Heaven-defying Upgrade System

Liu Fei looked at Si Yin's companion who ran far away and felt very puzzled. He could not help teasing Si Yin and said, "Why do you say that you let that little girl go? Don't tell me you want me to stay here and accompany you to your death?"    

"You can also leave." Si Yin said disapprovingly.    

"Okay, I will also leave." Liu Fei did not want to get involved in this mess. After saying that, he turned around and left. However, he only took two steps before he stopped. He turned around and walked in front of Si Yin. Si Yin asked in confusion, "Didn't you already leave? Why did you come back?"    

Liu Fei laughed and said, "You must be joking. How could I bear to watch a weak girl face such a fierce monster?" In fact, he still did not want to leave. After all, regarding the matter of the secret realm, he still needed to obtain information from Si Yin. Furthermore, he had just developed a favorable impression of Si Yin. If he just left now, wouldn't that be a huge loss!    

Si Yin, on the other hand, had an expression as if she had already expected you to say this. After all, in her heart, Liu Fei was also a man. How could he just leave when facing a beauty like her? Furthermore, Si Yin said, "The punch you just sent out was very powerful, and you could easily pass through the illusionary mist that Lava Warrior spat out. I believe that even if you can't defeat Lava Warrior, you can still deal with him..."    

Although Si Yin did not say anything below, Liu Fei had already thought of it. She must have wanted to say that it was for her sake when he was unwilling to leave. Liu Fei had to say that she had guessed correctly, but it wasn't necessarily because of her beauty that she was moved. It was mostly because of what he wanted to know.    

"Since you have chosen to stay, the two of us will attack him together. You go forward and tie him down, and I will attack his weakness. The weak point is where the Black Flame Clan's pattern is located. That is his energy source! " Si Yin formulated a plan to attack.    

Liu Fei nodded slightly, then thought, if this pattern was the Black Flame Clan's energy source... And it was his weakness, the pattern of the White Wood Clan on Si Yin's forehead... Wasn't this also her weakness? However, Liu Fei didn't say it out loud. He didn't want Si Yin to become wary of him. Otherwise, the good impression that he had built with great difficulty would disappear like smoke.    

Furthermore, since Si Yin said the secret so directly, presumably she would also realize this problem. How could she expose her weakness to a stranger? Liu Fei might as well not think about it. He would naturally understand it in the future. After that, he turned into a gust of wind and rushed towards Lava Warrior. The Fierce Dragon Fist had been activated. A loud bang was heard.    

Liu Fei could feel a burning energy bursting out from this punch. The power of the Fierce Dragon Fist had also been reduced by a lot in an instant. After all, it was a metal-attribute martial art, the Fierce Dragon Fist. It seemed like Lava Warrior was at a disadvantage in this fight. Moreover, its power was greatly reduced. At the same time, Lava Warrior was punched by Liu Fei, and he became furious. He swung his huge flaming fist at Liu Fei.    

Liu Fei knew that this guy had some strength, so he didn't dare to fight him head on. He stepped on the Wind-smoke Step and quickly dodged the attack. This monster's attack was swift and fierce. It threw another punch when its fist missed its target. Its Qi was ferocious.    

Liu Fei's Wind-smoke Step was only a beginner level martial art. When faced with this punch, although it had a 50% movement speed boost, the disadvantage of a beginner level martial art was obvious. After all, the opponent was a monster that was even stronger than a Spiritual Core Stage. This punch almost grazed Liu Fei's body. A deep pit was created under Liu Fei's feet. Smoke and dust filled the deep pit. Heat waves rolled around.    

Liu Fei didn't use any magic treasures. He still didn't know what it would be like to use magic treasures in this world. For the sake of being cautious, it was better to use less of them. Therefore, he secretly circulated the Heaven-defying Strength to avoid Lava Warrior's attack.    

Lava Warrior's next punch came one after another. As Liu Fei dodged, suddenly, a white light flashed past his body, and it carried the momentum of breaking through the air. With a bang, it hit Lava Warrior's chest. Lava Warrior, who was attacking Liu Fei, felt the danger after sensing the danger. ， he straightened his body.    

Si Yin's spear was aimed at his forehead. She did not expect Lava Warrior to react so quickly. Si Yin's spear missed his chest. However, the power of this spear was not any weaker than Liu Fei's Fierce Dragon Fist. It made Lava Warrior extremely angry. He let out a series of angry roars.    

Suddenly, a red light shot out from Lava Warrior's eyes.    

Liu Fei was standing in front of him, feeling the surging energy. He immediately moved his body and moved to the side of the monster. After Si Yin shot out a few more times, it was possible that she had received a powerful backlash from the Sacred Origin Spear. Her body stiffened for a moment. And just as she stiffened, that terrifying red light had already shot out!    

Liu Fei cursed in his heart at this woman's greed. In order to hurt that Lava Warrior more, she actually ignored the powerful rebound of the Sacred Origin Spear and shot several times in a row. However, now wasn't the time to complain. This girl's life was in danger. If he did not save her, he could only watch helplessly as she died!    

In an instant, Liu Fei's figure moved, and he drew out the Angry Thunder Hammer. He tightly gripped the Angry Thunder Hammer with both hands, and with a loud shout, his entire body turned into a roaring silver dragon. He crashed into Lava Warrior with a loud bang, but the sound of thunder shook the entire place. Silver light shot out in all directions. Lava Warrior's huge body couldn't withstand such a huge impact, and he tilted his body to the side. The two red lights that shot out from his eyes also changed direction and brushed past Si Yin's side.    

Si Yin's heart skipped a beat. She had clearly felt death approaching just now. But following Liu Fei's attack, the terrifying red light brushed past her. However, Si Yin's mental state was tough enough. She had just walked around the gates of hell, but she was able to quickly calm down. Seizing this opportunity, she jumped up and raised the Sacred Origin Spear in the air. Aiming at the pattern on Lava Warrior's forehead, he prepared to shoot.    

However, the pattern on Lava Warrior's forehead seemed to have some kind of mysterious force that could make him feel danger. The moment Si Yin raised her gun, Lava Warrior did not care about his own body. He waved his huge arm and a huge hand rushed towards Si Yin like a huge mountain.    

"Bang!"    

Si Yin's hand was already on the trigger, but before she could shoot, she was hit by Lava Warrior's huge palm and was instantly sent flying.    

At this moment, there was another "bang." Lava Warrior's huge body fell to the ground. The silver light dispersed and a large part of his lower body and waist was missing. At the wound that looked like a bloody hole, numerous Lightning were flickering non-stop.    

After Liu Fei knocked Lava Warrior down, he quickly moved his body and arrived at an empty place. He caught Si Yin who was falling from the sky.