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Watching his nod, Qin Yu raised his hand and slashed through the air, following that, a black imprint appeared out of nowhere, emanating a terrifying Demonic Qi.

Qin Yu was familiar with the method to remove master-servant contract s, but it was not a cultivation method, but a demon technique.

"What kind of secret art is this, why is it so terrifying?"

Feeling the strange auras of the Demonic Qi, the three of them were shocked.

They had a feeling that this black gas was extremely harmful to their bodies.

Why was there such a terrifying black gaseous substance in Qin Yu's body?

In reality, Qin Yu was not just a simple cultivator.

In other words, he was both a immortal cultivator and a Demonic Cultivator. The immortal elemental energy and the Demonic Qi coexisted within his body.

Of course, now that his cultivation had dropped to become that of a mortal, the immortal elemental energy naturally degenerated into a Genuine Essence.

In the blink of an eye.

A black seal was imprinted into the Sixth-rank Crimson Fire Dragon's body.

This forbidden technique of the demons was called the Soul Devouring Curse, and was able to devour primordial spirits.

To put it bluntly, master-servant contract s were limited to their primordial spirit mark.

As long as they used the overbearing devouring abilities of the Soul Devouring Curse of the Demon race, they would be able to forcefully devour and uproot the primordial spirit imprint that Chen Feng left in the Sixth-rank Crimson Fire Dragon's body. This way the Crimson Fire Dragon wouldn't have to die.

At this moment, Crimson Fire Dragon was already so weak. If she did not make a move, even a god would not be able to save her.

As a result, under Qin Yu's hard work, the Soul Devouring Imprint was like a terrifying existence that specialized in devouring wandering souls.

Very quickly, the primordial spirit mark Chen Feng left in the Sea of Consciousness of the Crimson Fire Dragon was forcefully eradicated.

Since the Soul Devouring Curse was completely constructed by the Demonic Qi, it caused great damage to them.

When the master and servant imprint that Chen Feng had left in the Sea of Consciousness was completely erased, the Crimson Fire Dragon had already exhausted its consciousness and fainted.

After Qin Yu withdrew the Soul Devouring Curse that was made up of Demonic Qi, he turned around and gave the order to the Hua Xianer s who were following closely behind him.

The Hua Xianer followed his orders, and while the Crimson Fire Dragon was unconscious, he made a fair contract with it.

This' fair 'contract bound each other, not harming each other.

Therefore, there was no absolute order clause.

The Hua Xianer and the Sixth-rank Crimson Fire Dragon needed to help each other, so they couldn't do anything to harm each other.

After taking care of this matter, Qin Yu walked straight towards the Rainbow Palace's entrance, and carefully observed it.

At this moment, he wasn't too sure what kind of existence the Rainbow Palace were.

However, he was certain that this was definitely not a Heavenly Imperial Palace.

Then what exactly is it?

And how did it happen?

Furthermore, when did they appear? Why didn't they alert the other cultivation forces in the Cultivation Realm?

A series of questions lingered in Qin Yu's mind. He was not a reckless person, he liked to clarify everything before going forward to investigate.

Using his consciousness to observe carefully, Qin Yu quickly realised that this vast Rainbow Palace in front of him was actually a immortal estate.

The so-called immortal estate was an immortal's cave.

It was a spatial treasure created with a lot of precious ores. It could be used for living, or it could store many items. There was a very large amount of space in it.

In the ancient times, immortal cultivator was someone who she especially liked. Because the space within the immortal estate was extremely vast, she could create her own unique cultivation environment and not be disturbed by the outside world.

It was a pity that the refining methods of the immortal estate and the rarity of various precious ores had long since disappeared during the Middle Ancient Era.

In the cultivation world, there were very few immortals who had immortal estate s.