They got the petite loli in a combo on white gothic lolita and english attire (who is secretly WAY older but ages slower), they got the main female who is unaccustomed to human cultures and is cute, they have the childhod friend who is WELL endowed, they got the psycho mom look-alike, and that's all in only the first 4 volumes my friend. And I don't think I even typed all of them. But that's the manga. Have NO idea about the animation.