I saw the anime first so when I started the manga I was surprised at just how many more levels of intrigue it has to it. There is still the story of the girls and their struggles but sharing space with them is this intricate tale that very rarely surfaces in the short anime series. This other story is sort of like a Tom Clancy thriller but somehow better. I normally don't really enjoy these types of stories but somehow this manga puts it together in a way that us hard to put down.