Most students at Ansarivan Dragonar Academy quickly master dragon-rhythm and subjugation skills. However, Ash Blake faces difficulties and is known as the "number one problem child" in his freshman year. His classmates make fun of him for not being able to summon his own dragon, despite the bulky star-shaped emblem on his clothes indicating him to be a future dragon master. But, Ash's fate changes when his dragon finally appears in the form of a beautiful girl with unparalleled abilities among her kin. Unfortunately, the girl declares Ash her slave and takes away his desired position. Ash's path to becoming a skilled dragon rider becomes a tough and challenging journey.