Heaven-defying Upgrade System

Zhu Yan'er's eyes revealed a nervous expression. This was the first time she had killed someone, and she didn't know where that sudden burst of energy came from. She didn't know if she could resist this sword attack again.    

    

But at least, Zhu Yan'er found that she had the power to use it. It was different from before and she would not sit and wait for death anymore. The first reaction in her mind was to resist, even if she was not a match for that member. She would not let go of any chance of survival.    

    

"Hah ~"    

    

With a shout, Zhu Yan'er's aura increased once again. She suddenly reached deep into her palm and grabbed at the Longsword that was coming at her. All of a sudden, Zhu Yan'er widened her eyes in shock. She did not expect that... Her palm actually tightly grabbed onto the Longsword and the palm that was grabbing onto the blade of the sword. However, she did not feel the sharpness of the blade.    

    

Zhu Yan'er was surprised by her own strength and tried to grab onto the blade of the sword and suddenly raise it. A huge force came from the other side of the Longsword. The member of the Dead Wood Group who was holding the other side of the Longsword was lifted up in an instant. He couldn't help but be flipped over.    

    

"How... How is this possible!?" That little brother cried out in shock and immediately jumped up from the ground. Then, he quickly ran towards Ku Rugu and shouted, "Boss, be careful, this woman is a bit abnormal!"    

    

At this moment, Ku Rugu had already seen the blood-red light in front of him disappear. Liu Fei, who had been attacked by the spear shadows, the double defense on his body had shocked Ku Rugu even more. He didn't even care what his little brother was saying.    

    

Liu Fei's defense was astonishing. Ku Rugu was even more greedy when he saw it. He had already discovered the green flames on Liu Fei's body and his dark golden robe. The pair of Flying Swords and the blood-red scepter in his hand were all extremely rare top grade treasures. If he had such a treasure with him, how powerful would his strength be? He did not dare to imagine that it would be even stronger.    

    

"But you only have these techniques! Today, you came to find me. With your Spiritual Core Stage cultivation base, aren't you here to send yourself to death?! Die!" Ku Rugu shouted out loudly. The Blood-Bone Gun in his hand stabbed towards Liu Fei.    

    

The Blood-Bone Gun instantly turned into a blood-red skeleton in the air and rushed towards Liu Fei ferociously. However, just as Ku Rugu was about to attack, a blood-red light and a silver light suddenly lit up between Liu Fei's hands.    

    

Liu Fei held the Blood Devil Staff in one hand and the Angry Thunder Hammer in the other. This incomparably powerful Qi had shocked the entire Dead Tree Territory. After that... A surge of energy that was like a tempestuous storm crazily rushed towards Ku Rugu.    

    

Ku Rugu could feel that these two powerful energies were no weaker than him when they were combined. He thought that he had underestimated his opponent. He had actually given Liu Fei the time to gather his strength. Therefore, facing Liu Fei's powerful attack, he could only continue to resist with the Blood-Bone Gun.    

    

In an instant, the Qi on the Blood-Bone Gun was pushed to the limit.    

    

"Boom!"    

    

A loud sound was heard, as if the sky had cracked and the earth had cracked. The Blood-Bone Gun in Ku Rugu's hand started to shake violently. The blood-red skeleton was crushed into pieces at this moment. The force that Liu Fei unleashed was like a hot knife cutting through butter, and it struck Ku Rugu's body. Ku Rugu's tall and thin body suddenly trembled, and blood spurted out from his body. He couldn't bear the impact of the force and was sent flying.    

    

"With a bang, Ku Rugu fell heavily onto the ground. His face was covered with blood. A pair of gloomy eyes were filled with unwillingness. The Blood-Bone Gun in his hand had already fallen to the ground. Ku Rugu wanted to pick it up again, but he found that the Blood-Bone Gun was unusually heavy in his hand. It was as if he could no longer hold it.    

    

Liu Fei finally had the time to take a breath. He thought to himself, he had misjudged Ku Rugu's strength just now, and was almost killed by him. Fortunately, his strength wasn't something that ordinary people could compare with. He had defeated Ku Rugu at the last moment.    

    

"Liu Fei!" After Zhu Yan'er finished off another member of the Dead Wood Group, she quickly ran to Liu Fei's side. Her long eyelashes trembled slightly as she hugged Liu Fei tightly. She was very afraid now. The first time she killed someone, it made her feel as if the entire world had undergone a tremendous change. Only by getting close to Liu Fei could she feel a trace of comfort in her heart.    

    

Furthermore, the importance of Liu Fei in her heart was getting more and more incomparable. She was afraid of losing Liu Fei, so she didn't dare to relax even a little bit.    

    

"It's done." Liu Fei gently stroked Zhu Yan'er's back and said, "It's fine now. I will go and see if Ku Rugu is dead." After saying that, Liu Fei clenched the Blood Devil Staff and Angry Thunder Hammer in his hand. He slowly walked towards Ku Rugu.    

    

Zhu Yan'er, although you are very afraid in your heart, she also follows closely behind Liu Fei, but she doesn't dare to look at Ku Rugu.    

    

"Bang!"    

    

Suddenly, a surge of energy surged up. Ku Rugu who was originally on the ground suddenly straightened his body. The Blood-Bone Gun in his hand was emitting a strange light. The surface of the Blood-Bone Gun was blood-red. It really looked like blood was flowing, and it was emitting a blood-red light. It quickly surrounded Ku Rugu's body. At this moment, Ku Rugu's Qi suddenly increased.    

    

"Hahaha... Liu Fei, you are too arrogant! A puny Spiritual Core Stage warrior trying to kill me, you are just daydreaming! " Ku Rugu's voice was like a clap of thunder. He raised his Blood-Bone Gun and thrust it at Liu Fei.    

    

Although it was just an ordinary attack, it contained an extremely powerful force. It was like an endless stream of spring water that was surging underground.    

    

Liu Fei waved the Blood Devil Staff and the Angry Thunder Hammer in his hand, trying his best to defend himself. However, Ku Rugu's spear and spear had dispersed all of his force. If it wasn't for the double protection of the Cyan Flame Primordial Fire and Gold-Owl Clothes, Liu Fei would have been stabbed by Ku Rugu.    

    

This Blood-Bone Gun was definitely not something an ordinary magic treasure could compare with. Adding Ku Rugu's powerful cultivation base, Liu Fei actually felt that it was strenuous for him.    

    

But he had to admit that when Ku Rugu used the Blood-Bone Gun, his strength was extraordinary. His attack almost forced Liu Fei to be unable to fight back and could only resist.    

    

Ku Rugu kept forcing Liu Fei back, and Liu Fei could only keep retreating. Now, it seemed like retreating and dodging was the best way to defend himself.    

    

"Crack!"    

    

All of a sudden, Liu Fei stepped on something. He suddenly felt his body lighten, and his whole body sank deeply into the ground.    

    

"A trap!"    

    

Liu Fei shouted.    

    

What came in front of him was Ku Rugu's aggressive long spear attack. Because his body was attracted by the trap, the long spear stabbed into his body. His entire body fell down involuntarily. Even Zhu Yan'er did not avoid it. In an instant, their vision turned pitch black.    

    

At the same time, after enduring Ku Rugu's spear, Liu Fei's entire body seemed like it was going to fall apart.