Hana Mutou is a central character in the anime series Captain Earth. She is a mysterious girl with a unique connection to the Earth Engine and the Livlaster. As a member of the main crew, Hana plays a critical role in the battle against the alien invaders known as the Kiltgang. Her enigmatic origins and abilities make her a key figure in unraveling the secrets behind the planetary gears. Throughout the series, Hana's relationships with other characters, especially Daichi Manatsu, are pivotal to the storyline's development.