Dark Survival: I can improve my proficiency

What does it mean!

Whether it is You Shulan or Tan Qianqian.

They all understand that black iron stone is an important material for upgrading buildings.

They searched for a long time, but did not find any trace of black iron stone.

But why.

Now, there will be multiple units of black iron stone in front of Ye Liuyun.

"Actually,"

There is nothing to hide, Ye Liuyun still told the two women about the transaction with Wu Feng just now.

At this time.

The two women are a little bit amused.

They didn't expect that the materials that they had been looking for so hard would be obtained in this way.

Life is really hazy!

"Anyway, the materials are still found!"

At this time.

Tan Qianqian also said with expectation.

"Does that mean that our buildings can be upgraded again?"

Even when eating dinner, I don't care.

I am looking forward to Ye Liuyun upgrading the building to level five!

"Yeah!"

Ye Liuyun was also looking forward to what he would get after upgrading the building to level five.

"Stand behind me!"

Took out the upgrade drawings that had been stored.

Said to Tan Qianqian and You Shulan.

The two girls stood behind Ye Liuyun sensibly.

Without any hesitation.

"Upgrade!"

With the consumption of various materials, the upgrade drawings of the level five steel fortress in Ye Liuyun's hand turned into light spots.

Floated towards the building in front of him.

"Boom! Boom!"

The next moment, the whole house began to shake!

"Roar!"

The fire pattern lion, who was originally catching up on sleep in the fence.

All woke up at this time and looked at the shaking building anxiously.

"Quiet!"

It was still Ye Liuyun who gave the order.

The fire pattern lion was quiet and obedient.

Although I don't know.

What is the situation of such a change, but out of trust in Ye Liuyun, the fire pattern lion is no longer restless.

"Boom! Boom!"

Such vibrations did not last long.

Soon, the changes in the building began to slowly stop.

The original two-story stone house has completely changed.

From the outside, it looks like a pitch-black object.

"Kengkeng!"

Ye Liuyun raised his hand and knocked.

Although it looks like steel, the knocking feel is not steel, but it is very solid.

"Is this a level 5 building?"

You Shulan and Tan Qianqian's eyes also became curious.

"Buzz!"

Just then.

The survival code on Ye Liuyun's body began to vibrate continuously.

No need to think, this must be the sound of the prompt.

Take it out and take a look, it is indeed the case.

"Congratulations to 'No. 0071', the first person to successfully upgrade the building to level 5!"

The first person to upgrade a building will always cause a lot of noise.

However.

Looking at this familiar number, everyone in the world chat was speechless for a while!

"No. 0770: I knew it was this boss again!"

"No. 8991: If this boss is not the first to upgrade the building one day, I will feel strange!"

"No. 4909: Boss, please take me with you!"

"No. 7535: Cooperation? Anyone? Come to my shelter!"

"No. 4693: Don't think about fooling people. Now everyone knows that if you go to someone else's shelter, you will sign a master-servant contract!"

"No. 2209: That's right, don't think about fooling people!"

"，，，,"

It can be seen that everyone is really used to Ye Liuyun's number.

Moreover, everyone knows that when you go to someone else's shelter, there will be a master-servant contract.

Of course, even so, there are still many people who want to fool others to come to their own shelter!

"It's worthy of him!"

Zhao Hu, seeing that Ye Liuyun was the first to upgrade the building again, couldn't help shaking his head.

He said with a sigh.

After realizing the gap between him and Ye Liuyun.

Zhao Hu has understood that sometimes, the gap between people is often greater than the gap between people and dogs.

The building on Zhao Hu's side is also a level 4 two-story stone house.

At the same time, two days later, Zhao Hu successfully found the architectural drawings of the level 5 steel fortress.

But!

"What on earth is this black iron stone!"

He couldn't help scratching his head.

Iron blocks are okay, I can collect them slowly, earth crystal stones and so on, although I don't have them.

But after all, I have found thunder crystal stones, I think I can find earth crystal stones if I look for them slowly.

But.

These ten unitsBlack iron stone is what makes Zhao Hu most confused.

I have never heard of it. What kind of material is this?

Moreover, with so many people under his command, they have been searching for so many days, but they have not found any trace of black iron stone.

"Forget it, I will find it slowly!"

Besides that, Zhao Hu really can't think of any other way to find black iron stone.

,,,

"Wow! Our home seems to be bigger!"

The decoration inside the new shelter has not changed much, it is still the same as before.

It's just that the area has expanded a lot.

Fortunately, Ye Liuyun set the wall large enough at the beginning, so there is no need to worry about anything.

"By the way, did you get any rewards for upgrading the building this time?"

You Shulan looked at Ye Liuyun curiously.

The first person to upgrade the building will get a reward.

There should be one this time.

"I haven't seen it yet!"

At the same time, Ye Liuyun also wanted to know what the reward would be this time.

He checked it out immediately.

"Obtained: Level 6 building upgrade blueprint! Holy Fire Crystal! Detection!"

First, the upgrade blueprint for the next building, which is not surprising.

"Item: Level 6 building upgrade blueprint!

Effect: You can upgrade a level 5 building to level 6!

Required materials: Black Iron Stone × 200! Earth Crystal Stone × 2! Gold Crystal Stone × 1!"

Two hundred units of Black Iron Stone, plus two Earth Crystal Stones and the gold crystal stone that he had never seen before.

There are a lot of materials.

It takes a lot of time to collect these things, but there is no need to rush.

"This can only be collected slowly!"

You Shulan, who also saw the upgrade blueprint, shook her head helplessly.

"Are there any other things?"

"I got a skill, detection?"

"Skill?"

If it is a skill, it should be special.

Ye Liuyun looked at the effect.

"Detection Technique: It can detect whether there is a treasure chest within a 100-meter radius and mark its location!"

Can it only detect treasure chests?

It's not bad.

Ye Liuyun tried it.

Nothing.

"I forgot that treasure chests will only be refreshed during the day!"

At night, no treasure chests are refreshed.

He shook his head and didn't care about such things.

"But! There is still one material!"

Identification!

"Item: Holy Fire Crystal!

Effect: Super rare material, a stone that hosts a powerful flame power!"

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