Modern Teyvat, bound to the Abyss Spiral

"Sister Xie Xianyun." Li Qingping sat on it. "Did Grandma Ping tell you about my dream?"

"Of course, we always keep each other informed about matters concerning the end."

That's good, it saves Li Qingping from having to talk too much.

"Last night, I used the Dust Purification Bell once, and the dream changed."

Li Qingping omitted the part about being beaten during last night's encounter and directly jumped to the part about assembling the mechanism.

At first, Xianyun had a calm expression, but when she heard Li Qingping talking about the seven rectangular building blocks with smooth surfaces, her expression finally changed.

“Is this it?”

Xianyun waved his hand, and the sound of a machine was heard from the table in front of him. A hole opened in the middle of the table, and a building block almost identical to the one described by Li Qingping emerged from below.

"Yes! That's it! Hagentus wanted me to spell this. But I tried many times and failed. Finally, she had no choice but to ask me to come to you."

Xianyun sat in the chair blankly, his eyes wandering, as if he was still recalling something.

Li Qingping did not urge him and waited until Xianyun took the initiative to speak.

"In the end, he is not considered strong among the demon gods."

You are right, but it is this weak demon that makes me stuck.

"But she is very good at mechanical engineering, and her attainments are even higher than mine." Xianyun said.

"Sister Xianyun, do you recognize that assembled product in the shape of Luban Lock?" Li Qingping asked.

"I think I've seen it in the Emperor, but since Gui Zhong died, everyone has put away everything related to her. I guess the Emperor is the same."

After hearing what Xianyun said, Li Qingping became even more interested in the Luban lock-like thing.

Maybe after you put it together it will be the same style as the Emperor!

"That's off topic. Let's talk about this first."

Xianyun carefully took out the building block and placed it in the palm of his hand.

"I finally discovered a problem while studying mechanical engineering. In order to create different types of mechanisms, we often specialize in manufacturing the necessary mechanical parts.

This makes the production cycle of a finished product very long. She told me this problem and hoped that I could help her with some advice.

But later, she was the first to find the answer.”

"Is this it?" Li Qingping pointed at the building blocks in Xianyun's hand.

"Well, it's ultimately called a universal mechanism module. As long as you input elemental forces into its pathways in a certain order, the universal mechanism module will manifest the corresponding form, thus directly completing the assembly of the finished mechanism."

Holy crap! The Demon of Dust is a genius!

It’s like when you think of a mechanism in the future, you can just assemble it using the corresponding parts made from these building blocks!

"It's genius, right? I was amazed by her idea at the time."

"So what happened next? How many of these things were made?"

"That's the only one I know of."

"One?" Li Qingping was stunned. "Is it because time is too short and we're too late?"

"Neither of them is right. It's simply because the cost of making this thing is too high."

Xianyun sighed and handed the building blocks to Li Qingping. "The universal mechanism module requires the power of the demon god Guizhong as the material to be manufactured. Even this one of mine is only a semi-finished product."

Li Qingping input elemental power into the building blocks and found that the passage inside was indeed different from that in the Abyss.

"It seems a little inconsistent."

"Gui Zhong told me at the time that even after exhausting the power of the Demon God of Dust, she could only create seven building blocks."

Xianyun paused at this point and looked at Li Qingping. "It's exactly the same number as in your dream."

"It seems that Senior Demon God of Dust still likes me, even sending me dreams."

Li Qingping smiled awkwardly, knowing that this True Lord Liuyunjiefeng might be suspicious of him.

Is there really such a coincidence in the world?

It's just such a coincidence, otherwise how could it be a dream?

"Since you can find this last key, you are indeed destined to return home." Xianyun nodded.

Li Qingping breathed a sigh of relief.

"What do you want to learn? If it's this, I don't know how to do it either." Xianyun pointed to the semi-finished product of the universal mechanism module, indicating that he could not help.

But Li Qingping came here just for this, and now he couldn't even do the technique of keeping the clouds and wind the closest to Hagentus, so he was at a loss.

How about you go to the Emperor and ask him what that Luban lock-shaped thing is?

"The Emperor is not in Liyue." Xianyun saw through Li Qingping's little thoughts.

"Where did the Emperor go?"

"Wasn't it the Vortex Church that attacked Liyue Airport? They believe in Osel, so of course the Emperor will go and settle accounts with Osel."

Li Qingping became interested after hearing the news about his arch-rival Osel.

"Where is Osel now?"

"Outside the Yunlai Sea, during the Demon God War, his strength plummeted for unknown reasons, so he hid in the sea early on. He became one of the few demon gods still alive in this world, besides the Seven Gods."

How could he not fall? The Fang of Osel is in his hands now.

"Will the Emperor be able to take his life this time?"

Xianyun glanced at Li Qingping and said, "Do you have a grudge against each other? Why do you want him dead so much?"

"How could that be possible! I just think that the Emperor is invincible. Killing someone like Osel would be a piece of cake."

"That's true, but if Osel wanted to escape, no one could stop him in the sea. The Emperor was only there to give him a warning."

That's such a pity.

Li Qingping clicked his tongue and shook his head: "This Osel is really tough!"

"Enough small talk. Tomorrow we'll be entering the ruins of Guizhong, and the Emperor will also be returning. For now, I'll pick out a mechanical diagram for you. If you try to operate it yourself, you'll improve faster."

