The old man wore a gray dress and kept his head drooping. He looked as if he was not awake, listless, because he was still holding his head at this time, so Xiao Yao couldn’t see clearly what the other person looked like, of course. It doesn't matter what the old man looks like.

In front of the old man, there was a snakeskin bag, and on the snakeskin bag was a weird long knife.

It is weird because the blade of this knife is a black dragon, and the dragon head acts as the handle. Every scale on the dragon knife looks so clear. Just looking at the knife, Xiao Yao can feel it. To a majestic momentum, as if the surrounding air had become cold at this moment.

"Brother Xiao, what's the matter?" Nan Tianyuan next to him asked in a low voice.

"This knife looks a little weird." Xiao Yao whispered back.

Nan Tianyuan turned his face and glanced at the **** knife. After looking at it for a long time, he didn't see any clues. He could only shook his head: "Brother Xiao, I really didn't find anything unusual about this knife. It can only be regarded as a mortal soldier, without even aura."

"No spiritual energy?" Xiao Yao was a little surprised, "But, how do I feel that there is energy flowing in it?"

Nan Tianyuan knew that Xiao Yao was not the kind of person who likes to joke, so he immediately turned his face to look at the knife, but it was still the same as before. He didn't know how long he looked at it, and he didn't feel what was so special about this knife. In different places, is there something wrong with your own perception? After thinking about it carefully, he shook his head again. It's okay if there is a problem with his own perception, but is there a problem with everyone's perception here?

If this knife is really not easy, why is it placed here and no one cares about it?

While Nan Tianyuan was thinking about this, Xiao Yao had already walked up to him, and crouched down, carefully observing the big knife.

The distance is getting closer and longer, the familiar feeling becomes clearer and clearer.

Looking at Xiao Yao's appearance at this time, Nan Tianyuan didn't dare to bother with words.

Suddenly, Xiao Yao raised his head, looked at the old man, and said every word: "I want your knife."

In fact, even now, Xiao Yao has not figured out the real mystery of this knife, but he believes that this knife is worth taking away by himself!

"Huh?" The old man suddenly raised his head, the skin on his face was wrinkled, it looked like dry tree bark, his eyes were gleaming, and his eyes were full of surprise when he looked at Xiao Yao." Are you interested in this knife?"

"Yes." Xiao Yao nodded heavily.

"Haha!" The old man suddenly laughed, "Why are you interested?"

Xiao Yao frowned and said, "I'm just purely interested, and I think it looks good, can't it?"

The old man squinted at Xiao Yao, his eyes filled with suspicion and disbelief: "There are so many people at the trade fair, and countless people pass by me, but you are the only one who stopped and was interested in this knife. Is it just because this knife is good-looking? Besides, the good-looking thing here is not just this knife."

Xiao Yao was already a little impatient: "I'm just interested in this knife. That's it. Why do you talk so much? If you don't want to change it, why bother to say so much, and why bother to come to the trade conference?"

"I didn't say I didn't want to change it out!"

"Since you want to change, what are you doing for a long time to show your eloquence?" Xiao Yao said with a frown.

The old man took a breath.

Damn, are these young people so angry?

"Forget it, since you want it, you can take it away, but it's not that simple to change my knife." The old man said with a smile.

This time there is no need for Xiao Yao to express his opinions, and Nan Tianyuan immediately expressed his high dissatisfaction.

"I said old man, don't you want to start asking prices with this piece of rotten iron?" Nan Tianyuan said angrily.

The old man stared at Nan Tianyuan, his eyes were almost staring out: "Do you think this is just broken copper and broken iron?"

"Hey, it's not just me who sees it this way. Many people around me see it this way. Otherwise, why don't you put this knife here, but no one has come to take a look at it? ?" Nan Tianyuan said.

The old man snorted coldly and said, "Am I forcing you to come and buy it again?"

"..." Nan Tianyuan suddenly felt that what the old man said was reasonable, and he was a little speechless.

To be honest, the other party really didn't force him and Xiao Yao to buy this knife.

This is exactly a matter of willingness to fight and suffer.

"I'll exchange ten eight-level pills for you, what do you think?" Xiao Yao said sternly.

"Huh?" The old man was taken aback, laughed haha, waved his hand, and said, "I want twenty seven-pin pill."

"My grass! Old man, are you crazy? Do you know what you are talking about now? No, I'm really curious, what are you thinking about in your mind? Just your broken knife , If my elder brother can see it, it is already giving you great face. You want twenty seventh-grade pills?" Nan Tianyuan was going crazy.

