Heaven-defying Upgrade System

Liu Fei looked over and saw a ring floating in the air. It was pitch black and looked like a coiled black dragon. It was hard to tell what material it was made of, but it was definitely very rare.    

    

"This ring is called a Black Dragon Ring, and it's also a storage ring. There are many good treasures inside, and if it wasn't for it... I wouldn't have fallen into such a state..." Black Flame Devil said, his expression a little sad. Back then, it was because he had stolen someone's Black Dragon Ring. That was the reason why he was beaten up so badly by that person.    

    

After falling here, he had no way to control the Black Dragon Ring anymore, so he could only hide it first.    

    

Liu Fei focused his attention on the ring. For some reason, the killing intent in the depths of his heart started to rise again. There seemed to be an irresistible murderous aura on the Black Dragon Ring. Being affected by this kind of aura, Liu Fei couldn't help but approach it. And... He reached out his hand and held it in his hand.    

    

When Liu Fei held the Black Dragon Ring in his hand, suddenly... The scene in front of him changed. In a trance, he came to an extremely desolate place. Countless wild beasts were roaring on the ground, killing each other. The air was filled with the aura of being crippled.    

    

Mountain Flood was furious, and the ground rumbled.    

    

Liu Fei stood on a high cliff and looked at the scene before him. His heart was beating faster and faster, as if the most primitive killing intent was spreading from the bottom of his heart.    

    

Suddenly, Liu Fei's eyes turned blood red. He took out the Taiji Cyan Rainbow Sword and rushed into the group of beasts that were fighting. He couldn't help but start fighting with the beasts.    

    

As Liu Fei continued to kill, his heart was beating faster and faster. It seemed like it was going to jump out of his chest. At the same time, Liu Fei felt an invisible pressure enveloping him. It was an invisible pressure that seemed to want to crush Liu Fei.    

    

In the battle with the wild beasts, Liu Fei still had to withstand the invisible pressure. He felt that he was about to reach his limit. If this continued... * Hong Long...... * But now, he could no longer control himself. As his heart beat violently, only by continuously killing could his heart calm down a bit.    

    

He didn't know how much time had passed.    

    

Liu Fei slaughtered tirelessly. Suddenly, the scenery in front of him changed, and he returned to the cave. The Black Dragon Ring that was originally floating in front of him had actually wrapped itself around his finger.    

    

"He actually subdued the Black Dragon Ring!" Black Flame Devil let out a surprised cry.    

    

Back then, he had spent a great deal of effort and effort to continuously enter the domain unleashed by the Black Dragon Ring to train. He had just subdued the Black Dragon Ring, but he never thought that Liu Fei would actually subdue the Black Dragon Ring in one go! It seemed like subduing the Black Dragon Ring was not only due to the influence of his cultivation base.    

    

"This is great! Kaka..." Black Flame Devil couldn't help but laugh out loud, as if he was even happier than when he subdued the Black Dragon Ring.    

    

At this moment, Liu Fei had already used the Divine Sense to invade the Black Dragon Ring, and it was actually filled with numerous restrictions. With Liu Fei's current cultivation base, it was simply nonsense for him to open the restrictive spells. There were many treasures that he had never seen before that were sealed by the seals. Outside the seal, there were some things that had yet to be sealed. However, Liu Fei could tell that these things were just ordinary materials and Elixir.    

    

"How is it? Is there a book called the 'Secret Method of Returning Dead Demon' in it?" Black Flame Devil smelled it excitedly.    

    

Liu Fei searched inside and found that there was indeed a book called the 'Soul Returning Secret Technique', and it wasn't sealed within the seal. He immediately came back to his senses and looked at Black Flame Devil. "What do you want to do?"    

    

Black Flame Devil grinned and said, "Haha, as long as I have this secret technique, I will be able to revive!"    

    

"Revive?" Liu Fei did not know that there was something special about the cultivation method of Devil Clan. As long as his Yuan Shen wasn't destroyed, he could use the secret technique to resurrect himself. However, different secret techniques had different effects. The Death Devil Soul Returning Technique was a higher level secret technique. No one knew where Black Flame Devil would go after reincarnating. He didn't want to be reincarnated either. He wanted to be reborn through resurrection. However, the requirement to revive him was extremely harsh.    

    

When Black Flame Devil removed the weakest seal in the Black Dragon Ring, he remembered that there was a secret technique called the Soul Returning Technique. However, he didn't use it and didn't study it at that time, so he placed it aside. Now that Liu Fei had opened the ring again, the first thing he thought of was to revive himself.    

    

Liu Fei thought for a moment and knew what Black Flame Devil meant. He was asking for something from him. So he said to Black Flame Devil, "Little Blackie, this skill is not given for free, unless you call me big brother."    

    

"Little Blackie?" Black Flame Devil frowned. He thought that his insufferably arrogant devil king was actually called Little Blackie now. It was truly infuriating. However, there was nothing Black Flame Devil could do. His heart was still in Liu Fei's grasp. Furthermore, he was already in his soul state, there was nothing he could do to Liu Fei.    

    

After feeling awkward for a moment, Black Flame Devil said in a hesitant manner, "Brother, just give that secret technique to Blackie!"    

    

Liu Fei could not help but shiver. This guy was actually acting like a spoiled child to him! Furthermore, he was a man. Who could endure such a way of acting like a spoiled child? Liu Fei immediately threw the secret technique to him.    

    

After Black Flame Devil obtained the secret technique, he was delighted and said, "Thank you, big brother!"    

    

Liu Fei secretly shook his head helplessly. He knew very well in his heart. Before Black Flame Devil fell, his strength was equivalent to a long distance cultivator. Even a Great Venerable expert would feel fear when he was at his peak. In this world, he was an existence that had almost reached the peak. He did not expect that after his fall, he would actually end up in such a state.    

    

It made Liu Fei sigh in his heart. He couldn't help but feel that the difficulty of the path of cultivation was far beyond his imagination. If he wasn't careful, he might make all of his efforts go to waste.    

    

After Black Flame Devil memorized the secret technique of King Devil Soul Returning Technique, he said to Liu Fei in high spirits, "Alright! Everything was ready now except for the east wind! Brother, help me find a good corpse!"    

    

Brother? This Black Flame Devil seemed to have gotten addicted to calling him big brother. Liu Fei didn't feel any discomfort when he heard it, so he let him call him big brother. It was just a good corpse... Liu Fei could not understand. What was a good corpse?    

    

For Black Flame Devil, if he wanted to revive, he should first choose a corpse. Reviving was different from possessing. He had to meet the requirements to revive. As for what kind of corpse Black Flame Devil needed, only he knew. After telling Liu Fei about it, he didn't know where Liu Fei would go to help him.    

    

He simply said to him, "Wait a few more days. There will definitely be corpses in the war between the two empires."    

    

"Alright, brother!"    

    

"That's right..." Liu Fei suddenly thought of something and asked Black Flame Devil, "Recently, the Heaven Trembling Ridge has been shaking, and it seems like something is coming out. What exactly is going on?"    

    

Although Black Flame Devil had not gone out before, his Yuan Shen's perception was still very good. He said to Liu Fei, "This matter is related to your Black Dragon Ring. Before my body was destroyed... The Black Dragon Ring left me. I wanted to keep it, so I placed a layer of restriction on it. After such a long time, the power of the restriction had been greatly reduced. If you were a few days late, I'm afraid the Black Dragon Ring would have flown away by itself. "