Xianyun is not a pedantic person. Seeing that time is limited, she starts to answer questions directly. I think if she becomes a high school teacher, she will also be a famous college entrance examination teacher.

Xianyun waved his hand, and a huge gap appeared in the wall behind him.

It was filled with drawings that were two or three meters high.

"These are just some of the drawings that I think are important. Let me find some simple ones." Xianyun began to flip through the drawings.

Li Qingping was not idle either. He stood by and looked at the drawings that Xianyun had read.

Until he saw a familiar drawing.

"Wait a minute, Sister Xianyun! I've seen this blueprint in my dream!"

Following the direction of Li Qingping's finger, Xianyun saw the drawing, and there was more nostalgia in his eyes.

"How nice it would be if I could have your dream."

Volume 1: 60. The third level of the Abyss Spiral, challenged successfully (4k)

Xianyun took out the drawing and waved at the table in the middle.

All the mechanical parts piled on the table flew to the wall and were hung there.

She spread the drawing on the table.

"This mechanism blueprint is quite old. Do you mind if I explain it a little more?"

Li Qingping shook his head and signaled Xianyun to continue, he didn't mind.

Li Qingping has no clue at all now. He is eager to hear more about what happened in the past from the old mouths of the Demon God of Dust. Maybe he can find some clues.

"One day, Gui Zhong and I were drinking tea, and we were chatting about our latest mechanical creations. At that time, I was very competitive and said that we should bring out all our mechanical creations for a competition."

"Gui finally became interested, so we both gave each other the drawings we had drawn."

"Her drawing showed something resembling a ballista."

Li Qingping had a bad memory and asked, "Yihu mechanism?"

"Not bad, you even know this." Seeing that Li Qingping could answer, Xianyun smiled more.

If possible, Li Qingping didn't want to know this, but he couldn't just get pricked all night for nothing, right?

I have to remember that this time when I enter the ruins, I might have a chance to fight against the Yihu mechanism!

"The moment I saw the drawing, I knew I had lost."

"Sister Xianyun, your design intention and that of the Demon God of Dust should be the same, right?" Li Qingping carefully looked at the drawings on the table and expressed his inner thoughts.

Xianyun's eyebrows twitched slightly, and there seemed to be a hint of surprise on her face, but she quickly restrained herself and said calmly, "Why do you think so? Tell me."

"In my humble opinion, just treat it as a joke."

"Yeah." Xianyun nodded.

"That dream was incredibly real. I even personally experienced the attack power of the Fox Mechanism. It can be called a powerful weapon.

But combining Guizhong's tome and various records of Liyue, this Yihu mechanism should have been invented by her to protect her people, right?"

"You have a wide range of knowledge. You've read a lot of books on related subjects in the Liyue Library, haven't you?" Xianyun glanced at Li Qingping and pretended to be casual. "What about Guizhong's ancient books? What do you think of... I mean, what do you think of those ancient books?"

There are too many and too detailed contents, it doesn't seem like an ancient book, more like a diary!

But Li Qingping kept a cautious eye on it: "Very good."

"Yeah, I think so too." Xianyun raised his head slightly, looking at Li Qingping with a more pleasing look, "Go on."

"Sister Xianyun, the mechanism you designed on this blueprint is obviously not for immortals.

The finished product looks like a catapult, which is similar to the prototype of the Yihu mechanism, so I say that.

But I think your mechanism is pretty good, I'm just curious why it hasn't been further developed."

The Yihu mechanism has been iterated several times and is now in service at the fourth generation. As for why Xianyun's design has not been promoted, Li Qingping dare not say.

"Ha! You're quite a good boy!" Xianyun laughed. "There's nothing to be ashamed of. Guizhong's design is better. The power of the Yihu mechanism is not inferior to mine. Moreover, with a little modification, it only requires two people to operate."

Li Qingping looked at Xianyun's drawing again and estimated that it would require at least four people to operate it. It was indeed inferior to other people's designs.

"At that time, I was stubborn and even took the matter to the Emperor, who made the final decision."

Li Qingping felt a little sympathy for the emperor. It was too difficult for him to have to deal with such trivial matters.

"The Emperor still saved my face and said Guizhong was slightly better. At that time, Guizhong was so happy that he jumped up and down, with a smile on his face like a blooming glass lily."

"That should be quite beautiful." Li Qingping agreed.

"I understood right then that she truly loved mechanical engineering and considered it a part of her life. I liked it, too, but not as much as she did."

Xianyun didn't respond to Li Qingping's words. After he finished speaking, he sat there alone, feeling lost.

"I've strayed off topic again. Since you've seen this blueprint, use it as a training device."

Xianyun looked around at the mechanical parts and found that none of them matched the drawings.

The blueprints themselves are antiques from thousands of years ago, not to mention the mechanical parts.

"I'll get it for you from the warehouse."

"Wait, Sister Xianyun. The drawing I saw in my dream is different from this one."

"what?!"

Xianyun was stunned for a moment, his eyes full of surprise.

"To be precise, it's a stack of similar design drawings. They are very similar to yours, but there are also major differences," Li Qingping explained.

"Can you draw it?" Xianyun asked impatiently.

"I did write down a few of them, just wait a minute."

Xianyun brought paper and pen to Li Qingping, placed them on the table, and even gave him his original seat.

Li Qingping picked up a pen and drew the diagram he had in mind.

There are three pictures in total. The things drawn on them are very similar to the mechanisms on Xianyun's drawings, but many differences can be clearly seen.