Shiemi is the daughter of the woman who runs an Exorcist-only shop. She is kind and has an abiding love of gardening, but often lacks confidence in herself. Before the series, Shiemi had never gone out of her home and tended to the garden with her grandmother. After her grandmother died, Rin and Yukio exorcised the demon that was leeching her life force and she decided to become an Exorcist.