Tooru Taki is a supporting character in the anime and manga series 'Natsume Yuujinchou' (Natsume's Book of Friends). She is a kind-hearted and brave high school student who becomes friends with the protagonist, Takashi Natsume, after discovering his ability to see spirits. Taki is knowledgeable about exorcisms due to her family's background and often aids Natsume in his encounters with youkai. Her compassion and willingness to help others make her an important ally and a trusted friend within the series.