I do think it's always negative, but if you want to go more detail on your viewpoint feel free.
Well, the story arc goes like this.
Kisara is a girl who has always loved martial arts, being the best in her co-ed martial arts class. This strength gives her great pride in herself. One time at a tournament, she wins the championship against the best male of that martial arts in the division. However she was walking by ans she overhears the guy's friends asking if he threw the fight, and to cover himself he lies and says he did. This seriously hurts Kisara's self-respect and pride in her skills. As a result, she joins a street gang of martial artists because "Don't you just love street fighting? No protective equipment like gloves or helmets to get in the way, and no rules to hide behind so you can't cop out and say you lost on purpose." A while later Kisara goes against the protagonist of the series Kenichi, who says he has made a vow not to fight women. This angers Kisara, seeing it as sexist and stuff like that pisses her off. She starts to wail on him, seeing how long he will stay cool with his 'macho' attitude but he never retaliates, saying that "I understand that you have your pride, but I have my principles.". After the fight Kisara reflects on what happened and eventually realizes that "he wasn't patronizing me or trying to be cool. He was just trying to stick to what he believed in." The two characters eventually become allies and friends later in the series.
The series delivers better context than just a synopsis, but I really liked how it showed both viewpoints as equally valid, and showing the dark side of each viewpoint, rather than merely having one side be good and one side be bad.