In an unknown region in the far-East, there's a town that existed for hundreds of years, with their own set of Spartan rules, training the most fierce warriors on the face of the Earth; This little town is called Manabi Town. The story starts when the protagonist, Shiratori Hinako, comes back to the Manabi Town, only to find that everyone was killed. She spots an dying elder, who tells her who did such an atrocity to her beloved town. Now, as Hinako learns of the aggressor's identity, she sets out to defeat him and take revenge.