Space restrictions had barely recovered for three breaths when a figure flickered in the second level of the hall, and Gui Mu's form materialized out of thin air.

He was about to head to the third level, but his brow suddenly furrowed as he glanced towards the left side hall, a hint of doubt flashing in his eyes.

However, he quickly shook his head, retracted his gaze, and with a sway of his body, stepped into the passage to the third level.

At the same time, within a remote street alley, a blurred light flashed, and Han Li's group emerged from within.

As soon as he appeared, Han Li couldn't help but frown, a touch of discomfort surfacing on his face.

"Just a wall apart, how can the difference be so great? Not only is the air in the Luo Sheng District turbid, but the baleful aura is also much stronger than before," Hu San said, wrinkling his nose.

"Moreover, the temperature in this Luo Sheng District seems to be much higher than before," Shi Chuan Kong also added.

"Baili, do you have any news from the Reincarnation Domain regarding the situation within Asura City?" Han Li asked Baili Yan.

"The Gray World is different from the Immortal World; the divisions between domains are deep, and news is relatively isolated. The Nine Nether Domain is extremely xenophobic, so even less information circulates," Baili Yan said, shaking his head.

"Regardless, let's head towards the border first. As long as we overcome this hurdle, we can enter the Soul Cleansing District," Han Li said after a moment of thought.

"The layout within the Luo Sheng District is a bit strange. There are many uniquely shaped ring-shaped buildings, but they are not marked on the map, so I don't know what they are used for. If we go straight towards the border, we will have to pass through these buildings along the way," Mo Guang said.

"There's not much we can do about it. Be careful to avoid them and get through as quickly as possible," Han Li replied.

Having said that, Han Li and his group, led by Mo Guang, made their way towards the border.

The ranks of You Nu became increasingly dense along the way. Within many fortress buildings, some cultivators whose cultivations were comparable to the mid True Immortal stage could be seen. The defense here was even more stringent than in the Bai Zang District.

It took Han Li and the others a great deal of effort to finally reach the border area near the Soul Cleansing District.

"Stop! You cannot go any further," just as they were planning to use Hu San's methods to conceal their tracks and approach, Mo Guang suddenly stopped them.

"What's wrong?" Han Li and the others stopped abruptly, feeling nervous at first, then asking.

"Take a look over there," Mo Guang said, pointing ahead.

Han Li focused his gaze and his brow furrowed tightly.

He saw that on the ground near the city wall, there was a scarlet eyeball as large as a watermelon embedded in the ground. Further away, there was an identical eyeball every so often.

Even more chillingly, the black city wall in the distance was also densely covered with scarlet eyeballs.

"Damn it, there are so many Asura Ghost Eyes..." Baili Yan sighed.

"Asura Ghost Eyes? Are they difficult to deal with?" Hu San asked, confused.

"This object is a strange eye from the Asura Great Demon's body. One head has three thousand six hundred eyes, capable of recognizing all kinds of illusions and transformations. I'm afraid your illusion techniques will be useless," Baili Yan said, shaking his head.

"In that case, we have no way to approach the city wall silently, let alone use spatial laws to cross it," Shi Chuan Kong also said with a frown.

Just as his words fell, the nearest "Asura Ghost Eye" suddenly rotated and looked towards them.

Han Li and the others immediately fell silent, suppressed their breaths, and retreated backwards.

Having found another secluded place to hide, Han Li opened his mouth to speak when he heard a loud "boom" suddenly coming from not far away.

The group thought their tracks had been exposed and were all startled, quickly looking around.

"Over there..." Baili Yan said, pointing in a direction ahead with a strange expression.

Han Li followed the direction he was pointing and saw that it was one of the nameless ring-shaped buildings that Mo Guang had mentioned. Above it, a mushroom-shaped black cloud was rising, lingering for a long time.

"Mo Guang and I will go and investigate. You conceal yourselves and wait here for a while," Han Li said, frowning in silence for a moment.

"I'll go with you. Something seems unusual over there," Baili Yan said in a low voice.

"Alright, then Hu San and Shi stay here and wait," Han Li hesitated briefly, then nodded.

"Be careful," Shi Chuan Kong said, his eyes slightly narrowed.

Han Li and the other two flickered out, showing blurred traces in the streets and alleys, avoiding the surrounding watchtowers, and quickly reached the high wall of the ring-shaped building.

Reaching the front, Han Li found that these ring-shaped buildings were even taller than they had appeared from a distance. Intricate runes were carved into the walls. Fortunately, they were all runes used to strengthen the walls and had no warning function.

The three concealed their figures and slipped into the building, finding it quite empty inside. In the middle was a black plaza with a large area, on which were scattered some black boulders several feet high, all riddled with holes and in ruins.

