Tita Mu Koshigaya, Tita to her friends, is a young woman who captains a ship, the Cha-Cha Maru, whose business is capturing exotic creatures in the sea of clouds of the planet Ietta, a gas giant, and selling them to collectors and zoos. By chance, she saves Elysse Aldo Mordish, a young woman of her own age, from a rogue faction of Ietta's own military forces, led by the armoured commander Guizel, who already killed Elysse's scientist father. As the military conducts a vicious chase for Elysse, it becomes apparent that she holds the key to a secret that could determine the fate of the entire planet's independence. Source: Wikipedia