Negima!- Asuna Kagurazaka

As one of the main characters of the series, Asuna has been known to have quite a short temper and frequently her actions are a bit rash, but at the same time, has some aspects that display her maturity, especially when it comes to doing the right thing. Although at first she really detests Negi, over time she becomes like a big sister role model to him, as she does resemble Negi's cousin, Nekane, in a way. Her background is somewhat of a mystery, since she was orphaned at a young age. Yet, as she learns more about Negi, some things do occur that suggest clues to her past. One of the few students who has an job outside of the school. Although she isn't exactly a bright student, she is shown to have strong fighting skills and is a compassionate person when it comes to people that are important to her