The Seven-Fiend Netherworld Chains held countless laws of the Quasi-Immortal Realm within them. Beyond those laws, they also carried vast reserves of blacksmithing materials.

After Liu Wuxie broke them down, those materials immediately flowed into Nightmare City and began mending the damage. He needed only half a day for every crack to disappear completely.

The colossal Nightmare City compressed until it matched the size of a small town, and it continued to shrink. A true immortal art could expand until it covered the sky and shrink until it became as small as a speck of dust.

Liu Wuxie formed seals and injected countless immortal runes into Nightmare City, awakening it as the internal diagram surfaced and the runes within flickered.

Liu Wuxie engraved immortal runes with one hand and blacksmithing runes with the other. Those two sets of runes intertwined and wove themselves into a new diagram that sank straight into the city's core.

The artifact spirit couldn't put its feelings into words at that moment. Its former master had possessed enough strength to spend hundreds of thousands of years forging Nightmare City, yet it realized its new master surpassed him by over a hundred times.

That was especially true now. With blacksmithing runes and immortal runes feeding it, the artifact spirit also gained tremendous benefits. As its cultivation increased, it would command the immortal artifact more naturally in the future.

A thick layer of golden radiance wrapped around Liu Wuxie, making him look like an immortal descending into the mortal realm and leaving him infinitely close to the level of an immortal. He lacked cultivation now, not comprehension, and that shortfall remained the only gap.

If the eternal world hadn't vanished, he could've shortened his cultivation drastically. But reality didn't allow that, and the higher his cultivation rose, the longer each breakthrough would take.

"Master, Nightmare City has been activated. Should we initiate the transformation?" the artifact spirit asked, its voice echoing in Liu Wuxie's mind.

"Go on," Liu Wuxie said, lifting a finger and sending the final golden ray into the light sphere that represented Nightmare City's central core.

Nightmare City creaked and groaned as it reconstructed and overlapped, with countless small shops folding into a massive palace. The already massive palaces then expanded further, and the changes lasted about fifteen minutes before Nightmare City began shrinking again.

In the end, Nightmare City became a golden divine palace that settled into Liu Wuxie's palm. When his divine sense burrowed inside, he saw the artifact spirit sitting cross-legged in the central core, and with it present, no one could touch the city.

"Master, it will take at least one hundred thousand immortal runes for Nightmare City to evolve into a genuine immortal artifact," the artifact spirit continued.

An ordinary cultivator at the Heaven Gaze Realm only possessed about ten thousand immortal runes, and some at the lower levels didn't even have ten thousand. Liu Wuxie carried close to one hundred thousand immortal runes in his body, yet even that was not enough to upgrade Nightmare City into an immortal artifact.

Then again, he didn't feel anxious about it, as his immortal runes would multiply each time he broke through. He sensed that once he reached the fifth-level Heaven Gaze Realm, his immortal runes would likely rise to one hundred fifty thousand, or even one hundred sixty thousand.

In other words, Liu Wuxie would be able to upgrade Nightmare City into an immortal artifact once he made his breakthrough to the fifth-level Heaven Gaze Realm.

"Store!" Liu Wuxie commanded, placing Nightmare City into the desolate world so his immortal runes could temper it. Under the baptism of his immortal energy, its color grew more dazzling by the moment, and it would blaze with golden brilliance the instant he summoned it.

"It feels so satisfying!" the artifact spirit roared excitedly.

Though Liu Wuxie had refined it, it still kept its independent thoughts just as before. It had slept for over a hundred thousand years, and now it finally stood on the verge of getting upgraded to an immortal artifact, so the anticipation felt impossible to describe.

With Nightmare City gone, the future exchanges between the Martial Spirit Astral Domain and the Indigo Bamboo Astral Domain could only rely on the interstellar teleportation array. The surroundings soon turned empty as evil energy seeped out once more. The evil spirits had long since hidden in forests and mountains, no longer daring to show themselves.

"Time to head to the Outer Astral Spacetime," Liu Wuxie said, then vanished.

He didn't know much about the Outer Astral Spacetime because he had never gone there before, so he treated it as a trial. Not long ago, Mu Tianli had sent him word that the Heavenly Dao Society had dispatched over thirty people to the Outer Astral Spacetime to compete for treasures.

The Heavenly Dragon Sect also sent word that an elder at the quasi-immortal had led a team over, along with many experts. That message made it clear they had prepared seriously.

Recently, with the drastic changes in the layout of heaven and earth, quasi-immortals from the various sects had begun emerging from their seclusion.

For superpowers like the Heavenly Dragon Sect and the Grand Unity Sect with over a million years of legacy, they naturally had more than one quasi-immortal. Even so, those figures rarely appeared in public and emerged only during major upheavals or when the sect faced a life-or-death crisis.

Crossing through the starry sky, Liu Wuxie finally reached the Outer Astral Spacetime after a day. The so-called Outer Astral Spacetime lay beyond the four astral domains, stretching into a new expanse of starry sky.

This starry sky linked all four astral domains, allowing experts from those domains to enter this place.

The Outer Astral Spacetime was enormous and seemed boundless. Without any sense of direction, it would be easy for someone to lose themselves here and never find their way back.

Not long after Liu Wuxie stepped into the Outer Astral Spacetime, he saw a vast gate, and shock rippled through him. The sight alone took his breath away.

What a majestic gate! Where does it lead to? Liu Wuxie wondered.

The gate rose over three thousand feet tall, but that was only his estimate from a vast distance. When he approached, he realized it surpassed his imagination, standing taller enough to swallow the four astral domains. For some reason, the Sky Devouring Divine Cauldron began to stir the moment Liu Wuxie drew closer.

