Natsume Takashi has the ability to see spirits, which he has long kept secret; he inherits a strange book that belonged to his deceased grandmother.
Natsume discovers that the heirloom Book of Friends that his grandmother, Reiko, gave him possesses the names of the spirits she defeated and bound to her will.
Natsume is visited by the village's local god who is currently fading because of the lack of devotees.
Natsume is implored to help spirits who are currently being exorcised.
Natsume's secret is found out by Sasada.