User blog comment:FrankieX98/The future members of the Issei's harem and peerage./@comment-33341107-20181219190926

So it would seem both Kunou and Yasaka are going to be in his harem, I personally think that's a little odd but whatever works for them I suppose. Maybe Kunou can join Issei's peerage because he and Yasaka will make a new heir (just kidding, don't really see her joining his peerage).