"Of course it wouldn't be this easy if I didn't have much knowledge about how the whole human reincarnating into devil's peerage and the Evil Pieces works. The last one is especially crucial in understanding the complexity-oh fuck that, there's nothing complicated about it, simply put, it turned the human essence into a sinner/devil. I can't believe it was that simple when I analyze the Evil Piece I got from Sirzechs." Kousuke said with a sigh. "So when that happens, it's usually an irreversible things, since your essence quite literally transformed into a whole different thing, by then it can no longer be categorized under human, which was why hybrid term exists."
"But my Sacred Gear, definitely a Longinus type, can bend the very physical laws while within this imaginary space. Meaning I can say 'fuck you' at the impossible odds and do my own thing. What are they gonna do? Complain to the dead Biblical God? Hah."
"This is...crazy! Doesn't this mean you can just change people into anything you wanted? Like for example, making me a humanoid dragon?!" Issei asked excitedly.
"Why do you want to be any races other than human?" He asked, clearly his friend weren't cultured enough to know about the legendary myth of Emperor of Mankind. Issei needs to be re-educated about the sheer will of human's determination, Kousuke decides to fulfill his god-given role as part of the Space Marine Legions.
"Because it's dragon! That flying flame-breathing monster!"
"Well if they're so great, they wouldn't have been dead now, would they?" Kousuke replied casually before glancing sideway at Issei's Sacred Gear that is blaring red as if responding to Ddraig's raging emotions. "Shush, you're just a power granting tool to my friend, if you get too riled up, I might just take your power for myself."
The blaring Sacred Gear immediately dimmed down as if it could understand the seriousness in Kousuke's voices. The latter simply smiles at that.
"As I was saying, human's greatest merit is our ability to survive anything that God throw at us. We can adapt and overcome eventually. After all, each one of us have went through things that would normally meant certain death, am I wrong?" He paused, seeing them shaking their head, then continues. "Even with Gods still walking amongst men in this world, though rare, yet none dare to try and subdue us. Do you know why? It's because they're afraid of what we could achieved if pushed into corners. Just like how we created a weapon of mass destruction, the atomic bomb, during world war. What if their action resulting in something even more fearsome and destructive than that?"
"More destructive than atomic bomb? You mean a weapon so powerful it can... destroy the planet itself?" Kiba muttered in horror. "Is that even possible?"
"Probably, I'm not sure about others but I can certainly make something like that with my power." Kousuke replied calmly. He wasn't kidding, he does have a weapon so powerful that even he wouldn't dare to casually pull it out of his inventory for a surprise prank. One wrong move, and it could be the end of the world. That was one of the many trump cards he had prepared against the Demon God. Of course it was meant to be a countermeasures in the case that he, the hero, had fallen in battle. By then, no matter how much the world struggles, their doom is nothing but certainty. Fortunately, that never came true.
"You can do it?!" Issei shouted in surprise.
"What are you acting so surprised for? Didn't I just reversed you back to human? That didn't seems all that complicated to you?" Kousuke said in amusement.
"I mean...well, when you put it that way, I guess it wasn't that shocking, huh?"
"Even you has the potential to reach planetary level of threat with your boosted gear. I'm sure when Ddraig was alive, he could accomplish the same, if not even more. This world is a lot more dangerous than you may think, fortunately Biblical God left us a gift so that makes even ants could stomp an elephant with just training and strong determination." Kousuke muttered. Issei pointed at himself with a stunned look, as if to say 'Me? Are you sure about that?'
"Even you, Kiba. What's your Sacred Gear again? Sword Birth?"
"Yes, I can create numerous demon swords each with its own attributes and properties at my disposal but..." Kiba explained.
"You might think it's nothing but a weak variation of Blade Blacksmith, but that's what makes it better, if not more versatile than the original. Listen to me Kiba, you, has the most potential amongst Rias peerage. If I were to awaken similar Sacred Gear to yours, I wouldn't have the need to fear anyone. Because I know whatever they might throw at me, I can do the same and many times more powerful! That's how unique and special Sword Birth is."
Hearing a praise from someone he secretly admires, Kiba feels embarrassed. Despite Kousuke being slightly younger than him, at least appearance-wise, the Knight often feels like he was the youngest during each and every one of their conversations. It felt strange, but he didn't think much of it. Even so, Kiba had always been less inclined in using his Sacred Gear unless he had to. After all, it came from the experiment that brought nothing but nightmares to him. It was forcefully awakened by countless sacrifices, that included his friends.
"Remember, Sacred Gear are nothing but tool for you. It can't harm you, so don't let yourself be consume by it." Kousuke's words pulled Kiba out of stupor. It feels like something within him had been cracked opened, and he could see light at the end of the tunnel. Even Issei fell into a stunned silence. "Biblical God gives you the tool and it's up to you what you want to do with it. Me personally, I wanted to make something that I always dream of to reality."
"...what is it?" Issei asked after a momentary silent. Kousuke simply grinned, his calm demeanour gone and replaced by his much sinister prankster side.
"I shall brings all of humanity into my Death Game!"