A dragon with red wings that breathes fire. He lost his biological parents before birth and was raised by Mama-nyan. He lives with the cats and watches over the forest cats as a way to repay his mother. A major characteristic is his extreme dislike of humans. The cats call him "Uncle Wings." He calls Mama-nyan "Mother." First person: I (calm, formal) / I (childlike, soft). He uses a composed "Watashi" normally or in front of humans, but becomes a childlike "Boku" in front of Mama-nyan, just like when he was young.

A mother cat who raises kittens in the forest. She is broad-minded and deeply affectionate, raising children regardless of blood relation. She is not just kind but also has the toughness of a gritty matriarch. She is the one who raised the Cat Dragon as her own child and is later summoned by a girl named Annerossa at the Magic Academy. First person: I (rough, maternal). She speaks with a Tokyo-style maternal dialect—blunt, bossy, but very caring. She is the one who raised the Cat Dragon, Yakumo, and the Greater Demon.

A white cat who dreams of having her own territory. She is good at hunting and highly skilled in magic. She is a hard worker and can be a bit over-eager. She meets a human girl named Gally during her travels. First person: I (refined, elegant). She speaks like a high-class lady and is a bit prideful.

A powerful black cat living in the deep forest. He is proactive, such as suggesting a plan to his brothers to hunt a bear. As the story progresses, he becomes a heroic figure to the cats. His interaction with the human Stan is a highlight of the story. First person: I (rough, masculine). Blunt but cares deeply for his comrades.

First person: I (majestic) / I (formal). He tries to maintain his dignity, but when his cat-like instincts or his desire to be pampered by Mama-nyan come out, he becomes comical. He calls Mama-nyan "Mother." The cats call him "Uncle Horns."

Kurobane's brother cat living in the forest. He is highly curious and loves to observe his surroundings intently. He has a knowledgeable side, gaining wisdom through observation. First person: I (energetic, boyish). Note: Since the four brothers (Kurobane, Haebuchi, Chiikuro, and Kurotama) were raised together, he uses a lively, unpretentious "Ore" even when discussing "bear hunting plans" as kittens. Tone: Depicted with the clear, curious tone of a young boy cat.

Kurobane's brother cat living in the forest. He thinks up plans to hunt bears with his brothers. He is characterized by having more courage and initiative than most cats. First person: I (bold, boyish). Note: True to his mischievous and brave personality—longing for human adventurers and running away—he consistently uses "Ore" in front of humans (like Gartz and Milara) and his brothers. Tone: A mischievous, fearless, and energetic boyish tone.

A tomboy raised in an orphanage. She is cheerful and caring, and is loved by the children at the orphanage. She meets Shirotae during her travels and they become friends. First person: I (tomboyish). She has a lively, caring, and straightforward way of speaking.

The prince of the kingdom where the cats and the dragon live. He is highly curious and has a strong longing to be an adventurer. He has spent time with Kurobane since he was a baby. First person: I (polite, youthful). He has a curious, youthful, and energetic way of speaking.

A cat living in the castle town. He has a gentle personality and is a kind-hearted meddler. He can't leave someone he's interested in alone, being so caring that he can't sleep if he doesn't help. His hobby is observing humans. First person: I (cool, mature). Speech Style: He doesn't have a specific catchphrase, but his speech reveals a personality that is "slightly cynical and twisted, yet unable to hide his meddlesome and caring nature." Unlike the straightforwardly energetic "Ore" of Chiikuro or Kurotama, his tone is more like a cool, intellectual older brother, yet with a somehow approachable manner of speaking.