Pretty and popular Chikane has two secrets: one, she's the reincarnation of the Lunar Priestess, and two, she's in love with shy Himeko, a girl at her school who's the reincarnation of the Solar Priestess. With the threat of their ultimate nemesis' resurrection looming, Chikane asdds to her list of secrets: she assaults Himeko to make her friend unfit as a priestess. Will these two celestial bodies finally have the chance to become one, or will fate, jealousy and giant robots conspire to keep them apart?