Stomper, an Earth pony with root like tendrils erupting from his forehead, is a mercenary that collects contracts to hunt manticores, marewolfs, hydras etc. But when he travels to Ponyville for a vacation, his supplier appears at Ponyville with more missions for him. Looks like his work is never done, though there is something eating at him about his past causing his hatred for monsters, his depressed mood and his alertness during full moons. (As the story continues, I will add more of the cast that will be more involved in the story)