In the year 2045, on the planet Earth where humanity has developed superpowers over time to counter the threat of an alien hive mind.Alice Ardenblade, the young heiress of a knight order, joins a special program for raising Earth's new generation of defenders.But as the old enemy emerges from beyond the stars ever vicious while new threats rise from within, dark times wait for humanity.Armed with an ancient relic, Alice has to step forward and become a knight powerful enough to defend her home."Strong rivals on my side, and even stronger enemies before me, I shall be the sword to cut the darkness."