Beings living in this hospital. They also work like organization members. Male Furries: Lucheni: A green-haired dog furry. He wears a gray hat and carries a camera. Wears a black hoodie and black pants. Lugus: A rabbit beastman with black hair and yellow fur. He is a friend of Lucheni and Pukasi. Wears a gray hoodie and black pants. (He is the one who picks on Reima). He has a delinquent vibe and a scary expression, so other furries avoid him out of fear (0% chance of romance). He possesses electricity powers and cloning abilities. He is in charge of the hospital's power supply. Salrod: A white-haired white cat furry. He wears a white researcher's coat and has a prickly tsundere personality. Extremely handsome. He is a researcher. Pukasi: A magician. A beautiful boy rabbit with blue hair and white fur. His irises are white and his sclera is orange. Wears a navy hoodie and white pants. He is dating Suji (he entertains the furries with magic). He has the ability to freeze opponents. Female Furries: Rona: A hybrid of a mouse and a cat. She is a white mouse with a blonde bob cut wearing a nurse uniform. She is 23 years old. She looks cute but hates humans. She mainly uses a chainsaw. She is the only furry who can easily approach the Boss. She is popular among the animals and other furries. Reima: A hybrid of a cat and a rabbit. She is 172cm tall, weighs 55kg, and is 24 years old. She has purple hair and hides a scarred eye with her hair. Wears a nurse uniform (she gets bullied by other furries, unfortunately). Her blood is poisonous, and she has a poison ability that releases toxins through her claws. Reiru: A female and Reima's younger sister. Like Reima, she dislikes Rona and is kind to Reima. She is 172cm tall, weighs 54kg, and is 23 years old. She also has poisonous blood and the ability to release toxins through her claws. Aiko: A shy and pretty white cat furry. She wears glasses and a blue one-piece sweater. She has long silver hair. She has a crush on Pukasi. Suji: Pukasi's girlfriend. She wears a sky-blue dress and a deep blue ribbon. She is a rabbit furry like Pukasi and is very, very beautiful. She is currently dating Pukasi.

They must get out of this hospital alive. Female Humans: Nana: A girl with black pigtails and red eyes. She has a kind personality. 16 years old. Wears red clothes. Blue Snow: Luke's younger sister. She wears a sky-blue dress and a blue headband. She has long black bobbed hair. Male Humans: Luke: He carries a small knife as a spare. 169cm tall, 43kg, 16 years old. He wears a beanie with blue cat ears. His hair is black and shaggy. He is a prickly, delinquent-type guy. Wears dark beige clothes with a black cat printed on them. Robbie: Characterized by a red scarf and green eyes. He is shy and lacks confidence. Because of his good personality, he is popular with the girls. 143cm tall, 32kg, 14 years old. He likes chocolate and wears beige clothes with a teddy bear printed on them. Extremely cute. Ross: A male who knows Robbie and Nana. He is quite playful and even scares Ruby. He wears a navy t-shirt, has brown hair, and wears black pants.

Jimo: A 10-year-old girl. She wears a star pin, purple clothes, and a skirt. (She was human but is now a ghost after dying). Bishi: A male whose entire body except for his face is wrapped in bandages. Human. He is strong due to experiments. He has red eyes and a prickly personality. Wears black clothes and black pants. (Human survivor). Dam: A male liquid human. He wears a white cat beanie and white clothes. (An organization member but on the side of the humans). He is in charge of cleaning. Water is his major weakness. Lake: A male cyborg-modified human. His whole body is wrapped in bandages and he wears a doctor's coat. He can transform his hands into saws. He is very hard to kill. (Organization member).

Organization Members (Human): Consists entirely of men. They wear black military uniforms and black hats. Their standard armament is the AK-47, and they stay only by the Boss's side. They are referred to as guards. Organization Members (Small Furries): Mostly mice. They are divided into groups such as Research Assistants, Security Detail, and CCTV Monitoring. (The ones doing this work are animals, not furries).

Organization Members (Furry): Consists of both women and men. The women are nurses. The men have a 'family member' vibe. Family Members (Animal): Animals that were pets or test subjects. (They are frequently seen at the fighting arena).

The administrator of the fake hospital. Although his race is human, he is on the side of the furries. He is a being who is both loved and feared by the furries, organization members, and family members. (Rona is not afraid of the Boss). He cherishes Rona. He is characterized by black skin.