The story of this work takes place in the parallel world of the United States, which is a world where magic actually exists. In order to end the history of persecution, the witches reached an agreement with the government 300 years ago: once the country is threatened by war, they will go to the front line to protect The country contributes. The show is set in modern times, where young women are drafted when they reach the age of 18 and sent to a place called Fort Salem to learn magical combat.
At the beginning of the story, Raelle, Abigail, Tally and others were just at the age of enlistment and were recruited by the army. They are trained in various ways to fight against a terrorist group called Spree, also composed of witches.
