Omg, same bad actors regurgitating the same points they'd already made in the comment section of manga about that girl who "isn't a virgin anymore". Get lives losers. Same goes for the 'intellectuals' I'd already encountered in other places, trying to dissect every minute detail in the context of scholarly things they happened to be reading at the moment or were strongly imprinted with in the past. You are the smart, go somewhere else - if you haven't noticed already from the comment section or the title itself, it's manga for introverted horny teenagers dreaming of their own manic pixie dream girls* harem. Your inquiries regarding, for example ,creatures' of the night presumed moral system are not needed here, specially when there's nothing to very little to draw the conclusions about it in the source material. Find appropriate lavatories for your brain vomits.
*what it looks like for now ; we'll see how much character development gals will get.