Machigatta Ko wo Mahou Shoujo ni Shiteshimatta

Summary

While searching for a brave candidate to become a magical girl and defend the world from evil, a mythical creature finds Kayo Majiba, a cute young lady who seems like the perfect fit. But when this newly turned magical girl proves to be a crude delinquent who goes berserk in a conflict, it becomes clear that this may have been a terrible mistake. Now evil-and any innocent bystanders-will face the rage of a magical girl gone wrong! (Source: Seven Seas Entertainment)