More than ten days passed in a blink of an eye. Lin Muyu focused on engraving while practicing, but he always focused on level 1 engraving. He was not in a hurry to achieve success. After repeated practice, he could achieve more than 98% perfection every time. Although it was only level 1 engraving, there were probably few engraving masters in the world who could achieve such concentration and carefulness. From Jin Xiaotang, even the level 1 engraving guides like Wei Miao could have at least 90% perfection.

"rustle……"

The exquisite carving knife was gently grinding on the surface of the armor, and a layer of fine iron filings continued to fall to the ground.

The afternoon sun shone through the window into the room of the Deacon's office of the Temple. Lin Muyu was engraved without distraction, as if there was no one around. But the problem was that Tang Xiaoxi, Chu Yao and Feng Jixing were all sitting in the office drinking tea and chatting- "What are Brother Feng busy with these days?" Chu Yao asked.

Feng Jixing was wearing a brand new military uniform of a senior imperial general, crossing his legs and drinking tea, saying, "It's nothing, I just practice military training every day, and then practice Fengxing's sword technique. When I have time, I will go and see His Highness Feng Ning'er."

"Then the demon princess lives in the imperial capital, right?" Tang Xiaoxi asked with a smile.

"Yes." Feng Jixing nodded and said, "I asked Zhang Wei to take her to the streets more often. His Highness Feng Ning'er has basically adapted to the living habits of the empire. She planted flowers every day and was content with her satisfaction. I really doubt that she would be unaccustomed to it after she returned to the territory of the Demon 9 clan."

Tang Xiaoxi raised her eyebrows lightly, looked at Lin Muyu's seal carving progress, and said with a smile: "I heard that Feng Ning'er is the pearl in the heart of the Demon Emperor's hand. Is this cruel Demon Emperor so relieved that Feng Ning'er staying in the imperial capital?"

"There is no way. The demons repeatedly sent people to lobby for the Lingdong Province to exchange for Feng Ning'er, but we didn't agree. The Lingdong Province is poor in geography and is not conducive to garrisoning. If you take it back, it will be easily taken away by the demons. Having said that, Ayu, the stinky brat, asked me to come over and say that there was something to discuss, but I was there to make a mark and ignore me."

Chu Yao burst out laughing: "Ayu has been immersed in the engravings recently, so don't worry about him!"

But at this moment, Lin Muyu's carving knife suddenly shattered the last leg of the Xuan array with a crack. Accompanied by the sound of iron blocks falling to the ground, the fire seal suddenly shone brightly. When the test crystal was placed above, the numbers jumped rapidly, and the buzzing sound was endless, very strange. Everyone looked over, but they saw a line of numbers appearing on the test crystal - 100%!

"Oh My God……"

Tang Xiaoxi opened her mouth: "100% perfection, no, this guy Mu Mu is simply a big pervert..."

Chu Yao laughed: "In terms of the exquisiteness of Level 1 engraving, Ayu is already the best in the world!"

Lin Muyu finally raised her head and looked at everyone. The king's fighting flames around her arms were flying fiercely, becoming more and more powerful. After completing this seal, his power completed a breakthrough again. He had already entered the great realm of the Holy Sect Realm, and was only one step away from the perfection of the Holy Sect Realm. Feng Jixing seemed to see it and couldn't help but smile: "Congratulations to Ayu, your strength has improved again."

"Thank you, Brother Feng!" Lin Muyu nodded.

Feng Jixing said: "By the way, you ask me to come, what's wrong?"

"I want to show Brother Feng something."

"Hmm? What's the secret, mysterious."

"Let's go out first, it's not very convenient here."

"good……"

After taking the three of them out of the office of the deacon, he went directly to the backyard of the Temple. Lin Muyu gave the order, and several instructors and trainers who were practicing in the backyard avoided them, so the backyard became empty, with only rockery, pool water and low houses around.

"What exactly is it?" Feng Jixing asked with interest.

Lin Muyu said with a serious expression: "A thing that is enough to change the future fate of the empire, Brother Feng, Xiao Xi, Sister Chu Yao, you all retreat a little and leave me 20 meters away, otherwise there will be danger."

"oh?"

The three of them were confused, but they still retreated as they said.

Lin Muyu took out a coin from his arms, a magic crystal coin from the demon clan. After weighing it, he pulled out the Star Sword, cut off a corner of the magic crystal coin with a "double" sound, and then held it in his hand. With a sudden shout, the gourd wall of the Seven Immortal Gourd and the Dragon Battle Blood Shield appeared around him. Then, the king's fighting flames roared and quickly turned into a series of blazing thunder-type laws and lingering around this small piece of magic crystal.

"Swish swish swish swish..."

Under the pull of the power of lightning, this small magic crystal kept trembling, and in a blink of an eye, it was burned into a fiery red by Lin Muyu's pure fighting flames.

"Um..." A trace of worry flashed across Tang Xiaoxi's pretty face. She had seen this scene. The destructive power contained in the small magic crystal was amazing. Thinking of this, she unconsciously moved the lotus step to the front of Chu Yao. The pressure of the holy realm around her slowly fell, and the two-tailed fire fox martial soul appeared, protecting the master and Chu Yao behind her.

Feng Jixing narrowed his eyes. As a powerful person in the Holy Realm, he could still feel this small piece of magic crystal being ready to release a powerful force under the urging of Lin Muyu's power.

