Оver the century lasts a war between the Galactic Empire and Free Planets Alliance. One night a warrior - a girl with the prophetic skill - dreams a mysterious amulet and some some men in black clothes, who are seeking after it. The girl resorts for help to her leader, who is an expert in symbols. Together they unravel a mystery of the Holy Grail. But the main is hidden from their eyes: the existence of the the third power which has provoked the war for 150 years and brought the sides against each other in the frantic desire of possessing the Grail...