Three years after the Great Shinra War stripped Soma of most of its plant life, the alchemist Hiodoshi launched Project Espgaluda — an experimental program that grafted artificial armored wings onto children, transforming them into soldiers called Galuda, named for a mythical bird. Ageha and Tateha managed to escape the project and spent the years since in hiding with their mother. Espgaluda II begins the moment they are found.