Ange Vierge is so gay, like holy shit.
"The Progress can use powerful abilities based on the strength of their relationship with their alpha Driver"
So basically the more sex, the stronger you get.
Also, did eveyone notice the singer in the OP singing [Dai suki] when the scene shows Saya and Amane looking at each other? If that's not a foreshadowing, then I have no idea what is.
What irrates me is the fact that there hasn't been a single male character in their... island(?). I mean, they're practically showing people their bare nude form while standing out the balcony, ever so carefree. Probably means there aren't any males in the island. The Earth had grown men, so maybe they're a different faction or something? Imagine a whole island full of naked men, though. Truly, truly, outrageous.