He looked at each other's eyes as if he was looking at a neuropathy.

The old man squinted at Nan Tianyuan, and finally fell on Xiao Yao's body.

"I don't have to exchange it with me. If you think this is worthless to you, you can go back now." The old man said seriously.

Nan Tianyuan on the side hurriedly pulled La Xiaoyao and said, "Brother Xiao, we don't need to pay attention to him. Let's go straight away. Anyway, there are still many good things in front of me. Twenty seven-grade pills are all right. We’ve changed the spirit soldier, let’s not waste time here."

Xiao Yao turned his face to look at Nan Tianyuan, shook his head, and looked still.

After taking a deep breath, he took out twenty seven-pin pill from the ring.

"This is yours," Xiao Yao said.

"Did you really agree?" The old man looked at Xiao Yao, somewhat surprised.

"Yes." Xiao Yao suddenly became a little unhappy, "Are you going to regret it?"

"Haha! That's not the case. In fact, the reason why I said that I want twenty seven-pin pill, I just want to test it out." The old man said with a smile.

"What do you want to test?" Xiao Yao asked.

"Take a test, can you really understand the value of the black dragon knife? It seems that you really know the goods. You can take the knife. I don't want anything." The old man said.

"Nothing?" Xiao Yao was a little surprised.

Nan Tianyuan on the side was also a little trapped.

He really didn't know what the old man was planning to do.

Why does the other person seem to be incomprehensible and incomprehensible about what the other party says and does?

Could this old man really come from another planet?

"What's the matter, don't I want anything, isn't it a good thing for you?" the old man asked.

Xiao Yao shook his head: "If you really don't want anything, I will feel pressured instead, which means I owe you a favor."

"Haha! Not bad, you still know this?" the old man said, "I just want you to owe me a favor, can't it?"

"What the **** do you want to do?" Xiao Yao was going crazy.

"Don't do anything, just want you to owe me a favor, what's wrong?" the old man asked.

Xiao Yao picked up the black dragon knife and glanced at the old man.

"Okay, I promised you." Xiao Yao said, "I owe you a favor."

Just when Xiao Yao and Nan Tianyuan were about to leave, they were stopped by the old man again.

"Wait a minute, leave your name. After all, you owe me a favor. If I want to use this favor in the future, how can I find you?" the old man said.

Xiao Yao turned his face, glanced at the old man, and said, "Ding Liuzhi."

The old man shook his head.

Xiao Yao's heart suddenly tightened.

The old man walked slowly in front of Xiao Yao, as if walking a little faster, he would immediately fall to the ground.

After waiting for him, the old man said, "What I want is your real name."

"..." After hearing these words, Xiao Yao knew why he felt nervous before.

"This is my real name, is there any problem?" Xiao Yao said bitterly.

He didn't know if the other party really saw the clue, or was fooling him in this way.

The old man was a little unhappy: "If you have to say this, you should return the Black Dragon Blade to me. I don't want to see you who are so insincere."

Hearing that the other party had already spoken to this point, Xiao Yao knew that he could not continue to hide it.

"My name is Xiao Yao."

"Xiao Yao?!" The old man was taken aback for a moment, then showed a look of sudden realization, and nodded slightly, "No wonder, I know...Okay, you can go!"

The old man waved his hand.

Xiao Yao was silent for a long time, turned around, and left with Nan Tianyuan.

Although he didn't know who the old man was, he knew that this old man was definitely not easy.

Moreover, he also has a feeling that in the future, he and this old man will still have the opportunity to meet.

"Brother Xiao, this old man can see through our disguise, do you think he will tell the people at the trade conference?" Nan Tianyuan said worriedly.

After all, Xiao Yao entered the trading conference without an identity. If this matter is disclosed, I am afraid he will die here.

Xiao Yao smiled and shook his head: "Don't worry, that old man will definitely not do this."

"Why?" Nan Tianyuan scratched his head, really wondering where Xiao Yao was confident.

"If he really did this and I died too, wouldn't the favor I owe him be meaningless?" Xiao Yao said with a smile.

Nan Tianyuan gave a wry smile.

"You don't need to be so cautious. That old man is not a fool. He doesn't have to harm me like this." Xiao Yao said, "Moreover, I believe he must have no malicious intent towards me.

"I hope so." Nan Tianyuan nodded, but he was still a little nervous.