Fight with demon king

Next, I decided to explore my power, which had reached the late stage of the divine realm, I wanted a strong opponent, and that demon duke was not a threat to me. Then I began to fly in a direction, after I traveled a hundred km and didn't meet any strong opponent, I was upset, the warrior spirit inside me crying for me strong fight. At that moment,  I heard a voice in my head, you should move 700 miles more if you want to fight a worthy opponent. I immediately recognized the owner of that voice and said truly a being worthy of respect. Then I moved in that direction,  I saw a huge forest of black trees, it was not a new seen for me as I majority of things in this demon world depend on black energy and have black color. But in this forest, I didn't see any monsters or demons, I spent hours exploring the forest and finally saw a huge cave. I just I was just about to enter the cave.  I felt a huge pressure and then I saw a six-meter tall demon with high horns on his head. My whole body shook as his red eyes fell on my figure.  My sixth sense was warning me to continue and telling me to run without turning back. But my worrier spirit and bloodline want a death match to fulfill the  hunger. But at that time one thing was clear I had to use everything I learned or I'd die today. I could see black muscle of black demon and his skin was not black but dark....I mean pure dark....

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Looking at the environment in front of me I remember when my father said that there are many strong creatures in this world so never show mercy to them or they will kill you. 

At looking at neutral face of that huge figure I felt chill in my whole body, I wasn't fear but excited to overcome my desire and boundaries. 

I immediately attacked that behemoth and punched him in the face while using divine punch to catch him offguard. I sent him flying hundred of meters in the cave and followed him in the dark cave but next I was hit by a huge hammer and sent flying out of cave after crushing hundreds of tress I finally stopped. There was blood on my mouth. I can only give a subtle smile, before changing again. I closed the distance between us but red eyes of that demon was following my movements and blocked my punch and remained cool. At next, I kick him in the face and sent him flying back, however next a huge hammer hit me in the head and send me hundreds of meter underground. I immediately come out and said with  a smile so the rumors about demons were lie, I thought they were proud race but to use weapon in hand to hand combat... Alas no difference for those damn angels. At that demon said with loud voice, if that's what you want then I will fight in the way you want worrier. 

Then he appeared fight me kick me on my back, his speed was so fast that he took me off guard and I thought how can such a big figure move in such a speed. Again I crashed many tress and fight continued.  After a long fight he crashed me in the ground and I was truly shocked by his physical strength,  it's hundreds of times stronger than me if not more. Then he broke my arm, I feel pain but I didn't shown any emotion.  Next I activated my demonic back a sent him flying backward and next moment I appeared behind him and sent him underground.  There was height of 500 meters huge demonic figure behind me with pink hair and smiling at that demon King. When he came out of ground and saw changed atmosphere around me with the demonic figure on my back. He said, who are you? You have shell of a human but you possess dark power, it is not low levels like those dark mages but the ones that even put demon kings in shame, are you the strongest in your race..? 

At that yujiro said..no... I'm not the strongest... In the demonic cult, there are numerous people stronger than me with more powerful techniques and decades of experience and you should be grateful you didn't meet them. After hearing it the mood of that demon king turned dark and he said such a force.....

Now without further conversation, I used the 5th stage of divine punch and a demonic king used his hammer to block it. I didn't plan to comment on this action and I want to fight with all I have to overcome this obstacle...

Next, I closed the distance threw a punch at his face, and bombarded him with continuous punches while sending him flying in backward. I didn't give him any moment and grabbed his horn at that moment I tried to break it but next, I saw huge energy hit me and send me out of the forest, I was sent backward like a cannonball while destroying a few mountains. I got my arm broken by this attack but it healed at the next moment. At the last moment, I saw a small black energy which aimed at my chest and the end moment I protected it with my arm. I thought such a power......

But I was getting stronger, my body as it getting healed again and again.. While fighting I'm learning from it.

Next demon appeared in front of me and sent a fist force toward my face but without even me doing anything,  my body dodged it automatically and punched the stomach of the demon and sent him a few meters away. It was so fast that there was a shock in the demon's eyes. And he said what was that....? How.... I felt like he was hit by an asteroid...., I also felt at that moment something but that feeling went away and I can no longer feel it

As I get up, I run toward him at full speed to gain an advantage. But his hammer hit me and sent me flying back Next, he appeared near me and grabbed my neck and tried to break it. I used my qi to protect my body. 

I punch him and kick him but no change, he continues to tighten his grip on my neck. but next, I said, I can see fear In your eyes, are you afraid of me? At that, his eyes turned red. 

Then I saw endless darkness in his eyes and he sent it to my body to kill me. But he forgets that I belong to the heavenly church, we are incarnations of darkness himself. 

After sending a huge portion of darkness into my eyes and I stopped moving, my eyes turned pitch black. He thought that I dead and threw the corpse away and went toward the cave and the energy of the heavenly divine cult began to absorb that black energy which provided me with a huge amount of new qi.

I was angry at myself for being weak and not being able to kill this demon. I also began to make this new energy mine for round 2

Due to black energy, there were wounds on my bones and muscles but they are healing at a visible rate. Legends say that even if the head of demonic people were cut off, it would grow back again that's how much powerful this mystical technique is.

The process continued for hours, I felt endless pain, and my whole body destroyed and build again to get used to new energy.  I know that it was the strongest attack of this monster but I want to kill him somehow. Now I stood up and continue my way toward the cave

Yujiro once again surpassed his limits and he instantly crossed the distance between him and the demon who was in the cave and kick him on the head which sent him out of cave and destroyed the whole mountain....