Master of Martial Hearts (2008)

Aya’s life takes a sadistic turn when she enters a girl-on-girl martial arts tournament. She’s out to prove she can take a pounding as well as the other knock-outs in this clandestine competition, and if she survives a series of fabric-shredding fights with titillating teachers, sultry stewardesses, and moe maidens, Aya’s wish will be granted by a mysterious jewel known as the Platonic Heart.