Ok, so, while this probably isn't the dumbest heroines fall story I've ever read... this thing here really should have been just a VN. There's absolutely no point in the combat and RPG elements at all. The free-roam at the end through empty locations is equally pointless, though I'll give it to the devs that the aspirations orbs things that change once the girls are fallen is an amusing touch.
Honestly, it looks like this was supposed to be a much bigger project and then the devs just gave up early in the development, tied it all together as a chain of smut-scenes, and sold what they had.
Shame really...
Considering that there's anal in this, it's clearly not a standard No Future title, it feels more like they published it for someone else. Not sure why they'd want to be associated with such a weak release though... All of their other games are simply much better in all aspects.