This is another manga about a downtrodden person. But it's not a dark manga. The girl is likeable and strong. The manga's also exciting, you get a nice sense of each volume having something important in it.
Man I am not doing too well at explaining why this manga is good and deserves the score I think it does. Try it. If you're thinking of trying it or you stumbled upon accidentally, then try it. It's perfectly balanced, people of most inclinations will be able to enjoy the story.
Basically, in this world, everyone is either mean or stupidly ignorant, and being led around by manipulative people. The main character is so likeable that pretty much anyone decent falls in love with her. The art style is distinctive, not realistic, Choko, the villainess reminds me of Frieza. But despite that the girls are really pretty.
This isn't a realistic manga, despite it not having anything unrealistic. But it has strong emotions. The matches are intense, exciting, but there for a purpose, as part of the story.