In a land of dragons, citizens called breeders train their dragon pals: Races of dragons are born from breeders who are marked with Seikoku, also known as star brands: Learning to ride and tame dragons comes easy to most students at Ansarivan Dragonar Academy : except for Ash Blake, a first:year student who is known by his classmates as the "problem child:" Despite his unusually large star brand that marks him as a future dragon master, his dragon has never appeared: Until now, that is: One day, while challenging fellow student, princess Silvia Lautreamont, to a dragon race, Ash's dragon appears, but in a form different than any dragon ever seen before : a beautiful girl: Ash names her Eco and soon discovers that this new dragon has attitude to spare, as she promptly informs him that she is the master, and he, her servant: Ash's problems with dragon riding have only just begun: