Remember: everything Ryo Asuka says is made up.

It was all too sudden. One moment he was a genius, almost mad scientist that could prove the existence of demons and save humanity. The next moment, everything he knew had changed and he remembered that he was not Ryo Asuka, but Satan. He had new plans. Satan had no issue eliminating humanity, how could he? He didn't understand humans or their emotions, neither could demons. But if this was true, why did he turn Akira into a devilman so he could survive? Why did his chest tighten at the sight of you?