Thanks to a highly advanced technology known as Mana, mankind has conquered war, hunger, pollution, and every other problem on the face of the earth. Angelise, the beloved First Princess of the Empire of Misurugi, is expected to wear the crown. However, she is revealed to be a Norma, someone who cannot use Mana. She is exiled to a secluded island where she meets Norma girls who pilot transforming humanoid Para-mails to hunt giant invading Dragons. Having lost her name, Ange becomes a warrior.