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 spots a figure walking in the rain that looks exactly like her. She gives chase and meets a mysterious young man who leads her to the remote village of Ugetsu and her ailing grandfather, who asks her to take over the Yorozu Ayakashi-ya: a business that handles problems brought by gods and youkai.