of part of the RPG, but the fact that his black long tube second generation is fundamentally wrong.

"Can't imitate be possible?"

"The material I used is better than it and has a better effect."

"Do you have to use the original materials? But there are some materials in the RPG that I haven't seen before!"

In addition to common metals, there are some special coatings on the surface and interior of the rpg, which are not available in this world, and I have never seen ancient towns before.

As he said that, he ran back to the secret room of the mountain belly, grabbed the rpg viciously, and directly dismantled it into piles of parts and scattered all over the floor.

"I don't believe it."

This time, the ancient town became even more straightforward.

He melted the pile of parts directly, then looked at them one by one, looked carefully and refined them again.

However, this time he did not refine any black long tube three generations, but directly copied and imitated an rpg to create the same one.

Guzhenyi hopes that during the re-refining process, he can discover something and then make up for the shortcomings of his own research.

Parts are recombined one by one.

A few minutes later, a new rpg that was exactly the same as before appeared in front of Guzhenyi.

Perfect copy, absolutely none.

"Let me try it."

I came to the top of the mountain again. When the ancient town touched the rpg he copied, he pulled the trigger.

At this moment, a familiar clicking sound came, shocking the ancient town.

But the next second, before he could be happy, the copied rpg in his hand collapsed and turned into a pile of black metal gravel.

"How is this... possible?"

This strange thing appeared in front of him out of thin air, which made him completely unbelievable.

Boom ~

In the sky, a muffled thunder suddenly sounded.

A purple lightning flashed directly across the sky, and with a thunderous sound, it instantly landed in front of Gu Zhenyi, piercing the rocks in front of him, emitting dark and scorched smoke.

Puff ~

At this moment, Gu Zhenyi looked like gold paper, and countless terrifying sounds of thunder seemed to be resounding in his soul. Then, under the shock of his mind, a mouthful of red blood spurted out.

"this……"
Chapter completed!