Grimm & Gritty

For the past five years, Shinra Touya has lived on an island with a beautiful girl since he lost his memories. One day, his favorite idol shows up, and the three of them enter a battle with Grimm users: humans with a magical connection to fairy tales that allow them to transform and use powers. And it turns out that not only is his favorite idol and childhood best friend Grimm, but so is Touya!