One of the bunny girl tribe Anna lives in a frontier town in Stivare peninsula, working as a blacksmith specialized in crafting weapons and tools from the sacred stone under her master Adolfo's instruction. One day a suspicious person shows up near their house and leaves a letter. She finds a surprising fact in the letter that the five sacred stones of origin are spread over the countries in the peninsula. They are sacred stones of dangerous kind that drive people mad. Since it would cause big problems, Anna has got to take a journey to save Stivare peninsula. Anna struggles to thwart the conspiracy that involves all over Stivare peninsula, while she resist and sometimes enjoy various H events!