As a high school student, Hikaru always saw herself as an ordinary girl, albeit with a mad scientist for a father. Her days were spent hanging out with her closest friend, indulging in dreams of the boy of her affections and keeping up with her favourite superhero series. This all changes when her unknown history catches up with her - she is shell shocked to discover that she is the sole survivor of a royal lineage from a distant world. To add to this immense revelation, she is also the keeper of a powerful suit of armour that could determine the destiny of an entire galaxy.