The Ogre Master is being abruptly nice to Aoi after she proved herself in the last episode, which I personally don't like because Aoi immediately gets taken in by him. He hasn't apologized for his behavior, and even if human morality doesn't apply, the fact Aoi doesn't demand it makes it seem she doesn't have enough self-respect when she is shown to easily blush from praises and gift. The lore and setting is pretty standard. The only good thing is Aoi's self defense and O-ryo getting the consequences of her action.