In the gorgeous palace of the Nangong family, Nangong Zhi and the elders of the Nangong family were overly enthusiastic, because they already knew that the Heaven Tribulation Sect had a large number of fire attribute heavenly and earthly treasures, which was very important to the development of the Nangong family.

Similarly, the Heaven Tribulation Sect also urgently needed to cooperate with the Nangong family to transform various resources into power. The Heaven Raiding Sect needs a lot of magic weapons to cultivate Dao soldiers, and at the same time, the disciples of the Heaven Raiding Sect also need to improve their natal magic weapons, all of which depend on the Nangong family.

The Heaven Tribulation Sect is also actively cultivating refiners, alchemists, array mages and other talents, Chu Dui ordered the Ice and Fire Yuan Sage to collect Xue Ying as an apprentice to teach her alchemy, Xuan Xuan as an apprentice to teach alchemy, and Xuan Yin as an apprentice to teach alchemy and so on.

The cultivation of the Cave Heavenly King was slow, especially in the era of the end of the Fa, and it was not uncommon for him not to advance an inch for a hundred or even hundreds of years.

Cave Heavenly Kings who have not advanced in cultivation often practice one or two kinds of cultivation arts, such as alchemy, refining tools, refining puppets, formations, talismans, controlling beasts, planting medicines, brewing wine, etc., all of which belong to the cultivation of the hundred arts.

The cultivation of all arts is broad and profound, and any cultivation to the depths is not trivial, the ancestor of the Danxian Hall is to prove the supreme heavenly dignity with the Dan Dao, and the refining weapons, formations, beasts, etc. also have the existence of the Dao Emperor.

Not counting the existence of Xue Ying, who took the Standing Cave Heavenly Fruit to achieve the Cave Heavenly King, Xuan Yin, Shuo Qi, Xuan Qi, Thunder Queen and others all relied on their own strength to break through to the Cave Heaven Realm, and they all mastered one or two of the hundred arts of cultivation.

Needless to say, Xuan Qi was originally a major in Dan Dao, and his Dan Dao attainments had reached the level of a grandmaster. And the Yin Yin can refine puppets, and once refined the bloody hand old monster into a puppet, although the refining puppet attainment has not reached the grandmaster, it is also a half-step grandmaster level.

There is also the Queen of Thunder, who will practice the more remote refining treasures in the hundred arts, and the refining treasure is one of the branches of refining, and the treasures refined are mostly one-time secret treasures such as thunder and fire beads and thunderbolt beads.

The playboy has a talent for talisman making, and once received a complete inheritance from a talisman master, and after hundreds of years of study and penance, now his talisman attainments have also reached the level of a grandmaster.

It's just that the cultivation of all arts must be inherited, and there is no higher inheritance and it is difficult to achieve success just by relying on oneself, and it is a pity that the playboy has stayed at the level of a junior talisman master for more than two hundred years, and has made little progress.

And Shuo Qi, don't look at Shuo Qi usually looks like he is very brainless, but don't forget, he was originally a famous big man in the evil way. Being able to rely on himself and not relying on any force to cultivate to the Cave Heaven Realm, talent, talent, and city government are all indispensable, he is far from being as simple as it seems on the surface.

Shuo Qi is a good wine, and his practice is also the cultivation of winemaking in the hundred arts, but he has never received a good inheritance, and his winemaking attainments stop at the level of senior masters.

Chu Duan had high hopes for them, and cultivated them at the expense of blood, telling the Ice and Fire Yuan Saints not to hide their personal interests, and to teach them to cultivate the hundred arts, as for how far they can cultivate, it depends on their own creation.

Da Heitian bargained with Nangong Zhuo, constantly negotiating the details of the specific cooperation between the two companies, and trying to maximize their interests. This kind of negotiation related to the forces of the two parties cannot be successful in a moment, and during this period, Nangong Zhi also has to consult with the elders of the Nangong family, and he cannot act arbitrarily.

And Da Heitian didn't need it at all, he had a heart-to-heart connection with Chu Duan, representing the only will of the Heaven Tribulation Sect, and no one dared to raise objections.

