Original God, I, the prince of Liyue, do not want to inherit the throne

Listening to the voice coming from the token, Ye Li scratched the back of his head and replied with a smile:

"Mom, don't worry. There's still time. I'll be there soon."

At this time, Gui Zhong, who was in the Luhuachi Cave, heard the voice coming from the floating token in front of him, with a hint of helplessness and a smile on his face, and said:

"If Liuyun finds out that you didn't arrive on time, I, your mother, won't be able to save you."

"Mom, don't worry. With my flying speed, I guarantee I'll arrive on time."

Ye Li on the other end of the token patted his chest and said confidently.

"Then you should leave now. Don't play around. I will test you on what you learned today when you come back."

"understood."

Gui Zhong listened to the helpless voice coming from the token and immediately realized that his son had not yet gone to Liu Yun.

After all, they have lived together for seven years, and Guizhong knows her son's character very well.

He is usually carefree, but every time he comes back he can talk fluently about the knowledge he has mastered. Sometimes he is tinkering outside the cave, making small things that interest him, saying that they are some kind of defensive mechanism.

Gui Zhong could also see that Ye Li's talent in mechanical engineering was not inferior to hers. Sometimes Ye Li's sudden ideas also brought her a lot of inspiration.

Usually, Zhenjun Liuyun Jiefeng would come to see Ye Li, and sometimes give her some advice or two, which helped Ye Li to have a better understanding of mechanical engineering.

With this guidance, Ye Li's talent was revealed to Master Liuyun Jiefeng.

This led to the arrangement for Ye Li to go and study with Master Liuyunjiefeng.

After hanging up the phone and hanging the token back around his waist, Ye Li, who was standing firmly on the water, jumped into the air. His whole body floated up, and with a shake of the air, he flew rapidly towards the direction of Aozang Mountain, leaving only the surging waves in place.

The air was compressed at an extremely fast speed, producing a sonic boom. Ye Li flew at full speed and successfully arrived at Ao Zang Mountain in the last few seconds, avoiding the result of being delayed by Master Liu Yun Jie Feng.

He took out the token and shone it at the entrance of the cave. The door made of special stones opened automatically, and inside was the secret vortex that Ye Li was familiar with.

Looking at the token in his hand, Ye Li knew that this thing was made using the techniques of Xianli Dongtian, alchemy, and mechanical engineering, and it was extremely valuable.

Hanging the token back on his waist, Ye Li took a step forward. His sense of space changed instantly, and he officially entered the cave of Master Liuyun Jiefeng.

Coming to the familiar classroom, Ye Li looked at the stone tables in front of the stone slab, then took out several books protected by elemental power from the wooden cabinet on the right, opened them and began to read.

The classroom is quite spacious, after all, it is made up of several platforms, but there are still some decorations such as flowers and plants.

A few minutes later, Master Liuyun Jiefeng opened the door and came in with great skill, holding a new design drawing that he had recently inspired, and placed it on the podium near the blackboard in the room.

Ye Li had already noticed the other party. He skillfully took out the carving knife and wood from his token, placed them on the wide stone table in front of him, and poured out a pile of parts.

The mechanical technology of the continent of Teyvat is essentially the same as the mechanical technology of the Earth where Ye Li lived in his previous life. Both use fine wood to assemble and polish fine mechanisms, which move according to the designed rules and produce various effects through chain reactions.

But there is one thing on the continent of Teyvat that can make this mediocre mechanical technology achieve a qualitative leap, and that is the elemental power that is everywhere.

The course that Ye Li learned was to use a special carving knife to carve the corresponding array patterns on the polished wood.

After all, pure mechanical technology can be lethal in the hands of mortals, let alone this kind of mechanical technology that is blessed by elemental power.

As long as he learns the advanced element theory and the depiction of formations well, Ye Li will be able to figure out the weapons of the previous life on Earth and shine in the upcoming war between demons and gods in the future.

"Today's lesson is about the core device of formations and mechanical arts. With it, we can more naturally guide the elemental forces to operate more smoothly on the mechanism."

Master Liuyun Jiefeng was holding something similar to a battery in his hand, which emitted abundant lightning elemental power.

Open the cover at the trigger of the assembled crossbow mechanism, which just happens to have a place to place the core dredge.

As the dredging device with thunder elemental force as the core was installed, the thunder elemental force was emitted from the assembled crossbow, and strands of electric current wrapped around the arrow.

Raising the crossbow in his hand, Master Liuyun Jiefeng aimed at the target on another platform in the distance and pulled the trigger.

A purple arc of electricity flashed, and the arrow attached with lightning element crossed a distance of one hundred meters in just one second, hitting the handle and piercing through it. The lightning elemental force wrapped around it also charred the target and caused it to fall into pieces.

Looking at the target that was destroyed and charred a hundred meters away, Ye Li had a deeper understanding of the power of this mechanism that enhanced the elemental force.

In this world with huge elemental power, the individual combat power of the demon god is very strong, and he can destroy the world with elemental power alone.

Weak humans will invent tools to allow themselves to survive better in this world.

In the eyes of some intelligent creatures, human behavior of relying on tools is seen as weak, just like an elephant looking at an ant.

But some intelligent creatures can see the potential of tools. Gui Zhong has a deep understanding of this, and Liuyun Jiefeng Zhenjun also understands the charm of mechanical engineering after coming into contact with tools.

The method of using elemental forces to drive mechanical devices is a new topic proposed in the past hundred years.

If this technology can be used on a large scale, any mortal can kill a demon god, but that requires reaching a higher level.

For example, there are people in Kanreya underground, their technology is definitely many years ahead of humans on the surface.

The day's classes passed quickly. Ye Li took the homework that Master Liuyun Jiefeng left for him today, and his expression was bitter.

"Alas, whether before or after the time travel, I can't escape the fate of homework." Ye Li complained in his heart.

After putting the parts and carving knives to be made today back into the token, Ye Li turned and left Ao Zang Mountain, flying towards Guili Ji.

Returning to the circular building in the center of Luhua Lake, Ye Li took out the token and placed it on the same groove. Then the ground shook and the water flow on the platform in the center of the lake dropped.

Ye Li jumped down and landed steadily, standing at the door of his own Dongtian Mansion.

Ye Li raised his hand and released the rock elemental power, sucking the token on the groove down, then scanned the door, the mechanism activated, the door opened, and the familiar spiral appeared again.

Taking one step forward, Ye Li returned to the cave world filled with clouds and mist and a yellow halo.

Looking at the misty environment here, Ye Li walked skillfully towards the stairs connecting to the top of the mountain, walked up step by step, and came to the courtyard house on the top of the mountain.

This house was built by hand in the third year after Ye Li traveled through time. At that time, he had not yet come into contact with mechanical engineering, and only relied on his own rock elemental power to construct the model. Then he went to various places in Tianheng Mountain to open mountains and split rocks, and only then did he build it brick by brick and tile according to the model after gathering all the materials.

Reaching out and knocking on the door outside the house, Ye Li heard footsteps coming from the courtyard inside the house.

The outer door of the house was opened, and the old mother who had lived with him for seven years finally appeared in front of him. Ye Li smiled and said:

"I am back."