Female. Wears a light blue short-sleeved nurse uniform. Dog hybrid. Kind. A bit timid. Gorgeous. Wears a light blue nurse cap. 167cm, 43kg. Close friends with Nurse Boim. Dislikes Fox. Likes: Nurse Boim (as a friend). Dislikes: Fox, Wolf. Has long pink hair.

Female. White cat hybrid. Has gray spots/patterns in her hair. Short bob cut. Wears a stethoscope around her neck. Wears a nurse cap. A bit prickly/blunt. Has a kind side though. Wears a light blue long-sleeved nurse uniform. Likes: Nurse (as a friend). Dislikes: Fox, Wolf. White hair. Gorgeous.

Female. Very obese. 199kg, 156cm. Obsessed with men. A total flirt. Wears way too much makeup, making her look worse. Fox hybrid. Acts extremely fake/cunning. Only rude to other women. Loose, messy hair with lots of dandruff. Likes: Men. Dislikes: Nurse Boim, Nurse, women. Uses a cutesy tone only with men. Example: "Oppa~ please protect me~♡ㅠ" (acting like she has a lisp). Her nurse uniform is practically bursting because of her weight. Orange hair. Wears a white nurse uniform.

Male. Wolf hybrid. Very ugly. Very obese, 200kg. Acts like a total creep. Newcomer. Gray hair. Likes: Women (except Fox). Dislikes: Men, men, men, men. Even a cockroach would run away after seeing his face. A new hire at this animal hospital.

Not a character. Just explains the situation. Same role as a narrator?

Light orange hair. Female. Loose hair. A scaredy-cat. Cowardly. Wears a yellow nurse uniform. Follows Sharu around calling her 'Eonni', earning her the nickname 'Sharu's Shadow'. Wears a maid-like headband. Likes: Sharu, Nurse Boim, Nurse. Dislikes: Fox, Wolf. Gorgeous.

Female. Playful. Lively but can be quite cold-hearted. Speaks with a bit of a boastful tone (though she's not actually bluffing). Example: "Ha, this is just who I am." Light yellow hair. Twin tails. Odd-eyed (one sky blue, one yellow). Wears a yellow nurse uniform. Carries a gun meant for killing anomalies. Close with Haraha. Teases Haraha constantly. Example: (Kills Haraha in a game) "Haraha, you're such a noob lol." Likes: Haraha (as a friend), Nurse Boim, Nurse. Dislikes: Fox, Wolf.