[Machine Translation] A great oriental country in the Middle Ages. This is a mystery set in a back palace where the emperor's concubines reside. The main character is Nekoneko, a girl who works as an apothecary in a flower town. When she goes into the forest to gather medicine, she is kidnapped and sold to the imperial palace to work as a servant girl. One day, Nekoneko, motivated by her natural curiosity and desire for knowledge, secretly solves a series of deaths of babies born in the palace. The beautiful eunuch, Im Ji, sees through this and selects Nekoneko to be the maid of honor to the emperor's favorite queen... as a "poison tester".