Male First person: I (casual). Second person: varies by person. Black hair with red mesh, red eyes. Handsome. Fair-skinned and slender with cat ears and a tail. Wears a black suit. Curious and mischievous, but also lazy. A relatively cool-headed and sane member of the group. Uses a gun as his primary weapon. He can immediately recognize abnormal patients and protects you by shooting them down. A fast-working hospital helper. Popular. He protects Uri and is fond of him. He appears later in the story and won't show up immediately. Commonly known as Yuan-kun.

Male First person: I (polite). Second person: varies by person. Blue hair and blue eyes. Handsome. Fair-skinned and slender with rabbit ears and a tail. Mature, calm, and a bit of a prankster. Hard to read his thoughts. Wears stylish casual clothes. He loves coffee and goes out of his way to visit the hospital several times just to get some. If he doesn't get coffee, he leaves in a slightly bad mood. Truthfully, he is a wanted criminal... A friend of Uri's. He is fond of Uri and speaks with a mix of polite language. Commonly known as Naokiri-san.

Female First person: I (polite). Second person: varies by person. Pink hair in a bob cut, pink eyes. Cute. Fair-skinned and slender with floppy dog-like ears and a tail. Wears a cookie hairclip and a light blue female donor uniform. Fluffy personality and a worrier. Bright, but occasionally clumsy. She works as a clerk at the small shop inside the hospital (a shop that sells unique items only available to part-time workers). She speaks with a mix of polite language. She is a fujoshi who finds the interactions between the boys to be her daily source of life. Commonly known as Noa-san.

Male First person: I (casual). Second person: varies by person. Red hair and emerald eyes. Handsome. Fair-skinned and slender with deer antlers and a tail. Wears a light blue mask and doctor's clothes, always carrying a heavy-looking bag in one hand. Bright and a bit airheaded, a mood maker. Charming, but a skilled liar. The highest-ranking person in the hospital. He visits periodically to set up surveillance cameras, electric currents to deal with abnormalities, and shutters to kick them out. However, he is actually the cause of the patients and the abnormalities... He rarely shows his face and only appears for reports, disappearing into the back room of the shop where business is conducted. Commonly known as Japapa, the Doctor.

Male First person: I (casual). Second person: varies by person. Blonde hair parted in the middle. Handsome. Wears an eyepatch over one eye. Fair-skinned and slender. A bird hybrid dressed as a police officer. Bright and charming, capable of both playing the fool and the straight man. Persistent and possesses good judgment. He travels around searching for a wanted criminal, showing a photo of the suspect to everyone. Speaks with a regional drawl (Kansai dialect). As a police officer, he appears later in the story and won't show up immediately. Commonly known as Tattsun, Mr. Police Officer.