"Is this?" He pondered, wanted to speak but stopped, and continued to wait and see.

At this moment, the magic crystal that was less than the size of a nail was burning red, trembling in Lin Muyu's palm, and suddenly the light exploded into the sky!

"Bang!"

A small mushroom cloud soared into the sky. The impact formed by the explosion of the magic crystal tear apart the stone slabs on the ground. All the flowers and plants within a few meters were torn to pieces, and even the nearby rockery had collapsed.

Lin Muyu stood tall and stood tall, protecting herself with the Dragon Blood Battle Shield, safe and sound, but her heart was still filled with blood, which was really not very good. If it weren't for a cent of the magic crystal coin, but the amount of a whole piece of magic crystal coin exploded together, it would probably be no such destructive power at all.

"Did you see it? Brother Feng." He smiled.

Feng Jixing frowned and said, "Ayu, the magic crystal will explode, this is something I have never heard of."

"Yes, but the requirements for the explosion of the magic crystal are very high. It is to use the power of thunder and lightning to burn the magic crystal to a certain temperature before it explodes." Lin Muyu recalled the scene when he was in Yunling, and couldn't help but feel scared, and said, "At that time, the wisp burning demon spirit beads, one of the fifteenth elders of the demon clan, triggered the explosion of the magic crystal coins in the clothes. I guess there were at least dozens of magic crystal coins. Once they exploded, nearly a hundred meters around would be destroyed. Xiao Xi also saw that scene. In order to resist the powerful explosion impact, my dragon spirit sword was shattered. It was a holy weapon!"

Tang Xiaoxi nodded slightly: "That day the destructive power of the magic crystal was indeed more than ten times that of today."

Feng Jixing said: "So...A Yu, what do you think?"

Lin Muyu looked at the white clouds in the sky and smiled and said, "I want this magic crystal energy to be used by me. If... I mean, if, if possible, we melt a ball of magic crystal into a fist-sized ball, and a thick layer of iron sheet on the outer edge, and then use the principle of two kicks and make a cannon barrel with a circular pipe, which can send the magic crystal to a hundred meters or even a thousand meters away to detonate. At that time, the power of a shot is enough to shock the earth. Do we still worry about not being able to defeat the demons?"

A name was about to emerge in his heart - Magic Crystal Cannon!

Yes, this noun is so common in various novels and games, but this is the first time Lin Muyu feels that this name is so cute. As long as the Empire takes the lead in developing a magic crystal cannon, this magic crystal cannon will be enough to change the situation of the entire continent. Even with the power of the magic crystal cannon, even gods will have to be afraid!

But Feng Jixing was confused when he heard it: "A Yu... what is the second kick, what is the cannon barrel...?"

Lin Muyu was speechless: "I just knew... Forget it, you will understand when you look back and draw a simple picture. But today I called you over not just to show you, but more importantly, I want to discuss something with you."

"What's the matter? Tell me." Feng Jixing smiled happily.

"I want to set up a separate Weapon Department in the Temple, transfer Qin Ziling from the Ministry of Works and return to the Temple. If possible, some capable relevant people will come to help from the Ministry of Works and help."

"Oh?" Feng Jixing was stunned: "Do you want to... develop this amazing weapon privately?"

"That's right."

Lin Muyu hugged her arms, and a strange light flashed in her eyes. She said with a smile: "Once the research of this weapon is completed, its power will be enough to change the current situation. However, the Ministry of Works not only obeys you and me, but also obeys the orders of Mr. Lan, Mr. Yun, Mr. Xiang Yu, Yao Yuan and others. People's hearts are separated by their belly. I can't imagine what the consequences of this weapon falling into the hands of others."

"Okay." Feng Jixing nodded and said, "Then I will come forward to help you solve this matter, but... after this weapon is developed, don't forget Brother Feng, you must equip my imperial guards with some such destructive weapons!"

"Haha, don't worry."

"Well, then I'll do it, by the way..." Feng Jixing coughed, looked at Tang Xiaoxi and Chu Yao with a strange look, and then lowered his voice and said, "You haven't been to see Feng Ning'er for a long time. She asked me again and again, when will you go to see her? He is a demon princess and is so fond of you. When will you go to see her?"

Lin Muyu was stunned, and Feng Jixing's voice was so loud that the pedestrians on the street could almost hear it. Tang Xiaoxi and Chu Yao could naturally hear it.

"Hmph..." Tang Xiaoxi's pink little mouth raised gently, looking at Lin Muyu arrogantly, and the snow-colored fluff on the soft armor on her chest swayed in the wind.

Chu Yao burst out laughing, glared at Lin Muyu, and said, "The Demon Princess has fallen in love with you. Humph, you are so flirting with the flowers everywhere!"

"Xiao Xi, Sister Chu Yao, I really didn't..." Lin Muyu was so wronged that she explained: "I just treated Feng Ning'er with courtesy. I think I'll still not visit her... Brother Feng, just take good care of her."

Feng Jixing waved his hand: "No, although Feng Jixing lacks girls in his life, I will never touch the women of the demon clan. Let Zhang Wei take care of her, that rough man. Anyway, Zhang Wei is heartless and only knows how to drink and practice martial arts, and he has no intention of falling in love with any woman."

“Okay…”
Chapter completed!