After a day and a night of difficult negotiations, Da Heitian and Nangong Zhi finally reached a consensus that they would start a comprehensive cooperation with the Nangong family next.

After the negotiation of the cooperation matter was completed, the Great Black Heaven left with the people of the Heaven Tribulation Sect, and they would prepare to rush to the Demon Abyss Valley to wait for the bottomless abyss to return to the surface world, and the Nangong family was also preparing for this.

On Hongyan Island, Yu Yao sat cross-legged on the ground, her body burning with red flames, and the expression on her face was a little painful. Chu Duan didn't expect Yu Yao's Nirvana Tribulation to come so suddenly and violently, and it was the two Nirvana Tribulations of Qi Refining and Body Refining coming at the same time.

Yu Yao's accumulation in the Faxiang realm is profound enough, especially the Scorpion Insect Hive and her party, competing with the Tianjiao of all races, allowing her to quickly realize the accumulation of the realm.

Because Yu Yao's law and battle body were too strong, her Nirvana Tribulation was extremely violent, burning her Qi Mansion and physical body from the inside out, and if she was not careful, she would fail to cross the Tribulation. Chu Duan was guarding on the side, even if Yu Yao failed to cross the tribulation, he still had the means to protect her.

However, as an imperial daughter, with the strong and domineering Vermilion Bird bloodline, Yu Yao is by no means simple, how could she be helpless to get her.

Vermilion feathers appeared on Yu Yao's body, and Yu Yao turned into a vermilion bird body, and let out a long cry from her mouth. The power of the Nirvana Tribulation was surging to the extreme, turning into a ring of Nirvana and putting it on the body of the Vermilion Bird, who spread its wings and slashed down with two heavenly swords, slashing the two Nirvana rings.

The vermilion red lotus flame burned on the vermilion bird's body, and in the firelight, the vermilion bird re-transformed into a human body, like a goddess who came out of the flames, and the majesty and domineering of the eyes were full of light.

"Yu'er, congratulations on your promotion to the Nirvana Realm!" Chu Duan said with a smile.

Yu Yao was very happy, not because she was happy that she had been promoted to the Nirvana Realm, but because she and Chu Duan's cultivation was pulling in. is catching up with him.

Chu Duan gave Yu Yao some pills, all of which were used to consolidate cultivation and nourish the spiritual soul, and they were all top-grade pills.

For ordinary people, Nirvana calamity will more or less damage the physical body, leaving imperceptible dark wounds deep in the physical body. However, Yu Yao reversed the innate nature of the physical body and incarnated as a pure-blooded Vermilion Bird, and the Nirvana Tribulation would not cause any damage to her innate body.

Soon after Yu Yao's successful robbery, Chu Duan left Hongyan Island and returned directly to the Heavenly City after bidding farewell to Nangong Yu and his wife and Granny Huang.

The Heaven-Destroying City tore through the void and entered the endless space-time, and the Endless Space-Time, which was extremely dangerous to the Cave Heaven King, could not cause any damage to the Heaven-Destroying City, but instead the Heaven Raiding City was constantly swallowing up the power of the Endless Space-Time to strengthen itself.

In the Lingxiao Heavenly Palace, Da Heitian is sitting on a dark golden divine seat, which is made of stealing heavenly immortal gold, which is a strange treasure that can steal the mysteries of the Heavenly Dao to help people practice.

At this time, Da Heitian was also crossing the Nirvana Tribulation, and he took the initiative to attract the Nirvana Tribulation to increase his body and impact towards the Nirvana Realm. Moreover, he once caused the fourfold Nirvana Tribulation, the two-fold Refining Body Nirvana Tribulation and the two-fold Refining God Nirvana Tribulation.

For Da Heitian, the double nirvana tribulation of refining the body did not pose a threat to him, because he also proved that the physical body was innate and the body was the Nine Shadows flesh fetus, and the physical body was too strong, and Chu Dui was slightly inferior at the same level.

What can really threaten him is the twofold refining god Nirvana Tribulation, he has never reversed the soul innate, and the refining god Nirvana Tribulation is not easier and simpler than others, but because his accumulation in this realm is too strong, the Nirvana Tribulation is even more ferocious.