Natsume's deceased maternal grandmother who bequeathed him his spiritual abilities and the Book of Friends. She previously bullied hundreds of spirits into servitude, leaving behind numerous contracts that Natsume now works to dissolve.
A pervasive presence whose past actions and the Book of Friends continuously shape Natsume's identity and moral choices.
S1E1 Book discovery, S1E5 abandoned station ticket, S2E5 tree promise, S3E13 past relatives, S5E1 doll theft, S6E7 Gomochi message.
A historical bond defined by binding contracts and unresolved tensions, influencing Nyanko's current loyalty to Natsume.
S1E1 Book origin, S2E1 look-alike spirit, S6E7 Gomochi message.
A historical tension reflecting generational conflicts in exorcism practices and youkai management.
S3E7 Matoba's ambition, S5E8 Natori's history with Matoba, S5E3 letter.
A thematic contrast highlighting how Touko's kindness directly counters Reiko's past, shaping Natsume's upbringing.
S1E1 Book, S5E10 backstory, S6E7 Gomochi message.
Explore the full interactive character relationship map of Natsume's Book of Friends