"Hell guys, mind if I join you?" I asked the Grimms, sitting cross-legged in a blue crystal cave. They are Grey Horn Rhinomen. They looked like common Rhinomen, except for the grey horn. Immediately, they opened their in alarm, before calming down, with hunger appearing in their eyes. The big one moved to get up, but the short one stopped it. "We could only use the cave once," said the short Rhinoman, "but he is human," complained the taller one. "Cave is more important than human," said the short Rhinoman forcefully and the tall one, nodded before turning to me. "You are lucky, we are in a cave human," it said grudgingly. "Well, I don't mind. Joining you two in the cave," I said and to their shock, I entered the came. "Die!" shouted the tall Rhinoman and punched me. BAM! The punch reached me, but before it could touch me, a golden scream appeared in front of it. The moment first touched it, Grimms' eyes widened, and it flew away from its spot and crashed against the cave wall. "Are you dunce? The board clearly says no fighting inside," I said to the bleeding Rhinoman, who gave me a murderous gaze. "Enjoy your time here, human. This is the last thing you are going to enjoy," said the short one as he looked at me, before closing his eyes. "If you say so," I said and sat behind him, before closing my eyes. Not caring about the glare the tall Rhinoman is giving me. I concentrated and for a couple of seconds, nothing happened, before the blue mist begin to enter inside me. It filled every inch of me before coming out. For nearly a minute, I did not understand the purpose of it, before finally noticing, after I tracked my meta-scan in the core. Its purpose is simple. It entered my body and soul and brought suck the stray energies that didn't belong to me. These are impurities, but nearly harmless energies. They are very hard to remove; as the body did not consider them impurities, but they sometimes create big interference. Now this mist is removing them, and I am happy. These energies had been inside me for years since I had started to practice and now everything was coming out. I just relaxed and let it happen. I did not even enter my core and watched the process with a smile. Time passed, and the mist entered and exited my body. It did not increase in amount, not it increased its pace, it did not need to. I could feel the Grimms are done and now just looking at me. They will not exit the cave without me, and they have intentionally kept me hidden behind them. So, the others would notice. I did not want to freak them out by telling them that, but nobody will enter here unless it was Sovereign or the Grimm with the bloodline. As Nero will deal with everyone else. He had already killed one Grimm. Thirty-two minutes passed and when I opened my eyes and got up. I looked at the Grimms and they had eyes closed, but their focus was on me. I wanted to say something sarcastic as I entered, but that would be around suspicion, and I don't want to do that. When there were delicious Grimms on the line, so I acted sneaky, and walked out. The moment I did, both of the Grimms got up and shot toward me with their armors active and axes in their hands. "Die, you puny human!" said the tall Rhinoman and attacked from my back, while the short one attacked from the front. Their attack is powerful. So much so that I activated 75% power of the burst immediately. Bam! I looked at them before disappearing and the ax of a tall Rhinoman crashed on the grass, creating a loud sound, which quickly got absorbed with energy. "Careful. This human is strong," said the short Rhinoman as it came at me with another attack. Clang Clang! Our weapons clashed, and I moved my sword to defend against it, before moving it back and defending against the tall Rhinomans attack. By that time, another attack of the short Rhinoman had come closer to me. I decided to dodge it and disappeared. "Try harder or I will leave," I said to them as I appeared. "You wretched human. I will kill you!" shouted the tall Rhinoman, who came with a powerful aura blazing, which turned into a bloodline phantom before merging into its body. The Short Rhinoman did the same and attacked me from the other side. Seeing them releasing their full power. I didn't hold back either and activated the burst 100%. CLANG! I defended against the attack of the tall Rhinoman and shook from head to toe, seeing that a smile appeared on the tall one's face. I dodged the short one's attack a moment later before engaging with the tall one again. I may look like I am fighting casually, but I am not. I am studying each of their moves with my clones. Especially the tall one, who is powerful among the two, despite being the sidekick of the short ones. I want to kill them, but before I do that. I need to make sure of their abilities and their limitations. In just a few seconds, I got half of the data I needed, and I will get the other half in a few seconds. When I do, I will make my move based on that. Till then, I will fight with them through my tested method. Which helped me get maximum data on my enemies in a short time. Hun! White, I was fighting. A Grimm noticed the fight. Thankfully, it is a Primary-III and Nero moved quickly to deal with it. A few seconds later, the problem was solved, and I continued fighting against the two. Finally, at the fifty-seventh second of the fight, beginning. I got what I wanted and moved immediately. "It had been fun fighting you guys, but it is time for you to die," I said and a surprise appeared on their faces, before it turned to alarm on the short one's face, while a mocking smile appeared on the tall ones. "You talk quite big, little human," said the tall one, while the short one took a step back. This time I did not defend against the attack and instead walked toward it. Seeing that grinning smile appeared, but soon it turned to alarm when it saw me avoiding the ax with ease. There is no ease in it. I am using every ounce of power I have to achieve this feat. Puch! I appeared in front of a tall Rhinoman and pierced my sword into its chest. Crushing all the defenses, it invoked. A moment later, it disappeared, and I turned to the short one. It is running away, seeing that I shook my head, before appearing behind it and moving my sword. Puch! It did not even sense me, till my sword touched its back and by then, it was already too late. My sword entered its chest through the back into its heart. A moment later, it froze before disappearing into my core.