In the early 20th century, along with technological advances, the scientists were able to develop a complex magic. schemes have been created using a combination of magic and science,able to give life and personality of inanimate objects. Beings as these became known as the mechanical doll or Avtomatami.Glavny hero Akabane Rayshin, accompanied by a beautiful teenage girl named Yaya (which is actually a puppet weapon Rayshina) arrives at the Royal Academy, to become the best puppeteer in the world.However, test results break his dream in tatters, but his fighting skills and determination are second to none. Rayshinu have to compete with the strongest of the candidates, if he wants to achieve his goal. ranobe Kikou Shoujo wa Kizutsukanai from Kaitou Reiji.