Yuki Yamanaka is an ordinary girl, that lives an ordinary life and has ordinary family and frinds, but her life changed after she saw a black cat , strange things began to happen....

On her birthday nighte a mysterious person sneaks in to her apartment, and reveals himself as a nameless samurai ghost, telling her that she is one of the chosen ones of the nine elements that have to finds the Legendary dragon treasure to stop the dark organization that is trying to take over the world.

From this moment her life changed forever.....