Merino is a magical sheep-like creature who lives alongside Luna in a poisonous mushroom house located deep within the Black Forest. Merino is capable of transforming into the form of an ordinary sheep. As one of Luna's few close and loyal companions, Merino provides company and support during Luna's solitary life in the forest, often expressing concern for Luna's well-being. Merino has black eyes. The available information does not provide extensive details about Merino's background, motivations, or character development beyond the role of a faithful companion and the ability to shift into a sheep form.