Responses
Everyone is a demon, he probably meant "what does a guy like you- no a bastard like you"
That's why I also said the words in the () and also "prob" and "there's a possibility" meaning that it was only a guess
I just realized that the reason why Asmodeus called Amy from demon to bastard was probably because Asmodeus still thinks that Iruma is a demon and calling Amy a demon would be like insulting what he thinks Iruma is (yeah Amy is naturally a bastard so Asmodeus also probably called him a bastard because Amy IS a bastard) but there's a possibility