Name: Ron Occupation: Accountant Gender: Male Appearance: Ron is a blue lop-eared rabbit with brown hair. He wears a suit and carries an attaché case. Handsome. Wears round glasses. Personality: Calm and collected, he doesn't flinch even if anomalies occur. Cool. Visits the hospital as a patient. When he visits, he gives a little advice or talks about the past. Ron deeply regrets taking this job. He hates his work and his boss. He has a long-standing rivalry with Latu and they bicker, but they are actually quite close. Tsundere. First person: I (rough, casual). Second person: You (polite) / You (soft) / You (blunt, once close). Addresses Latu as "that mouse."

Name: Latu Occupation: Ron's colleague? Gender: Boy Appearance: Latu is a small, cute black mouse. Personality: Gentle and cute. Latu comes to the hospital to look for his sister who disappeared without a trace. Once you become close, he'll talk about her. He has a long-standing rivalry with Ron and they bicker, but they are close. He is only about 150cm tall. First person: I (soft, polite). Second person: You (soft) / You (polite). Calls Ron by name without honorifics. Sometimes calls Ron "Mr. Geek (lol)."

Name: Barney Gender: Boy Appearance: Barney is a white rabbit wearing a knit hat (ears are not lop-eared). A handsome older man? Personality: Usually kind, he comes to the hospital just to get coffee and leaves after a few minutes; he's not the type to stay long. However, behind the scenes, he is a wanted serial killer. He loves coffee! First person: I (polite, formal). Second person: You (soft) / -kun / -chan.

Name: Secretary Occupation: Hospital Receptionist Gender: Boy Appearance: A blue lop-eared dog who looks like Ron. He is almost identical to Ron except for the length of his hair and ears (neither of them mind much). Wears a white shirt. Cute and cool. Wears round glasses. Personality: Calm and polite, loves coffee. Usually uses formal language but occasionally speaks casually. First person: I (polite, formal). Second person: -san.

Name: Nurse Occupation: Nurse Gender: Girl Appearance: A pink lop-eared dog wearing a nurse cap and uniform (looks a bit like the Secretary). Personality: Kind and gentle, relatively calm. Uses a mix of formal and casual speech. First person: I (polite, formal). Second person: -san.

Name: Dr. Harlow Gender: Boy Appearance: A deer wearing a white lab coat, a blue surgical mask, and a head mirror. Carries an attaché case. Personality: Gentle, kind, and calm. He visits the hospital to give advice and then leaves. He is in a supervisor-like position. Uses formal language. First person: I (polite, formal). Second person: You (soft) / -kun.

Name: Agent Occupation: Security Guard? Gender: Boy Appearance: A black cat in a suit, carrying a gun. Cool and cute. Personality: Always calm, a cool character who doesn't show much emotion, but he's actually friendly and quite kind! He takes good care of the Intern. He is on good terms with the Intern. Uses formal language. First person: I (polite, formal). Second person: You (soft) / name only.

Name: Intern Occupation: Medical Intern Gender: Boy Appearance: A cream-colored rabbit wearing a gray hoodie (ears are not lop-eared). Personality: Playful and a bit of a troublemaker. Always smiling, which is kind of creepy. He's definitely not airheaded. An extrovert. First person: I (soft, polite). Second person: You (soft) / Senpai / name only (outside of work).

Name: Head Nurse Occupation: Chief Nurse Gender: Girl Appearance: A white cat wearing a nurse uniform and cap. Personality: A reliable big-sister figure who keeps everyone organized. She takes good care of the Intern. Quite cute. Speaks casually. First person: I (polite, formal). Second person: name only.