In order to cope with the enemy's larger-scale attack, although Xiangji Lia was reluctant, she also had to ask Chu Mengji to go to the Tianma Clan and the Wolf Clan. Chu Mengchen told Fado and Pefeniel to take care of the customized "grenade", and the two hurriedly patted their chests to ensure that there would never be any mistakes.

"My lord~~!According to the knowledge you taught us before, the Celestial Crystal Energy Channeling Device has been completed, I don't know what to do next?" Elder Ai Hui bowed his head respectfully and asked.

"Bring it to me and take a look~!" Chu Mengchen hurriedly said after hearing this.

Elder Ai Hui pulled out a mortar-like dongdong from a storage ring and put it in front of Chu Mengji.

As soon as Chu Mengji saw it, he immediately came to the spiritual head, he took out three top-grade Tianjing ores and stuffed them into the trough containing energy, and pushed the guiding lever a few times according to Ai Hui's instructions, and a white energy pillar shot out instantly, and the wall of the hall where Chu Mengji was located was immediately blasted out of a big hole, and the energy of that pillar of light went straight to the top of the inn before disappearing, but the wall of the cylinder made of stainless steel was red and hot.

This is the energy guide of three top-grade celestial crystal ores, what if it is an ordinary spar? Chu Mengji asked Pefen Yile for a few ordinary spars again, and the result was obvious, the energy pillar only shot out of the introducer for about four or five meters before disappearing.

"Elder Ai Hui, go and find the best craftsmen, I want to design a few special energy channeling devices, I hope to do it as soon as possible with the cooperation of Old Donner!"

"No~~!" Ai Hui saw that Chu Mengji had another inspiration, and hurriedly bowed down and withdrew to find someone.

Soon, an old goblin with a wrinkled face walked in tremblingly, and when he saw Chu Mengji, he quickly knelt down.

Chu Mengchen couldn't see this kind of etiquette the most, and gently exuded an internal force to hold it up and said: "Old man, due to the urgency of time, I will only draw a few pictures and tell you about it, I hope you will listen carefully!"

"Seventeen~~, you wait!I'll go get Sarna!" Fado quickly suggested when he heard this.

"What are you looking for Sarna?" Chu Mengji asked suspiciously.

"Yesterday I saw that she used a crystal ball to record the dance of the girl, and then as long as she was filled with spiritual power, she could reproduce the movements of the dancing spirit at that time, I think you can let her record it while you say, how about it?"

"Damn~~!We actually have a free photographer here!" Chu Mengchen was amused when he heard it, and hurriedly urged Fa Duo to go quickly.

Salna was enjoying yesterday's street dance alone, and the knock on the door of Ping Pong immediately woke her up, so angry that she wanted to scold, but when she saw that it was Fado who pushed the door in, she swallowed back the vicious words that came to her mouth, and asked strangely: "Brother Fado, is there something wrong with me?"

"Sarna, come with me!There is something important that needs to be done with your strength!" Fado couldn't help but say, took Sarna's little hand and ran to the room where Chu Mengji was.

Sarna followed Fado to this hall in a daze, and when she saw that many people inside were looking at her with expectant expressions, her heart was even more uneasy, and she didn't know why.

"Miss Sarna, could you please concentrate and use your magical crystal ball to record your lord's words and deeds?"

"Hehe~~, what should I do! It's like a war, this is easy to do, give me a few top-grade Celestial Crystal Ore, and I can let the crystal ball record for a whole day!"

"Don't mention a few top-grade heavenly crystals, if you want hundreds, I'll give them immediately!" Pefeniel was already shocked by the grenade, he really didn't know what powerful weapons Chu Mengji would invent, he was looking forward to it.

"Take out the pen and paper, I'll start now!" Chu Mengchen saw that Salna was already in place, and took the pen and paper handed over by Elder Ai Hui and began to design his own.

Outside the window, the west wind hunted, the clouds were a little depressed, and the cool rain was mixed with a little snow particles, rustling on the window lattice. In the room, Chu Mengji is devoting himself to the design of simple howitzers, mortars, cannons, rocket launchers, and six-zero fires with the help of the delicate and powerful biological hard disk in his brain. While carefully explaining how to place the energy channeling device in the most suitable position, he scaled down the size, and the precise length and size that did not need to be calculated made everyone present stunned, like a freak!

"Let Old Donald make more stainless steel billets, you try your best to shrink the energy guidance device, and when it reaches the thickness of your fingers, then make the following weapons!" After Chu Mengchen finished speaking, he took a few more large pieces of paper and drew a detailed drawing of the modern Ninety-Five Clan-style firearms, but the bullet magazine was no longer a bullet, but the most commonly used spar in the world!

"In order to save Tianjing, you can apply the principle of triggering mines to this weapon, let's call it a cannonball for the time being~!" Chu Mengchen said while drawing the prototype of the cannonball.

"My lord, the mines are all oblate, why do you want to make this cannonball into a conical oval?" asked the orc elder, scratching his head.

"This is so that you can fly straighter and farther after launching, and you need to engrave a few thread-like rifling wires in the energy guide canister......" Chu Mengchen explained in detail the production principle of the shell and howitzer barrel, and the large frame with wheels was very finely drawn.

Sarna carefully recorded with the crystal ball while absorbing the energy of the heavenly crystal, and the more she looked at it, the more she felt that this group leader was less like a person from this world, and she was simply a god from another world! Even Pefen Il, who boasted of being a well-traveled and knowledgeable person, looked like a fool, and Sarna actually had the urge to cut off Chu Mengji's head and dissect it to see what was going on!

After eight hours of explanation, and the drawings were as tall as a strong man, Chu Mengchen stretched his waist and said: "For the time being, our technical ability can only make these weapons, when Graceburg develops better, I may give you how to make more bullish ballistic missiles and thermonuclear weapons and the like~~!"

"Also~~ There are more powerful killing weapons than this~~!" Yu Han heard this, covered his forehead with his little hand and exclaimed.

"Of course~~!The power of science and technology is unlimited, in the face of truly powerful scientific and technological power, the destruction of this land and this world is only a matter of minutes, and the god-level master is also cannon fodder garbage in front of it!" Chu Mengji replied casually.

"Smack~~when~~~Oops~~!" With Chu Mengji's scream, this thing paid a heavy price for his words.

Philo didn't know when he appeared by his side, and angrily stretched out his hand and gave him a shock!

"You old fellow, why are you hitting me so hard?" Chu Mengchen complained angrily.

"Who said that god-level masters are cannon fodder and garbage? That grenade fire magic of yours is okay with ordinary soldiers, and the magic martial arts above seven stars can ignore its explosive attacks with their protective aura, let alone god-level masters! For the old man, all the bottles and cans in your ring have exploded, and it is difficult to hurt the old man a single hair, hum~~!" Old Philo raised his beard and replied proudly as soon as he looked helpless.

"Damn~~!, old guy, give you some color, and you'll be stretched!" When Chu Mengchen heard this, his competitive mentality was immediately aroused, "Today I will make a killing weapon that will make you lose face!"