Oh hey, generic anime guy winds up with two new step sisters, one a loli and another that takes more than a little of her character design from Rias Gremory...though her tits may even be bigger than that. Dad has to bail for awhile; of course he does. This is either the start of some harem hijinks or an H anime. Even more generic twist! They're devils! They were using you and your father to hide from their enemies for awhile, but now that you've discovered their secret...they're going to have to erase your memory by beating your ass. Watch as our protagonist turns into the same kind of pussy that they all do in a long line of anime pussies that somehow wins the heart of...wait. Did that fucker just do the equivalent of shouting "Guyver!"? Yes, yes he did. Is he beating their asses like they said they were going to do to him? Like a kettle drum. Not this man's first rodeo apparently, and he's actually going to try to take care of these two? And one of them's a succubus...who maneuvers you all into doing all sorts of...yeah, the blu rays are going to be awesome.