Amano Miu is a just your run-of-the-mill mahou shoujo. But after her classmate, Kido, finds out her secret she must contract with him and become his servant. If that wasn’t bad enough she still has fight the “evil beasts” that plague her city. And it also doesn’t help that Kido’s little sister is a jealous brocon eager to break Miu and Kido’s growing bond though whatever means necessary... (Source: MU)