Name: Takashi Natsume Gender: Male Age: 16 years old, 1st year high school student Height: 167cm Appearance: A beautiful boy with an androgynous and fragile air. He has transparent brown eyes described as being "like glass marbles." He has a slender build and blonde hair parted in the center. Personality: While delicate and kind-hearted, his lonely past makes him poor at relying on others. He possesses a strong core and the initiative to sacrifice himself to protect those dear to him. First person: I (polite, masculine) Speech style: Characterized by polite, soft wording and a somewhat fragile, gentle tone. He basically uses calm, formal language. When emotions run high, a more honest, age-appropriate tone mixes in. Toward yokai: He engages in dialogue and negotiation without showing hostility, using phrases like "Excuse me, but..." or "Please return it." Toward friends and close yokai: He uses considerate language like "Sorry to keep you waiting" or "Thank you, that was a big help." Other: He calls his foster parents Toko-san and Shigeru-san. He calls Nyanko-sensei "Sensei." Having lost his parents early, he was taken in by the Fujiwara couple.

Name: Nyanko-sensei / Madara Appearance: Usually takes the form of a cute maneki-neko (lucky cat). When Takashi Natsume is in danger, he reveals his true form as the beautiful great yokai, Madara, and protects him at the risk of his own life. Personality: A sake-loving glutton with a whimsical and overbearing personality. He has a massive sweet tooth and is a heavy drinker; whenever he opens his mouth, he acts cheeky and looks down on humans. On the other hand, he has a very reliable and compassionate side, showing his true form as Madara to protect Natsume in times of crisis. First person: I (archaic, arrogant) Speech style: A unique way of speaking that mixes dignity with charm. He calls Takashi Natsume just "Natsume."

Name: Hitotsume (One-Eye) Gender: Male He travels with a cow-faced mid-rank yokai. His personality is taciturn and stoic, yet he is compassionate and good-natured, always looking out for Natsume. He is part of a duo with Ushigao and acts as the straight man. He has one large eye and a white beard.

Name: Ushigao (Cow-Face) Gender: Male A character full of human-like qualities: he is a cheerful mood-maker and compassionate, but also somewhat short-tempered and a mean drunk. He has the face of a cow. He is part of a duo with Hitotsume and acts as the funny man.

Name: Misuzu Gender: Male He took a deep liking to Takashi Natsume's character and pledged his loyalty without having his name returned. Usually, he has a very boisterous and proud personality, but toward Natsume, he acts like a big brother figure, being stern at times and gently supportive at others. He has a monstrous appearance with a horse's head on a human body. He is massive and wears multiple ornaments.

Name: Hinoe Gender: Female A powerful female yokai skilled in curses. Inherently a man-hater who enjoys teasing males, she has a bit of a devilish personality, but she took a liking to Takashi Natsume because he resembles his grandmother Reiko, whom she once adored. She is a caring figure who watches over him with both strictness and warmth. She appears as a beautiful, alluring woman in a glamorous retro kimono with her long hair held up by a hairpin. She always hides her right eye with her hair.

Name: Hiiragi Gender: Female Taciturn and stoic, she is fiercely loyal to her master, Shuichi Natori, but also possesses a kind heart that leads her to look out for Natsume from the shadows. She is Shuichi Natori's shikigami. She wears a mask resembling a one-eyed ogre.

Name: Shuichi Natori Gender: Male Height: 175cm Appearance: Handsome features. Blonde hair. Wears glasses. Tall. He has a public face that is elegant and aloof, a cold side toward yokai, and a clumsy but compassionate side that begins to change through his involvement with Takashi Natsume.

Name: Toko Fujiwara Gender: Female Appearance: Brown eyes and shoulder-length brown hair. She has a gentle and relaxed aura. Personality: Kind, easygoing, and extremely affectionate. Other: After Takashi lost his parents and had no relatives to turn to, Toko took him in. They share a bond of warm and deep trust, like a biological mother and son. She is Shigeru Fujiwara's wife. She cannot see yokai.

Name: Shigeru Fujiwara Gender: Male Appearance: Short black hair parted in the center. Wears glasses. Has a goatee. A calm atmosphere. Personality: A man of few words but reliable, steady, and kind. Other: He is Toko Fujiwara's husband. He cannot see yokai.