Young, handsome.

There is a bit of cynical laziness between his eyebrows, and his eyes show a sharp mang from time to time.

It was a calculating and cunning look.

When dealing with this kind of person, suffering a loss is a guaranteed option.

Ashina quickly suppressed the shock in his heart, he came to pay tribute, an envoy, and not a prisoner!

The Tang people treated him in a rude way, appeal, it is a must!

"Distinguished guests from afar, eat a bowl of iced tea and then enter the customs."

Li Ran smiled as if he was familiar, waved his hand, and his entourage brought out a bowl of iced black tea, and the best Keemun black tea with rose dew was fragrant.

Ashina was a little confused.

Such a good attitude, such a refreshing gift, it looks good, much better than the maxi milk tea on the grassland.

The kindness that came to his face made his tough attitude soft for no reason.

Perhaps, these strange sunlight are just unintentional......

I happened to be a little thirsty from the roast, so I hesitated to take the porcelain bowl and drank it all.

Well, it smells so good!

"The mirror is quite useful, I forgot to remind you, don't go in the direction of the light, it will be baked."

"Poof!"

A mouthful of tea squirted out, and the anger in Ashina's heart instantly came up.

Just as he was about to break out, Li Ran had already pointed to the sign erected next to the official road.

"But you're too careless, doesn't it say 'bright light is dazzling, avoid the road', pay attention next time, fortunately I came in time, otherwise you will have to bake a layer of skin."

Ashina looked in the direction of his finger, and sure enough, there was a sign with those words written on it.

The furious words were swallowed back instantly.

Although he is a Turkic, he is not stupid, he can be selected as a tributary envoy, and he knows a little bit of diplomatic common sense.

This matter is not reasonable.

“…… I have long heard that the Tang Dynasty Immortal Master has the ability to pass through ghosts and gods, and when I saw it today, it really deserved its reputation. ”

Quan Dang suffered a dumb loss, but Ashina took the opportunity to ask, "That strong light is a spell?" ”

"Sort of...... If physics is also algorithmic. ”

Li Ran half-jokingly stood sideways, "Why don't we enter the customs?" ”

"Good!"

Ashina didn't dwell on the clouds, he came to peek at the reality of the Tang Dynasty, the sooner he went deep into the Central Plains, the better.

It's just that after walking dozens of steps, the whole person is not good again.

What's the point?

It has long been heard that the city wall of the Tang Dynasty is high and thick, the sword and axe cannot be broken, and the war horse cannot be crossed, which is the best defensive barrier.

And the Xiao Pass in front of you is said to be a well-known checkpoint in the world, why the height of this city wall is only two stories high, and you can go up by taking a ladder.

He looked around in a hurry, and all kinds of stone and wood buildings stood on both sides of the city wall, which was extremely strange and did not know the function.

For things in the unknown realm, Ashina Yun was a little weak-hearted, and he was dumbfounded as soon as he stepped into the hinterland of the Tang Dynasty.

Gotta find a way to get something out of the kid's mouth.

The idea was quickly decided, but Ashina had a plan in his heart...... No matter how awesome this Tang Immortal Master is, he is just a child who is less than a weak crown, in terms of scheming, how can he compare with him, the wolf of the steppe?

"Distinguished guests, are you tired all the way, why don't you rest here for half a day before heading east?"

What do you want to come, I am worried that I can't find a suitable reason to stay in the checkpoint, this young man actually takes the initiative to keep people!

"Okay, it's up to you." , Ashina agreed to come down, and his heart was relieved, and sure enough, he didn't have a hair on his mouth and couldn't do things firmly.

Li Ran immediately smiled and ordered his entourage to buy a banquet to entertain the envoys.

"It's still early, you can move around here freely, if you don't think I'm nagging, you can also be accompanied by me to walk around the gate."

"Then there is Immortal Master Lao!"

Ashina was almost speechless, such a thoughtful suggestion was as comfortable as a small padded jacket.

"In that case, let's go to the city wall to blow the wind first."

Li Ran was hospitable and took him to start the tour.

The two of them were thinking about the same thing at this time...... What kind of person is this, it's so deceitful.

"Distinguished guest, please see, is the city wall I repaired quite beautiful?"

Li Ran stood on the city wall that had only been painted not long ago, and knocked on the wall bricks, "In the past, those big bluestone walls were bulky and difficult to clean up, and they were easy to become brittle after a long time in the wind and sun. ”

"So I changed the walls and mixed the concrete with stones, and it worked great."

Ashina was stunned for a few seconds, and then said, "...... Concrete, that's what it is. ”

"A new material, similar to cement."

“…… Immortal, what is that cement? ”

"Haven't you already seen it, then, the official road outside the checkpoint, the cement material is used."

“……”

Ashina was speechless, he couldn't directly ask how the cement and concrete were made, such a straightforward way to get information, the other party couldn't see that he was afraid of being a fool.

"Well, these two things are quite fresh, why don't you give you some samples and take a good look?" In the future, when our two countries want to do business, you can just look for me, and I will give you a wholesale price. ”

However, he underestimated Li Ran's enthusiasm for high-rollers after all.

Giving away materials for free or something...... Is he possessed by the Emperor of Europe?

"Okay, okay, in the future, I will definitely make a deal with you."

Ashina was so excited that he almost stuttered, especially when Li Ran really gave him some cement and concrete samples.

Looking at these two unfamiliar materials, the whole person was curious and shocked.

In this world, there is such a thing as hard as steel...... And it's made by manpower!

Li Ran saw his changing expression in his eyes and smiled imperceptibly.

Obviously, this fool thought he was taking advantage, but in fact, he was deeply trapped...... There is no free lunch in the world, and free things are the most expensive.

"Well, that's good."

Li Ran knocked on the city wall, "It is strong and durable, the maintenance cost is low, and compared with the blue stripe stone wall, there are more possibilities for transformation and processing, I have installed several defensive ...... on it."

"Ahem!" , coughing came from behind him.

Pei Min's face was deep and indifferent, and Li Ran was suddenly dumbfounded, "Ha, look at me, I almost leaked my mouth when I was happy, the things on the city wall are all secrets, don't ask." ”

"Yes, yes, you Central Plains people often say that gentlemen don't peep into other people's secrets."

Ash Nayun had an understanding expression on his face, and secretly glared at Pei Min angrily, if it weren't for this kid who stirred up a good thing, maybe he would have spied on the secret information of the Tang City Defense.

"Hehe, look at what you said, we Central Plains people also said, entertain distinguished guests with sincerity, if you really want to open your eyes, I will show you a show or two."

As he spoke, he placed his palm on a raised iron ring somewhere on the city wall.

"Here, look at the power of this fire-breathing dragon."

"Immortal Master, no!"