Kinami Mizuki has been able to see things others cannot since childhood — a secret her mother made her keep. Three days after her mother's death, on a rainy night, she looks out the window and sees a figure walking in the rain that looks exactly like her. She runs after the figure and encounters a mysterious young man who says he has come to take her somewhere. He works for her paternal grandfather and leads her to the remote village of Ugetsu. There her ailing grandfather asks her to take over the Yorozu Ayakashi-ya — a business that handles the problems of gods and spirits.