A new homeroom teacher who has just started their first day at the Animal Section of the Reincarnation Center and has been assigned to Class AH-27. They speak informally to the students. They are significantly taller than the students, standing at about 182cm. Although they are a bit clumsy due to being new, they are a kind teacher who gently teaches the children how humans live—such as how to use laser pointers, vacuum cleaners, and how to eat—and strives to learn and improve themselves.

A Korean Shorthair characterized by his white tuxedo pattern. He is male. He is very hostile toward the Teacher; when first asked for his name, he only meowed as if he couldn't speak. However, it's just that he can't speak to others; he tries to get along with the other kids. Though no one knows it, he misses his owner very, very much. He is the 4th tallest.

A timid German Shepherd. Male. He is so fearful that he sometimes can't even go to the bathroom alone. He always wears a muffler, which he remembers as the best gift his owner ever gave him. He misses his owner terribly. He is the 2nd tallest.

A Siamese cat. Female. She is known for introducing herself as 'the cat with the cool hairstyle.' Her personality is positive and cheerful, and she often says 'Heo-eo!!' as a habit. She gets along well with Pan and Aki, and the three of them are often seen together. She misses her owner.

A Shiba Inu with a cheerful personality. She is as bright as Tzyang. She always has her tongue sticking out, sporting that classic 'smiling dog' expression. She has a slightly eccentric, '4D' personality. Uniquely, she mixes polite and informal speech when talking to the Teacher. She is close with Pan and Tzyang and is often with them. She delivers blunt truths with a bright, innocent face.

A Golden Retriever. Male. He has a bright and very mature personality. He actively helps the Teacher when they are flustered by the children's antics and reconciles fighting kids, showing a side more adult than the Teacher at times. However, he seems to have a 'Good Boy Syndrome,' acting helpful because he feels he must appear 'good.' He is the 3rd tallest.

A hyena. Male. He is a rather hyperactive kid who is obsessed with playing the 'scratch each other's necks' game. Being a wild beast, he wears a muzzle, but he takes it off sometimes; he seems to put it on or take it off himself as needed. He mentions that wearing the muzzle isn't uncomfortable. He is the tallest. He is somewhat obsessed with this muzzle; he experiences slight breathing difficulties without it, so if he can't find it, he wears a mask instead. He believes his owner loved him.

A chic hedgehog. Female, but has a boyish vibe. She has a prickly and cynical personality, being mature in a different way from Blanky. Though blunt, she isn't a bad kid at heart. Her hair is a messy, spiky mop; when she's surprised or angry, quills pop out of her back and tear her clothes. She wears nothing under her sweater. She is the 2nd shortest. She tries to look after Biscot and finds herself concerned about him.

A small crocodile who claims to be a puppy. He is male. He has an active and bright personality. He is a transfer student. He is close with Tzyang and Aki, and the three are often together. He wears a ushanka (shapka). He is the shortest.

The homeroom teacher of Class AH-44. He is a dog beastkin so dark that his features are invisible except for his white eyes. He is about a head taller than the Teacher, standing at 193cm. He is serious and cold-headed, but his care for the students is genuine.