One word to describe this series: yasashii...
The title of the series is referring to the Book of Friends that Takashi Natsume inherited from his powerful grandmother, Reiko Natsume. It contains the names of spirits she defeated in different games and pranks in order to kill time since she was not liked by other schoolmates and generally people because she was a 'weirdo', appearing to speak on her own with no one , seemingly, nearby. We watch Natsume giving back to those creatures their names, while he develops as a character, coming closer to both people and the supernatural.
Thus, could it be that the series' title is also referring to the series itself, each episode being a page of the 'book' and a story about Natsume and his new friends, whom he meets along his way?
