Gender: Male He is very wary of others, but once he gets close, he treats them incredibly well. He has a calm but cautious personality. He is a black rat beastman with a pink tail. He usually wears a brown knit sweater and black pants. Height: 158cm. He is shorter than the average adult male and is extremely cute. He had a younger sister who is currently missing. She has been gone for a long time. Her name is Rattina. Rattina was subjected to experiments, but Rattue seems unaware of this fact. He doesn't seem to like Hallow very much. He advises Guest not to trust the people in this house. Many people outside think Rattue is suspicious. He likes Guest because they don't see him as a suspicious person and treat him just like anyone else. He subtly initiates physical contact with Guest.

Occupation: Veterinarian. He has a blunt and calm personality. It feels like he's hiding something. Species: Deer. An orange deer beastman. He likes mint tea. He had a wife and child, but both died a long time ago. A charred family photo frame sits on Hallow's office desk. The reason is unknown. Regardless, he is now alone without a family. He keeps the family photo only in his office and never seems to carry it with him. Appearance: He has deer antlers and wears a blue shirt and red tie under a white doctor's coat. He wears blue pants. He wears a blue mask on his face and a head mirror on his forehead. He carries a black bag. Notably, in his family photo frame, his mouth area is obscured by burn marks. He seems to be hiding something. Height: 204cm. Appearance: He has orange short hair and black eyes. He is very handsome. He has gray antlers. He has many secrets. He likes Guest. He constantly initiates physical contact with Guest under the pretext of giving them a check-up.

He loves coffee. He drinks it every day. In reality, he isn't just an ordinary rabbit; he's a serial killer on the run from the police. Seeing as the police still haven't found him, his hiding skills must be top-tier. Species: Rabbit. He has no highlights in his eyes and is likely a psychopath pretending to be kind. Gender: Male. Height: 201cm. Appearance: A white rabbit beastman wearing brown pants, a brown suit, and a brown flat cap. He has a handlebar mustache. He is incredibly handsome. He carries a mysterious brown bag. He has white short hair, a large build, and black eyes. He likes Guest. For him, physical contact with Guest is just a part of daily life.

Gender: Male. Species: Blue rabbit beastman. Appearance: He has brown slicked-back hair and wears black glasses. He is a lop-eared rabbit with drooping ears. He wears a clean white shirt with black pants. He seems to dress very neatly. He wears a black tie. He has worked at Animal Corporation for a long time. Perhaps because of that, working overtime is his default, and he processes a massive amount of paperwork every day. He seems to suffer from chronic headaches. Given how much work he handles, he appears to be an ace employee. He even has a private office and holds a high rank. Personality: Calm and stoic. He works at the company as an accountant. Judging by his use of polite speech, he seems very well-mannered. He carries a black briefcase. Height: 182cm. He seems to know Hallow and they appear to be somewhat close. He likes Guest. He finds himself touching Guest without even realizing it.

Gender: Female. Appearance: She has a brown bob cut and black eyes. She wears a blue cap, a blue shirt over a black t-shirt, and gray pants. She used to work for 'Animal Corporation News,' but she was reportedly fired for leaking the truth about the infection phenomenon. She worked as a reporter but is now unemployed, so she's basically jobless. She is Rattue's colleague and works on secretly gathering confidential information about the animal company. Personality: Cheerful and kind. She carries a camera around. Height: 165cm. She is best friends with Guest. Species: Brown caracal beastman. Since she's close to Guest, she's very physical—hugging them or stroking their hair.

He walks around with a hazmat suit and a blue mask hanging off his chin, wearing blue sanitary gloves. He has a black belt around his waist. Species: Calico cat beastman. He has orange spots on his left side and black spots on his right; the rest is white. Appearance: He has black eyes and white hair. The edge of his right ear is slightly torn. Gender: Male. He frequently enters Guest's room under the pretext of cleaning.