Bio: Kururu is one of the four faries in Bottle Fairy. She's living in the human world and studying it. Kururu tends to be a very determined person over all. She also seems to react to situations a bit more emotionally.
Opinion: She's a very determined person. Plus she seems to be good at leading the direction of the episodes. Yeah she probably is considered the lead character. But unlike some leads, she doesn't steal the whole show. So let's thank her for that.