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 is possessed by a spirit; obsessed with returning home, he remembers the events that occurred just after his father's death.

Natsume continues to spend his days giving back Youkai their names from the book of friends; as he's heading home, he finds himself chased by a giant, rolling pot.

On a rainy day, Natsume meets a young girl youkai; her name isn't in the book of friends, but she wants his help anyway.

Natsume receives a letter from Matoba, an exorcist whom he's had unpleasant dealings with in the past.