Through the development of groundbreaking information transfer and material generation technology called “Mana”, various problems, such as pollution and war have disappeared, and days of peace have arrived in the world. However, the people who receive the benefit of the Mana live in a false peace. Those who cannot use the Mana, referred to by the derogatory term “Norma”, who are seen as an opposition to structures of society, live in oppression. Because this is the norm, the people who use Mana do not question it.
The first princess of the Misurugi Empire, Angelise Ikaruga Misurugi, was convinced of the belief of exterminating the Norma. But when she turned 16, and was baptised, her elder brother Julio, exposed her as a Norma to the public. Angelise, who is bewildered by the revelation that she herself was a Norma all along, turns into a target of hate of the people in the blink of an eye. Ange is exiled to Arzenal, a military base where Norma are conscripted into service, and then starts her new life as a Norma soldier. As she struggles to adjust to her new identity, Ange’s now stormy life takes one surprising turn after another and she embarks on her quest to correct the world she lives in.