The one in front of Han Li and the others was relatively intact, but a piece the size of a human head had been blasted off, and wisps of white smoke were rising from the break.

While the three were puzzled, they heard a "rumbling" sound suddenly coming from the ground on the other side of the plaza. The ground split open, revealing what seemed to be an underground passage.

Immediately afterwards, several figures slowly ascended from below and came to the plaza.

The figures were quite short, appearing to be only half the height of ordinary humans. They were naked to the waist, revealing bluish-black, scaleless skin. Their faces were also quite ugly, with pointed ears, protruding fangs, and bald heads with only a tuft of black hair growing in the center.

However, although they were short and stocky, their muscles were very bulging, and their arms were exceptionally thick, with circles of cyan copper hoops around them, giving them a somewhat ferocious appearance.

Han Li frowned slightly, feeling that the alien races looked somewhat familiar. He seemed to have seen descriptions of races similar to them in ancient books, but he couldn't quite remember them for the moment.

"What heavy karma fire aura!" Baili Yan looked at the crack in the ground and suddenly frowned, muttering to himself.

"What?" Han Li's attention was on the short, stocky aliens, and he didn't hear clearly.

At this time, the leader of the short, stocky aliens, with the most copper hoops on his arm, a total of five, looked around the entire plaza, his expression quite angry, and roared at the others behind him:

"This power is too weak, it's completely useless. How can those adults of the Nine Nether Race be able to look upon it? Go, test the one with the largest dose."

As soon as his words fell, one of the short, stocky tribesmen immediately stepped forward tremblingly, holding a black ball shaped like a sweet potato in his hands.

"Elder, please move underground to avoid it," after taking two steps, he stopped and looked back at the leading alien.

Hearing this, the latter turned around with a gloomy expression and walked down the passage, and the others quickly followed.

Han Li and the others frowned slightly, looking at the man with some puzzlement.

They saw the alien muttering silently for a while, then suddenly raised his hand and pressed down on the "sweet potato" in his hand, then threw it towards the center of the plaza.

Seeing that lines of light suddenly appeared on the surface of the sweet potato, Han Li knew something was wrong and quickly raised his hand, and a shield in the shape of a dark green tortoise shell floated out, blocking in front of him.

Immediately afterwards, he heard a loud "boom" sound.

A huge black flame burst out from the black sweet potato, first contracting sharply, then suddenly expanding, turning into a sea of black fire surging in all directions.

The short, stocky alien who released the sweet potato wanted to run back to the ground passage, but as soon as he reached the entrance, he was engulfed by the rolling, huge black flames. His entire body instantly melted, turning into a pool of liquid on the ground.

The surfaces of the huge black stones on the plaza were also rapidly corroded by the black flames, turning into lava-like black liquid, slowly flowing down, melting away one after another.

The black boulder in front of Han Li and the others was no exception and soon flowed all over the ground under the burning of the black flames.

The tortoise shell shield in front of the three stubbornly resisted the black flames, but it was also making "hissing" sounds, emitting bursts of smoke.

"Go," Han Li said in a low voice, his brow furrowed.

As soon as his words fell, the three figures immediately pulled back and jumped out of the high wall.

There were no more black stones in the plaza, only black flames surging and colliding with the surrounding walls, making booming sounds. A black mushroom cloud also rose above, only several times larger than before.

At the same time, the various runes engraved on the plaza and walls began to light up with dark light, emitting strange fluctuations that collided with the black flames, gradually grinding away the momentum of the black flames until they were completely exhausted.

Han Li and the other two returned to the place where Shi Chuan Kong and the other two were hiding. Hu San immediately asked with a puzzled expression: "What happened? How did you cause such a big commotion? We thought you were exposed and were about to go over there."

"That ring-shaped building is a training ground, seemingly used specifically to test Gray World magic treasures," Han Li said, waving his hand.

"Then that just now..." Shi Chuan Kong frowned and asked.

"If I'm not mistaken, it should be a bursting magic treasure made of karma fire. Its instantaneous power is not weak and can pose a considerable threat to ordinary True Immortal realm cultivators," Mo Guang said, his eyes slightly narrowed.

"In that case, those short, stocky aliens should be the legendary Woren race, who are extremely skilled in crafting," Han Li said thoughtfully.

"Woren race? The ancient books I saw before recorded that these guys were exterminated thousands of years ago, weren't they?" Shi Chuan Kong suddenly remembered something and exclaimed in surprise.

"It seems that the extermination was false, and being secretly hidden by the Nine Nether Race to craft magic treasures for themselves is the truth," Han Li said, shaking his head.

"In that case, that rumor is true..." Baili Yan suddenly said, his eyes flashing.

"What rumor?" Hu San asked quickly.