I am also utterly in awe of a comedy ecchi protagonist that for once gives into his desires and actually does the deed. Completely and utterly astonished.
I'm seeing Isis as the author's way of trying to recreate an Esdeath-esque(Akame ga Kill!) character. She's got the power, both physically and politically even. And she's hiding her desires with an outlier of coolness. It'll be a long time coming, but I can't wait to see what will become of it =03.