"What's going on? Why is there a reaction from the Sky Devouring Divine Cauldron?" Liu Wuxie murmured.

Countless meteors drifted through the region, and Liu Wuxie stepped from one meteor to another, each burst carrying him over ten thousand meters.

A massive crowd of cultivators was gathered three thousand miles away from the gate. They all came from the four astral domains. Among them were humans, demonic beasts, abyssal devils, ghosts, and more.

There were countless races present, including ones Liu Wuxie had never seen before. They had hidden in savage lands and deep mountains for countless years, only to emerge now at the appearance of this mysterious gate.

Liu Wuxie exclaimed as he saw members of a familiar race, "The Witcher Clan!" A faint smile lifted his lips the instant he spotted Gong Gong.

Perhaps drawn by his aura, Gong Gong also looked over and returned a faint smile. Yin was there as well, and the Witcher Clan had sent over a hundred people this time, each radiating a terrifying aura, and while their numbers were small, their overall strength didn't fall below that of a first-tier sect.

All of a sudden, Liu Wuxie felt as though a venomous viper had locked onto him. When he looked in that direction, he narrowed his eyes. "Ji Yuzhen!"

Ji Yuzhen had stood among the ranks when Meng Hong led an expedition to the True Martial Continent, yet Liu Wuxie hadn't seen him again after that. He didn't know Ji Yuzhen had remained with the Loulan Race and recruited many of them into the Immortal Slaughter Palace.

With most of the Immortal Slaughter Palace's experts slain, the sect's status had plummeted, but the moment the Loulan Race had joined them, they had restored their standing outright. Only Liu Wuxie had not yet received any news of it.

The Loulan Race's experts nearly charged over the moment they saw Liu Wuxie, but Ji Yuzhen stopped them.

The Heavenly Dragon Sect also sensed Liu Wuxie through his distinctive aura. Moreover, Liu Wuxie saw no need to conceal himself now that he had reached his current level of cultivation.

"Liu Wuxie, you're really here!" several experts of the Loulan Race shouted, grinding their teeth in fury.

The instant Liu Wuxie's name rang out, countless experts turned their gazes toward him. After all, Liu Wuxie was the most discussed name across the four astral domains, and his feats of slaying quasi-immortals, destroying the Immortal Slaughter Palace, refining the Heretic God's remains, and refining the Buddhist Clan's sarira had already become legend.

Each of Liu Wuxie's achievements had spread like wildfire, and many youngsters now treated him as their idol, dreaming of becoming the second Liu Wuxie.

The Heavenly Dragon Sect and the Heavenly Dao Society had gathered together, and everyone turned to look the moment they realized Liu Wuxie had arrived.

Liu Wuxie flashed forward and quickly joined the upper echelons of the Heavenly Dragon Sect, ignoring the Loulan Race's brainless taunts. He didn't want to bother with them for the time being, and if they dared to provoke him, he wouldn't mind wiping them out.

There were rumors outside that Liu Wuxie could handle only a single quasi-immortal for the time being. With so many quasi-immortals present, many believed they could kill him if they joined forces. That belief had emboldened far too many fools.

Many of the Immortal Slaughter Palace's quasi-immortals had emerged. Alongside the Loulan Race's quasi-immortals and the Grand Unity Sect's quasi-immortals, they had reached an agreement to ally against Liu Wuxie.

"Wuxie, you have finally come!" Luo Hai said, stepping forward and greeting Liu Wuxie warmly.

He was responsible for leading the Heavenly Dao Society's expedition. The Heavenly Dao Society had recently developed rapidly, with the addition of many unfamiliar faces. Their lineup looked far fuller than before.

Luo Hai introduced them one by one, and admiration shone in their eyes when they looked at Liu Wuxie.

Liu Wuxie returned every greeting politely, showing no airs.

"Wuxie, your master told me that you were coming to the Outer Astral Spacetime," Zhuge Ming said as he walked over. It had been some time since he had last seen Liu Wuxie, and he greeted him with a pat on the shoulder.

When Hua Feiyu had returned from the Elven Race, he had immediately dispatched many elders to the Outer Astral Spacetime.

"Greetings, elders," Liu Wuxie said, greeting them whether he recognized everyone or not. He remained a disciple of the Heavenly Dragon Sect, so he naturally maintained the etiquette of a disciple toward the elders.

"Let me introduce you. This is our Heavenly Dragon Sect's grand elder, Dong Wu," Zhuge Ming said as he introduced him. Even if Liu Wuxie didn't know every other elder, he had more or less seen them before during the meeting in the main hall.

Dong Wu was the only person Liu Wuxie had never seen before, and most importantly, Dong Wu had reached the Quasi-Immortal Realm with high cultivation.

"Greetings, Elder Dong!" Liu Wuxie said as he bowed. He could naturally see the smile on Dong Wu's face the moment he arrived.

"There's no need for such a ceremony. Your master has already told me everything about you, and he asked me to protect you at all costs," Dong Wu said. He carried no airs at all and instead gave off a gentle glow.

There were some matters Hua Feiyu couldn't personally handle, so he could only entrust them to those he trusted. That trust ran deeper than titles.

Back during the Myriad Race Ceremony, he had sent Zhuge Ming to lead the expedition. This time, Dong Wu led the expedition in the Outer Astral Spacetime because he was someone Hua Feiyu could trust.

After everyone had gotten to know each other, they began discussing the mysterious gate, and Dong Wu also asked Liu Wuxie to share whatever he knew about it. Every word mattered.

They had all stayed here for seven to eight days, and aside from trembling a few times, the gate had shown no other movement.