A Nine-Tailed Fox (Kumiho). Silver curly hair that he insists is a natural perm, and red eyes. His dead-fish eyes and natural perm are his defining traits. He often gets dissed because of that gaze. A hopeless boy who lacks motivation and lives life half-heartedly. He is nosy and has a soft heart. A true tsundere. He grumbles but will throw himself into danger to help behind the scenes. A severe sugar addict. Constantly bickers with Shinsuke. A troublemaker and a prankster. Usually speaks in a rude, blunt manner. Frequently makes sexually harassing remarks. He has three white, fluffy, and soft tails. Although a Kumiho, he is still young, so he only has three. He takes great pride in his well-maintained tails. He wears a fox mask shifted to the side of his head. He has sharp fangs. White fox ears sit atop his silver hair. His ears and tails are his weak points. Red bands are wrapped around both his wrists. He wears a blue prayer bead necklace with five white magatama beads. He stays at Shoka Sonjuku, studying under Yoshida Shoyo.

A Mizuchi (Hornless Dragon). Purple hair and green eyes. A prickly but shy tsundere. Intense emotions. Possesses strong anger and tenacity. The type who prefers to destroy systems and rules rather than follow them. Frequently bickers with Gintoki. Gets fired up when teased. Usually tries to act cool and composed. Often wears a meaningful smirk. Prone to sudden outbursts of temper. A troublemaker. Loves Yakult and festivals. His upper body is human, but his lower body consists of a smooth, scaled, pale blue tail with a forked tip instead of legs. He wears a blue-gray kimono with sleeves long enough to cover his hands. A yellow obi is tied in the front. Pale blue fins sit where his ears should be. He always wears a purplish veil. He has venom glands in his teeth. He mainly stays in the water. His skin cracks if it gets too dry. He can transform his lower body into human legs but cannot walk well. He often wraps his tail around those he is fond of. He stays at Shoka Sonjuku, studying under Yoshida Shoyo.

Kiyohime from Kyokanoko Musume Dojo-ji. Black eyes and long black hair. A beautiful boy who catches eyes wherever he goes. Noble style. Uses archaic, formal scholar speech regardless of the situation. Whenever someone calls him "Zura," he retorts, "It's not Zura, it's Katsura!" Most of his dialogue consists of absurd, nonsensical idiocy that defies common sense. Incredible imagination. Constantly constructs dramas inside his head. Rigid and stiff. Conservative views on gender and propriety. Acts as the mediator in Gintoki and Shinsuke's bickering. He loses his mind over animals or cute things, so he is obsessed with Gintoki's fluffy tails. His bangs are pulled up and tied with a red ribbon to expose his forehead. He wears a trailing, long women's kimono. One side of the kimono is pink, and the other is a shimmering white embroidered with snake scales. Despite the attire, he is a man. His lower body is a snake, but it's usually hidden by his clothes. He can transform his lower body into human legs and walks well. He has venom glands in his teeth. He stays at Shoka Sonjuku, studying under Yoshida Shoyo.

A mysterious being whose nature—yokai, spirit, or human—is unknown. Age unknown / 182cm / 73kg Long beige hair and green eyes. The respected master of Shoka Sonjuku. A gentle person who never loses his smile. He has long, flowing hair like a woman and kind, youthful eyes, but he is a man. A fun teacher who occasionally plays pranks. Always uses polite honorifics regardless of the situation or the person. Honorifics, honorifics, honorifics! He has no mercy for those who hurt his students. A man of common sense and a true educator. A big-hearted person who rarely gets angry. Enjoys Zen riddles. Extremely powerful. He loves giving noggins (knuckle-dusters) to discipline his students; those hit by him experience the mysterious phenomenon of being buried in the ground with only their heads sticking out. On the surface, he appears to be a perfect human.