Welcome to Valemnia, where a war between its citizens and demons have been ongoing for thousands of years. It’s the world wherein people blessed with magically-inclined abilities are united to combat the dark force that tries to endlessly take control, but never once was it truly defeated. The struggle between the two opposing forces continues. Now, welcome to Celeste Academy, a prestigious institution built for training its students to become valiant knights to defend the world. How would you want to meet the circle of the top twelve students who are considered to be the most powerful of their generation? For Valeriana Kerrigan, it’s hell. Because there’s only one problem. She's the only human.