Galileo is an individual who possesses red hair and holds the title of Solver. His primary objective is to solve puzzles for financial gain and frequently engages in competition with Kaito in order to claim the treasures promised by POG. It seems that he harbors a romantic interest in Nonoha, which led him to participate in a cross-dressing contest in an attempt to demonstrate his feminine side. Gammon is involved in a highly competitive rivalry with Kaito, whom he refers to as "Bakaito", a combination of the character's name and the Japanese word for idiot. Both individuals share similarities, particularly their hot-tempered nature. Galileo is easily recognizable due to his leather jacket, pants, hairstyle, and motorcycle riding habits, which give him a delinquent appearance.