Matsurika serves as a female officer in the Inner Palace, and her one unusual gift is a memory sharper than most. When she agrees to stand in as a practice partner for a marriage meeting arranged for a son of a prominent family, the man who arrives is Emperor Hakuyou himself, who wanted to experience such a meeting. Taking an interest in her talent, he tells her that her first step should be passing the civil examination. The result is a Chinese-flavored Cinderella tale of an emperor and a palace girl, blending drama, fantasy and romance.