The term 'Fairy Tale Brother' refers to the characters Hansel and Grimm, who are featured in the Brothers Grimm fairy tales. Hansel is a six-letter name, while Grimm is a five-letter name. The Brothers Grimm were two German brothers, Jacob and Wilhelm Grimm, who collected and published folk tales and fairy tales during the 19th century. Hansel and Grimm are two of the most famous characters from their collection, appearing in stories such as 'Hansel and Gretel' and 'Rapunzel'.