In the timeless battle of good and evil, can love triumph? Shy Himeko adores Chikane, the gorgeous and cool "princess" of their exclusive boarding school. She's been looking forward to their joint 16th birthday party for weeks. But on that fateful day a shrine appears in the sky, giant robots ravage the school, and Himeko discovers that she is the reincarnation of the Solar Priestess--and Chikane is the reincarnated Lunar Priestess. As dark secrets unravel, one thing is clear: their life will never be the same...
On the moon, there is an old shrine that has fallen into ruin. On the birthday of Himeko Kurusugawa
and Chikane Himemiya
, there is a sudden eclipse, and a voice calls the eight necks of Orochi to rise and destroy the Solar Priestess and the Lunar Priestess. The two girls soon find themselves under attack by the Orochi, but Himeko's close friend Souma has resisted the call of the Orochi and has sworn to protect her, no matter what.