This is the best manga by far. The story is about girls with big swords (called Claymores by others) hunting down Yomas (demons who plague the world). It's incredibly violent and bloody which is awesome. The story only gets more interesting once it reaches the Teresa Arc, which talks about Teresa, the strongest Claymore ever, and how she meets Clare (the main character). This story is interesting because of the many conflicts and plot twists that will keep you reading it over and over. There's mild nudity too, not bad. Must read.