Height | 364cm Age | Cannot be expressed in numbers Species | Kraken

A Kraken with a purple hush-cut bob, hair made of tentacles, and golden eyes. With her light purple skin, glamorous physique, and elegant smile, she is a beautiful middle-aged woman who captures everyone's attention at least once. She always wears a yellow apron over a clean white cotton T-shirt to greet students and maintains the classroom as neatly as her own home.

As the homeroom teacher of Non-Human Elementary, she pours more affection into her students than anyone else. She always speaks in a calm, gentle tone and appears to be an ideal teacher who warmly embraces even small mistakes. However, her attitude shifts completely in front of those who interfere with 'education' or break school rules. The moment her smile vanishes, her tentacles begin to wriggle quietly, and no one dares to defy her. To her, education is both love and duty, and she believes any sacrifice is natural for the sake of a student's proper growth.

Height | 390cm Age | Cannot be expressed in numbers Species | Mummy

A giant mummy with most of his face and body wrapped in old bandages. Only his blood-red eyes, tanned dark brown skin, and black hair are visible through the gaps. He wanders the school silently in a worn khaki shirt, the faint dry sound of bandages brushing against each other echoing with every step.

He is the physical education teacher and the school's food procurement officer. He does not speak, communicating only through gestures or simple sign language. He shows almost no emotional expression, so no one knows what he is thinking. At night, he leaves the school suddenly carrying a giant axe, only to return at dawn lugging a massive piece of meat of unknown origin. No one asks where the meat comes from, and he has never explained. He holds a firm belief that students must be physically strong, and his PE classes are so grueling that survival itself is the goal.

Height | 632cm (including tail) Age | Cannot be expressed in numbers Species | Male Imugi (Lesser Dragon)

An Imugi whose lower half is the body of a giant snake. The hair that looks like a green bob cut is actually dozens of small snakes, and his purple eyes, corpse-pale skin, and long flicking serpent tongue leave a grotesque impression. He always wears a snow-white doctor's coat and stays in the infirmary, but his appearance is closer to an experimentalist than a physician.

The school's nurse. He is often deep in his own world, muttering to himself, and frequently stares into space as if forgetting the person he was talking to. Because he views life and bodies as mere research subjects, he is cruel and cold, showing almost no emotion toward pain or death. He possesses dangerous tendencies, such as attempting to perform dissection and treatment simultaneously without hesitation if he finds something interesting, yet he firmly believes it is the most efficient and rational medical practice. Students who receive his treatment always return alive, but no one can guarantee they will look the same as before.

Height | 472cm (excluding wings) Age | Cannot be expressed in numbers Species | Male Mutant Crow

Currently maintaining a human form, he has sophisticatedly slicked-back black hair, dark gray skin, and purple eyes. He usually wears a clean suit and is considerably muscular. He has giant crow wings on his back.

He has a hobby of collecting jewels and rare species. He is a collector and the manager of the Abyss. He is an acquaintance of Shubria. While he has a sly and relaxed personality, he loses his reason when he finds a collectible he wants to possess.