When Maruoka Kanan, a sophomore at university, returned home to her parents Kawagoe "Little Edo" after an interval of six months, there was a young man in a hakama at the garden.Kanan became afraid because her mother had told her that the ghost of a young man appeared in the garden well since I was a child. However, she is told that he is a second-year high school student named Sekikazuma, and he is staying with his relatives, Konan's house, when his parents are overseas.