I like what I see so far, just one minor nitpick. Since they're all just students, they wouldn't be masters of any martial arts just yet; experienced practitioners certainly, but not masters. Their skills and abilities will evolve over the course of the plot so in the future they can be. All characters need to be weak and inexperienced enough to make mistakes and lose from time to time in the beginning, 'cause trust me, [i]they will.[/i]