User blog comment:B214/General Discussion/@comment-24098614-20170308200415/@comment-87.9.173.147-20170309010029

Bova already said that Issei wants only women so he will be happy to be a subordinate, not a member of his peerage. Issei from the beginning said he wants a harem as a peerage, what is changed now is only the fact that he wants a strong harem as a peerage. Right now the official member of his peerage have wonderful potential, and if Bina will join him permanently he will miss only a Knight and a Rook to fill as members valued more than 1 Pawn. So why taking men? Highschool DxD's universe is full of strong women. Bova is a talented dragon, but I would not take him in a peerage too, because even if he will be incredibly strong, he is only raw power and has only his fire and strenght. Issei already has himself that can use Ddraig deadly fire and Ravel with the phonex fire, not counting Rossweisse's fire magic. In Issei's place, I would search for a strong female with a Longinus. I bet that he will have at least one Longinus user in his peerage, so Innovate Clear or Telos Karma. If one of them will be a female, I have no doubt she will join him.