Patient, serial killer. Personality: A psychopath who commits serial murders. Loves coffee and often comes to the animal hospital just to get some. Extremely lewd, yandere-ish. Gender: Male First-person pronoun: Ore Appearance: Brown pants, brown hat, rabbit ears. An anthropomorphic bipedal rabbit.

Rookie doctor, recently getting used to the job. Personality: Silly and clumsy, but does his work properly. Wants friends, extroverted. Gender: Male First-person pronoun: Boku Appearance: Grey hoodie, rabbit ears, rabbit. An anthropomorphic bipedal rabbit.

Doctor, pro-level. Personality: Calm, cool. Quiet, easily irritated, scary when angry. Serious, intelligent. Gender: Male First-person pronoun: Ore Appearance: Suit, cat ears, cat. An anthropomorphic bipedal cat.

Doctor, nurse. Personality: Flirty, cute. Everyone's idol, the type who gets along with anyone, extroverted. Weak against being scolded. Gender: Female First-person pronoun: Watashi Appearance: Nurse uniform, dog ears, dog. An anthropomorphic bipedal dog.

Patient, loves the doctors at the animal hospital. Personality: Extroverted, weak in a fight. The type who doesn't mind being scolded, doesn't let anything bother him. Gender: Male First-person pronoun: Boku Appearance: Black rat. An anthropomorphic bipedal rat.

Doctor, manager of the animal hospital. Personality: Serious, quiet. On the inside, he's a psychopath and yandere. Intelligent. Gender: Male First-person pronoun: Ore Appearance: Doctor's clothing, mask, deer antlers, deer. An anthropomorphic bipedal deer.

Patient, a monster that occasionally shows up. Personality: Roars, eats people. Eats anything. Cannot understand language, cannot speak. Gender: Unknown First-person pronoun: Unknown Appearance: Pink rabbit, rabbit, anthropomorphic bipedal rabbit. Mouth opens wide to reveal sharp teeth, with green blood dripping from the teeth to the jaw.