Magica Wars

Magica Wars (魔法少女大戦, Mahō Shōjo Taisen) is a Japanese media franchise created by the internet television variety show 2.5 Jigen Terebi. It consists of 2 online games, one handheld game for PlayStation Vita, and an anime television series by Gainax that aired on April 8, 2014. Each of the magical girls personifies each of Japan's 47 prefectures, with their respective voice actresses born from that prefecture the character represents, and the character designs determined by an online contest hosted by the art website Pixiv.

Plot
The dragon sleeps under the ground of this land… It gives an abundant harvest on the land when sleeping, but brings a disaster when it is awake. In every decade or hundreds of years, the dragon moves its body as if it tosses about unconsciously. The movement becomes the distortion and causes “impurity” that can create corrupted beings known as Magatsuhi, which lavishes an evil on people. And now, there is a a massive Magatsuhi outbreak spread across the prefectures of Japan. The Gods who foresaw the Japan's greatest harm, dividing own power across Japan as Misakis to gather “Magica” who can expel the “impurity” and exorcise Magatsuhi.