Streghe Verso Nord

A young writer who wrote a fantasy novel about witches meets a man who reveals to him that everything he wrote is true: witches are real, they're beautiful and they're everywhere. So he's asked to join an international organization dedicated to neutralizing them one by one in the only possible way: you get close to them, headbutt them and then drag their bodies for seven steps to the North. (Summary by babaracus)