User blog comment:B214/Volume 17 spoilers./@comment-24098614-20140318171834/@comment-79.54.183.249-20140318231519

And Ophis count as God, not as Dragon. I thinks that the dragon of his harem could be Tiamat (she lives in the human world without any problem so she must know how shape her body into human body, like Crom Cruach do. She hates Ddraig but he doesn't know the reason [i think that Tiamat was in love with him, but he thought only to his fight against Albion and doesn't pay attention to her. But Ise love girls and he has Sacred Gear of Ddraig... XD]) and the vampire could be Valerie (if she is just a friend for Gasper and nothing more, she could be the vampire that miss in Issei's harem, and she has a Longinus, Issei want have a strong peerage, she would be perfect).