In a school where martial arts are standard curriculum, Ryoko Mitsurugi, the Samurai Girl, is the top fighter and the most popular student around. This changes when the uncouth Shizuma Kusanagi transfers in from Kansai. He may not have the grace of Ryoko, but with his amazing fighting abilities, he could soon be the most dominant martial artist at Daimon High. Principal Todo encourages the rivalry between the competitors, setting up an exciting K-fight tournament where even the teachers can join in and settle once and for all who's the top dog on campus.