For as long as he can remember, Natsume Takashi has had the rare ability to see and commune with spirits, inheriting the power from his late maternal grandmother Natsume Reiko. This ability resulted in his having a lonely childhood because children his age considered him strange. He had also been passed from one paternal relative to another. Upon her death at a young adult age, Natsume Reiko bequeathed to her grandson her Book of Friends, a book containing the names of hundreds of spirits she had bullied into servitude.
