User blog comment:B214/Volume 23 discussion blog/@comment-183.87.180.246-20170602072629/@comment-31137559-20170602103541

You do have to consider that Asia was the first one to have feelings for him. And plus he's very overprotective of her because of her innocent and trusting nature.

And people need to get this idea out of their heads that Issei loves one girl more than the others. You have to consider that Rias was the only one he was aware of having romantic feelings for. To say that he loves Rias more than the others is basically saying that Issei has been aware of his romantic feelings for all of the girls. Where has it been stated that he loves Rias more than the others? Until recently, that's been an impossible comparison. That's like saying that a parent loves their first child over all of the others. Rias just happened to be the first one he realized he had romantic feelings for. And plus when he realized his romantic feelings for Rias, most of the girls weren't in the series or even attracted to him yet. Issei really isn't one to choose favorites when it comes to those he loves and cares about.