Abyss invasion? As a demon cultivator, I laughed.

A mechanical sound rang in Chu Xiu's ears, and the surrounding scene began to become unreal, like a broken mirror. When he came back to his senses, he was already in the awakening space.

Chu Xiu touched his chin thoughtfully.

The difficulty of the dungeon was not high, and it was not challenging at all for him.

However, a large number of corpse ghosts needed to be killed one by one, and not a single one could be missed, which still took him some effort.

As a result, it took him about fifteen minutes to clear the dungeon.

As for the rewards, nothing was given except the basic rewards for completing the dungeon task, and the drop rate was pitifully low.

In terms of experience, it increased by about 9 points, which was a little better than he expected.

He was now 877 points away from upgrading, and he had to brush the dungeon 98 times to upgrade. If he brushed it continuously, it would take nearly 25 hours.

Acceptable!

Of course, he couldn't brush it all the time. Going to the dungeon would consume a lot of physical strength and mental energy, and he would not force the challenge when he was in a bad state.

This was not a game after all. There was only one life, and if it was gone, it was gone.

But even if we make a conservative estimate, a week is enough.

Moreover, as his proficiency increases, the speed will increase!

He doesn't feel tired. For a demon cultivator, not only should he be cruel to others, but he should also be cruel to himself. This is nothing.

Chu Xiu's main concern is the randomness of the dungeon.

Because every time a dungeon is created, monsters will be randomly spawned, and the birthplace will also be refreshed.

Theoretically, if you are extremely unlucky, it is possible to spawn a soldier-level or even a fierce-level monster in a normal-difficulty dungeon!

Of course, this probability is so small that it can be almost ignored, but if it happens too many times, it will always fail.

Like the group of people who led people to the dungeon at the gate of Chu Xiu's school, few of them can live to be over 40 years old.

Shaking his head, he didn't hesitate anymore, but immediately opened a new dungeon.

This time, he chose the [Difficult] difficulty.

In the difficult difficulty, the attributes of the corpse ghosts are almost the same as in reality, and the time switches from day to night, which further enhances the strength of these corpse ghosts and increases their number.

But for Chu Xiu, it is still a random killing.

Finally, it took twenty minutes to clear the level, and I gained 2 causal points and 13 professional experience points.

It was more efficient, but not much.

Chu Xiu was a little tired at this time. He returned to reality and rested for half an hour, and then continued to challenge the more difficult [Nightmare] copy.

At this difficulty, the physique of the corpse ghosts even got an additional increase of about 20%, and the number doubled!

Now, Chu Xiu really experienced what the corpse tide that he didn't have time to challenge in reality was like.

As soon as he entered the parking lot, dozens of corpse ghosts came from all directions at the same time, covering the sky and the earth.

These simulated corpse ghosts don't know fear, won't retreat, and are more difficult to deal with than real corpse ghosts!

Although they can't hurt Chu Xiu, who has +7 energy-absorbing heavy armor and tough skin, to be honest, even if dozens of cockroaches jump over together, it's scary enough.

And Chu Xiu noticed that there are elites mixed in!

This made him not careless. To be safe, he began to lure monsters and clear them layer by layer, instead of rushing all the way down like in the first two difficulties.

With the help of [Silent Boots], he could quickly get away after killing monsters each time. Although it took a lot of time, he did not encounter any danger.

When he finally came to the bottom, the boss at the bottom was the 9th level elite 008-type corpse ghost that Chu Xiu had killed before!

After adding an additional 20% of physical strength, this guy was already able to compete with the elite ghost, although he was still not good enough in front of Chu Xiu.

But considering the circle of monsters surrounding him, Chu Xiu was still not careless. He divided the monsters into several times, used his high mobility to play guerrilla warfare, and when the monsters were almost killed, he took the elite ghost to kill them with one blow.

In the end, he gained 4 causal points, +33 experience, and was lucky enough to get a [standard] quality equipment.

But because it took a lot of time to lure monsters back and forth, it took a full hour and forty-five minutes to pass the level, and the efficiency was reduced instead.

"For a dungeon with difficulty [Nightmare], a team with C-level combat professions or above, equipped with [Excellent] quality equipment, and a full team of level 9 is qualified to challenge it."

"Moreover, the chance of failure is not low! If I guess correctly, those groups that lead dungeons should mainly lead dungeons with difficulty [Normal] and [Difficult]."

"If you want to brush [Nightmare] stably, you must have at least a full team of B-level combat professions!"

Even Chu Xiu smelled a hint of danger, such as a few more elites in the group of ghouls, or worse, the boss at the end of the level is directly brushed into the soldier level, then he will be in trouble.

"Although the probability of these situations is very small, they have to be considered, and the consumption of clearing the [Nightmare] dungeon is too high."

With so many ghouls rushing up, and elites mixed in, injuries are inevitable. Although they are minor injuries such as broken skin and bruises, if they continue to accumulate, it will also affect his upgrade speed.

For Chu Xiu, what he wants is to pass the level without injury.

Therefore, he decided to focus on upgrading the [Difficult] difficulty dungeons.

It would not be too late to upgrade [Nightmare] dungeons after training a few more ghosts.

With his mind made up, Chu Xiu stretched his tired shoulders, breathed a sigh of relief and returned to reality.

As soon as he returned to the room, he heard a knock on the door, and Li Xiu shouted outside the door: "Chu Xiu! Chu Xiu!"

Chu Xiu was startled. When your mother calls you by your full name, it usually means trouble.

He quickly opened the door: "Mom, what's wrong?"

Outside the door, Li Xiu glared at him angrily, and a tall figure followed behind him.

"Ah Chu." Zhang Qingshan greeted with a smile.

"It turns out to be Qingshan, come in quickly." Chu Xiu smiled and tried to get away with it.

But Li Xiu didn't want to let him go, and asked angrily: "What are you doing in there? I knocked on the door for so long and no one answered?"

Chu Xiu laughed: "Mom, I was too sleepy and fell asleep."

"Nonsense! Did you go to the dungeon?"

"How could that be possible? I just went into the awakening space to take a look. Oh, mom, you can rest assured. I won't take risks."

Li Xiu stared at Chu Xiu for a long time, then sighed: "Forget it, I can't control you young people. Qingshan, you should persuade him well. He is a supporting profession, so don't think about those things."

"Okay, Auntie." Zhang Qingshan promised.

Li Xiu shook his head and turned away. Zhang Qingshan closed the door and smiled: "You kid went to the dungeon, right? How long have you been back and you are going to the dungeon? You are so impatient?"

Chu Xiu did not comment.

Zhang Qingshan said again: "Why don't you call me? We can go to the dungeon together, and we can have more assurance for each other."

"I don't want to delay your progress," Chu Xiu smiled, "Tell me, why do you come to me so late at night?"

"What else can I do? Of course, I want to talk to you about exploring the abyss later," Zhang Qingshan waved his hand, "I was originally thinking whether you would never enter the abyss again, but now it seems that you will not give up."

Chu Xiu smiled. He grew up together and knew Zhang Qingshan too well. This guy is very loyal to his friends. This time, he probably wants to take him to upgrade together.

However, in a place like the abyss, it is already difficult to protect oneself. Does he have the qualifications?

"Qingshan."

Chu Xiu raised his head:

"What talents and professions have you awakened?"