[SPOILER] Alexander von Brennenburg...

[Diz]

...and his grand uncle is

Spoiler below!

not a human being.

This. Or most likely this, anyway. If so, how is it possible that Alexander is in relation with him? And let's say that Alexander was human, why would he have a child? He keeps talking about our world as if it is a horrible and alien place, and he really badly wants to return to this other world. Why would he then consider having or adopting a child for raise in our world?

Interesting topic, by the way! Had me thinking for a bit, actually.