Sitting in the sedan chair, Chen Yu only felt a sense of flying clouds and fog, and then reached his destination.

When the car curtain was lifted, a huge mansion appeared in front of Chen Yu.

The four sedan bearers who brought him stood motionless at the door like wooden stakes.

No way, Chen Yu had to enter the mansion alone.

Through a porch, Chen Yu enters the hall.

This mansion is vast and empty, giving people an inexplicable chill.

There was no one in the whole house.

The cool wind brought a biting chill, which made Chen Yu feel whether he had arrived at a shady house.

Just when Chen Yu felt confused, a voice came.

"Chen Yu, you're here!!!"

The voice fell, and master Xu Dong's figure appeared in front of Chen Yu.

"Old Xu, is this...?" Chen Yu asked curiously.

"Come with me and you'll know in a moment!" said master Xu Dong, taking the lead in leading the way, while Chen Yu followed master Xu Dong honestly.

All the way, they came to a secret palace.

When following master Xu Dong's footsteps, Chen Yu tried to remember the direction of the road, but even if his spiritual strength had reached the level of never forgetting, he was still dizzy and swollen by the road of the mansion.

If master Xu Dong had not led the way, he could not find the secret hall in front of him.

After entering the hall, Chen Yu felt a sense of depression.

Looking up slightly, Chen Yu finally found out where the pressure came from.

In the middle of the hall sat a middle-aged man in red robes.

This man is strong and ordinary, but his eyes are very deep and frightening.

"The protector of Dharma, the person I told you has arrived!" master Xu Dong said respectfully.

Hearing the speech, Chen Yu felt a slight shock in his heart.

Chen Yu has guessed about the person who can make master Xu Dong so respectful.

It is said that master Xu Dong is a Dharma protector elder behind emperor Tianzong.

In addition to what master Xu Dong just called, the identity of the person in front of him is ready to be revealed——

Anyun mountain, the third Dharma protector of Huangtian sect!

Seeing Chen Yu's appearance, an Yunshan's eyes flashed a trace of surprise.

"This is the person you want me to recommend?! so young?!" an Yunshan's voice is very peaceful, but the dignity in his words is still shocking.

When Xu Dong heard the speech, he quickly explained: "protect the Dharma. Although Chen Yu is young, his teacher is a genuine tool refining immortal. With him in this refining, the success rate will be greatly improved!"

After master Xu Dong's voice fell, an Yunshan couldn't help but cast his eyes on Chen Yu and observed carefully.

Then he nodded slightly, smiled and said to Chen Yu, "well, I look forward to your surprise!"

An Yunshan did not question Chen Yu's ability. He believed master Xu Dong's words.

It can be seen that Anyun mountain is a big man who doesn't doubt people and doesn't use them.

"I will do my best!!!"

Chen Yu also answered carefully about the expectations of an Yunshan.

He knew that the person in front of him was absolutely no small matter. Therefore, he responded to an Yunshan's words with implicit respect, but without showing any attachment and flattery.

At the next moment, master Xu Dong motioned Chen Yu to follow him to the place of refining weapons.

There are seven rooms in the place of refining utensils. Master Xu Dong took Chen Yu into the middle room.

In this room, there are countless refining utensils and materials.

"Old Xu, what can I do?" Chen Yu asked curiously.

"Make these parts according to the requirements of this drawing." after that, master Xu Dong took out several drawings and explained some details of Chen Yu's drawings to him.

After getting the drawing, Chen Yu first felt the extraordinary paper in his hand.

Ordinary paper can be easily torn by ordinary people with a little force.

This kind of paper is only used to record ordinary things.

Most of the more advanced papers are not easy to tear, but they will be destroyed in case of fire and water.

This paper is used to record important events.

The drawings that are really used to record esoteric skills or complex smelters are the paper specially refined by the smelter.

This paper is impervious to fire and water, and cannot be torn by great force.

Everything recorded on this paper is extremely important. Even people who don't know the goods will subconsciously protect it when they see this paper.

The paper, which is one level higher than the paper of the refiner, is called the note of God.

This paper comes from the inheritance of God. No one can make it, and no one knows how to make it.

However, everything recorded in this God's note is a sacred object. Anything falling into the secular world can cause a bloody battle.

There is no doubt that the paper in Chen Yu's hand is the God's note. He knows the value of this paper. Chen Yu also knows how important the refined thing is.

After carefully browsing the patterns recorded on the paper, Chen Yu had a certain understanding of what master Xu Dong wanted him to help refine. At the same time, he also understood why master Xu Dong asked him for help.

Although the parts that master Xu Dong asked him to refine were very small, on the drawings, the refining accuracy of this part, as well as the melting and matching of materials, reached a level that can be called abnormal.

The whole refining is not allowed to have a trace of defects. Not only that, the number of these parts is up to thousands, and these thousands of parts must be completely consistent in order to be successful.

As like as two peas, the ordinary refiner is very difficult to refine these parts, let alone refining thousands of identical ones.

However, it is clearly indicated on this drawing that the refining of thousands of parts must ensure that there is no error in size, weight, heat and accuracy. Once an error occurs, the assembly of the whole fairy will fail!

Before meeting Chen Yu, master Xu Dong didn't think anyone could do all this, but when he saw Chen Yu's refining device, he had hope for this harsh condition.

In his opinion, if Chen Yu is given enough time, he will be able to do all this.

"How's it going, Chen Yu?! is there a problem?!" master Xu Dong asked seriously.

"No problem, but the refining process takes some time and energy, and it is inevitable to waste some materials," Chen Yu replied.

"You don't have to worry about the materials, as long as you can meet the requirements on the drawings!" master Xu Dong said excitedly.