I am a living immortal.

Chen Dong had the same expression, because he saw the door he was going to open. It was nearly three meters high, which was much higher than most city gates. He didn't know who this door was for.

Of course, the huge door was not enough to tremble these people.

What really shocked people was that the wall above the door was covered with densely packed talismans. Most of these talismans emitted fluorescent light, which gave people a bad premonition. What was hidden in there, or rather, what was sealed.

This immediately made many people back off.

It is better not to touch this strange scene. Once touched, if something inside is disturbed, without the Demon Slayer Bureau, they will all be doomed.

At this moment, even the man in the white mask hesitated.

Should I open this door or not? After all, it’s hard to say whether there really is an evil spirit sealed by the Demon Slayer Division in here.

The wind whistled, giving goosebumps to everyone present. Not to mention that they were underground, and the only passage was behind them, where did this wind come from? The wind rustled through the talisman paper, and the scene became increasingly eerie.

"To open or not to open?" someone asked tremblingly.

"Open!" said the man in the white mask.

Many people didn't even dare to step forward, let alone open the door. They looked at each other in hesitation.

The white-masked man urged, "Failure is one thing, but if you don't even dare to go up, then no matter what happens, you will have to take your money back."

But even after hearing this, no one dared to go forward to check.

Only Chen Dong was moved. This man was right. If he didn't even dare to go forward to inspect, then there was no reward. Without a reward, the deal he had discussed with the middle-aged man would naturally be off. If he tried to bring it up again next time, it would be basically impossible. So now he could only give it a try.

Thinking of this, he walked out of the crowd step by step.

After seeing that someone finally wanted to give it a try, White Mask breathed a sigh of relief. He was afraid that these low-class people would not even dare to touch it. If they touched it and it didn't open, he could explain to those people.

Chen Dong walked towards the door step by step.

I don’t know if it’s my illusion, but the whistling of the wind in my ears is getting heavier and heavier.

It took him a very long time to walk this short distance of just a few dozen meters.

It was so long that even someone as sensitive to time as him felt confused.

It wasn't until the door came into view that he felt a true sense of oppression. The talisman paper covering the door also stopped swinging in an instant. He took out his tool and tapped the talisman paper. There was no other reaction, so he breathed a sigh of relief and placed his hand on it.

As soon as he touched the talisman paper, it felt a bit rough and frosted, but otherwise there was no unusual phenomenon. Chen Dong peeled it off gently, and the talisman paper was peeled off easily, not as difficult as he had imagined.

Seeing this, everyone became bolder.

Several more people stepped forward, and without exception, these talismans were easily peeled off one by one. Looking at the talismans in their hands, no one could tell what they were. When half of the talismans on the door were completely torn off.

The outline of the door is revealed.

There was also a bronze lock on this door.

"Can you open it?" asked the young man in the white mask.

"We'll know after we give it a try." Knowing there was no danger for the time being, the group's minds became active. One person, using Qing Gong, soared into the air in a few steps, grabbing the huge bronze lock and examining it.

Someone prepared tools based on the holes revealed on the surface.

Chen Dong showed no sign of rushing to show off. He took a few steps back and studied the talisman paper in his hand. After being torn off, the patterns drawn with cinnabar had dimmed considerably, but they still seemed to flow before his eyes.

It was magical. I didn't know what this talisman paper did, but it was definitely something special. After looking around, he noticed everyone's eyes were focused on the lock hanging in the air. He secretly took a few pieces of paper, folded them up, and put them in his sleeve.

And they have already started unlocking the door.

He tried all sorts of tricks, but none of them succeeded, whether it was imitating the shape of the key, constantly using tools to pry the lock core, or even violently disassembling it.

It's all in vain even if you sweat all over.

Several others were observing like Chen Dong, and when they saw this, they sneered, "This lock is obviously not an ordinary item. How could it be possible to use such a simple technique?"

"How can you know if you don't try? Just watch from the side. If you have the ability, come and give it a try."

The man smiled contemptuously: "Just give it a try."

As he spoke, he took a few steps towards the door and kept touching it with his hand until he felt a noticeably strange touch and pressed it gently.

With a click, the mechanism clicked, and the moment the copper lock unfolded, stone pillars rose from the surface of the giant door, forming a perfect disk in the center. This disk began to rotate, and every time it turned, it made a "click" sound, as if counting down.

Until it rang nine times and then it was embedded in the door again, the whole door seemed to be activated.

Chen Dong, who was watching, felt something was wrong and shouted subconsciously: "Get out of the way!!" He jumped away first.

However, this shout was still a little late.

Before anyone could react, square stone pillars fell from the sky, smashing those who failed to retreat in time and were still standing there into pulp.

A bloody smell came from the underground space, but the flesh and blood mysteriously disappeared on the floor, leaving no place for burial.

There was silence at the scene, and those who survived were grateful.

Those who are dead are dead.

This was the first difficulty they encountered. The man in the white mask came to Chen Dong and asked, "What did you find out?"

"The sound of the disc rotating was heard one after another. When the last one was embedded in it, there was a slight vibration above my head and dust falling." Chen Dong said.

But before everyone could catch their breath.

The disc popped out again and started spinning.

The sounds of "click", "click", "click", and "click" struck everyone's heart like a death warrant.

A group of people ran desperately towards the passage they came from.

This passage remained open from the beginning to the end, and the Demon Slayer's original design wasn't for killing or anything like that, but to keep those who were interested in it away. Therefore, the disc, like a pendulum, would ring nine times to warn of danger, and the path we came from wasn't closed.

When danger comes, people's first reaction is to run away.

And the passage was there, so most people chose to escape. But the man in the white mask didn't think so. This design showed that there was something behind it.

He looked at Chen Dong.

"Open the door for me!"