User blog comment:B214/Volume 22 spoilers/@comment-162.205.216.169-20160723003102/@comment-83.39.40.216-20160724173058

His peerage, does not have to relate to the harem.. ...1 of these pieces is for  Elmenhilde.. Rook? Although,''' I also prefer to see a full group of girls... Or Riser Phenex have the Best Peerage.'''

No Boys(you are a boy? secondary servant of Issei palace)... No, I do not want to see any male lover(even the real Heracles, had that failure ) .. Issei sent to hell Azazel sensei's teachings.

I remember his DXD EX personality.. more perverse(perverted).. He  enjoy watching Akeno torturing of pleasure to Barakiel .. Bad.. .. I'm afraid to see someone like Issei becoming in bisexual...

Although he is appalled by the interest of certain male characters in him....Maybe I am exaggerated and that's 100% impossible, Gasper was the closest thing to that ...