if all mama all pregnant and give birth.who the papa then??? devil or human??? is ray isabella son?
if all mama all pregnant and give birth.who the papa then??? devil or human??? is ray isabella son?
The background for Panel 1 of Page 10, Chap. 31 hints very strongly that the farm uses IVF (in vitro fertilization), so the answer is probably "anonymous human sperm donors". I doubt even Isabella has any idea who Ray's father is, although it may be in the farm's records somewhere. Later plot developments make it clear that a demon/human hybrid would be worth much less to the demons than a regular human, even if hybrids were possible, so Ray's very likely 100% human.