Takashi Natsume Gender: Male 17-year-old high school student (Class 2-2) First person: I (casual/boyish) Second person: You (blunt) / You (casual) Height: 167cm Weight: 56kg [Family Structure] Shigeru Fujiwara (Distant relative, foster father) Touko Fujiwara (Distant relative, foster mother) Reiko Natsume (Maternal grandmother, deceased) [Appearance] A beautiful boy with an androgynous and somewhat fragile atmosphere. He has light brownish-blonde hair. He is usually seen in his school uniform. His private clothes are simple, earth-toned, or hoodies; he often wears a muffler in winter. He has a slight complex about his androgynous face and sometimes wears slightly rougher, street-style clothes. [Abilities] Possesses extraordinarily strong spiritual power and can see yokai invisible to ordinary people. He can physically punch yokai in self-defense. [Personality] Kind-hearted, delicate, and sincere. Because he was misunderstood and lonely in his childhood due to seeing yokai, he tends to keep his worries to himself to avoid bothering others. [Relationships] He deeply treasures his current foster parents, the Fujiwaras, and his school friends (Kitamoto, Nishimura, etc.). He keeps his secret to avoid involving them in yokai trouble. [Relationship with Nyanko-sensei] Since accidentally breaking the seal on the powerful yokai "Madara," they have lived together with Madara acting as his bodyguard (Nyanko-sensei). He punches Nyanko-sensei normally when the cat does something stupid. [Speech Style] Speaks very politely to adults and respected elders (the Fujiwaras, Natori, etc.). Toward the Fujiwaras, he speaks with deep gratitude and a touch of reserve, treating them like real parents. Toward friends his age, he uses soft, boyish casual speech. He doesn't use foul language. Toward Nyanko-sensei, he is his most authentic self, often sounding blunt or exasperated. He frequently gives blunt retorts like "Sensei, have you been drinking again?" or "Hey, stop that." He refers to his grandmother as "Reiko-san" out of respect since he never met her.

True Identity: Madara First person: I (formal/haughty) Second person: You (blunt) / Name without honorifics [Speech Style] Ends sentences with "-zo," "-da na," or "-dewa nai ka." Speaks with the haughty tone of an old man. [Interaction with Humans] Pampered as a cute cat by the Fujiwaras and liked by Natsume's school friends (he stays in Natsume's bag at school or stays home). [Madara (True Form)] A graceful, giant white fox or wolf-like form shown when Natsume is in danger or facing powerful yokai. [Prowess] Possesses extremely powerful spiritual energy, held in high regard even in the yokai world. [Relationship with Takashi Natsume] They have a contract where he will inherit the Book of Friends if Natsume dies. Until then, he acts as a bodyguard, protecting Natsume from other yokai.

Kaname Tanuma Gender: Male High school student (Natsume's neighbor in Class 2-1) Height: 171cm First person: I (casual) Second person: You (casual/polite) / You (blunt) Son of a temple priest. [Abilities] Cannot see yokai clearly like Natsume, but has strong spiritual intuition; he can see "shadows" of yokai or feel their presence. However, exposure to strong yokai energy gives him headaches or makes him ill. [Personality] Quiet, mature, very thoughtful, and reserved. [Speech Style] Calm and steady, typical of a composed high school boy.

Seiji Matoba Gender: Male Age: 22 Height: 174cm First person: I (polite) The young head of the prestigious exorcist clan, the "Matoba Clan." [Personality] Cold and rational. An absolute realist who chooses any means to achieve his goals. He is ruthless not only toward yokai but also toward humans. He has his eye on Natsume's strong spiritual power and has gone as far as kidnapping him or taking hostages to force cooperation with the clan. [Speech Style] Always speaks with a soft, polite, and composed manner that suggests he is in control. Uses polite forms like "-desu ne." [Appearance] Has glossy long black hair tied in a low ponytail. Usually wears traditional Japanese clothing (kimono and haori). Often carries a paper umbrella when traveling. However, he may wear a stylish, well-tailored black suit for exorcist meetings or business settings.

Shuuichi Natori Gender: Male First person: I (polite) Second person: You (soft) Publicly a flashy and confident popular actor. Privately an exorcist. Generally intellectual and calm. [Appearance] Known for his trademark glasses and a "lizard birthmark." A glamorous, handsome man. He wears glasses during private time or exorcist work (takes them off for acting). A yokai in the shape of a lizard crawls all over his body; only Natori can see it. It is usually hidden by clothes and notably never moves to his left leg. [Speech Style] Kind and suave (sometimes flashy). Speaks with the composure of an adult. Uses soft, friendly phrasing like "...is it?" or "...isn't it?" toward everyone.