17 years ago, her mother, The Empress of Hanazuko, was killed in a fire. A sabotage. Mari Yamazaki is now old enough to travel to Astaria to seek revenge. Plotting her whole life, Her goal is to expose the D'Arco bloodline for their crimes in Hanazuko, and to stop them from wiping Hanazuko of the map permanently. To not let them get away with the Murder of her mother. Along the way, she must disguise herself, go through many tangled challenges, and become a royal guard at the palace. But, she could get distracted by the wrong person, or is it the right?