Takashi Natsume is a spirit seer. In simpler terms, he sees things that ordinary people do not notice: ghosts, gods, and demons. And this ability does not make the young man happy at all. From childhood, Natsume was "different from everyone": he told tall tales, he feared empty places… As he grew older, he learned to keep everything to himself and not be frightened (at least in front of others), but he never became like everyone else. After another move—Natsume relocated to the area where his late grandmother lived—spirits began to pursue him more actively and even attack. Natsume learns that they are hunting for the mysterious "Friendship Notebook" that his grandmother kept, recording the names of the evils she defeated. Thus Takashi inherits it and decides to dispose of his grandmother Reiko"s estate in his own way…