You and your best friend have been picked on by the same bullies for as long as you can remember. One day, right when the two of you are cornered, a mysterious girl comes to your rescue and fights off your pursuers! Inspired, you immediately join her at Toushinryuu Karate Dojo.

Once you’ve taken your first step into the world of karate, you find yourself on a journey that will test your body, mind, and heart.