Living in the high school student dorist parents have sent him a mysterious lamp that, once polished, causes the academy’s idol Zadou Sierra to abruptly appear! What’s more, she is dressed in a maid outfit! After she appears, her father arrives and explains that Sierra is a descendent of a larant their enie, Sierra cannot use herways, and so she lives with the weak-bodied Jin ins the fantastic story of Sierra, the Ojou-saenie, and her master Jin