Estoril is a fictional character from the multimedia franchise Busou Shinki, which includes anime, figures, and games. She is a type of Shinki, a small, intelligent, and highly customizable combat android designed for battle and companionship. Estoril is themed after a race queen, featuring a cheerful and energetic personality. In the series, she plays a supportive role, often providing encouragement and motivation to her fellow Shinkis. Her design emphasizes speed and style, making her stand out among the other Shinki characters.