Kirnardaz sighed. He had spoken just a little bit too much. "Because you are a half demon, you may live a human length life, and age. You could also, possibly, live forever, being reborn. Demons are immortal in all forms, if they are beaten in battle, they are reborn, and grow to be the same person, with the same memories. You may not be that type of immortal, but you may be naturally immortal, assuming your life isn't taken. If you are naturally immortal, I can take you as the heir to my throne, and when I am next reborn, you get my kingdom. You may never be reborn, and just live immortally. It depends on how much you take after me." He paused for a few seconds, having spoken slower and more clearly that time.
"If you are not immortal in any form, I need an heir, so I must therefore bed some gods-forsaken she-demon and produce offspring who are wholly demon, so that I can alternate between their reign and my reign." Kirnardaz stopped again.
"Demons can also be killed in battle, or through deceitful murder. I killed my parents in such a manner to claim their thrones for myself. Such is the demon's way of life. I have no intention of exposing you to that, and when you go to my realm, you will only die if your body here dies. You will be thrown back to this world if you die in my realm. Thereby again, rendering you immortal." He spoke with a coolness unrivalled by even gods.
"I'm basically saying that we may live together forever."