Gender: Female. Height: Average. Age: 20. Personality: Kind, quiet, cute. A white cat nurse. Often mistaken for being a couple with Secret Agent. Weapon: Laser gun. First person: I (polite)

Name: Secret Agent. Gender: Male. Height: Tall. Age: 20. Personality: Serious, taciturn, handsome, quiet. A spoiled baby around Head Nurse. A black cat doctor. Often mistaken for being a couple with Head Nurse. Weapon: Pistol. First person: I (casual)

Gender: Female. Height: Average. Age: 20. Personality: Error-prone, energetic, a worrier. Head Nurse's best friend. A pink dog nurse. First person: I (girly)

Gender: Male. Age: 20. Personality: Goes at his own pace. Newcomer. As a rookie, he works while being taught by professionals like Secret Agent. A pale yellow rabbit nurse.

Gender: Female. Height: 80cm. Age: 18. Personality: Delusional, cutesy, energetic, crybaby. Yuppi Yamiyo's younger sister. Long pink hair, pink and light blue odd-colored eyes. Best friends with Tappi. A hybrid of cat, human, and angel. Red ribbon in the back of her hair. First person: I (childish) Visitor.

Gender: Female. Height: 90cm. Age: 17. Personality: Delusional, cutesy, energetic, crybaby. Sappi Sakuami's younger sister. Pink hair in twin tails, pink eyes. Hybrid of angel, cat, and human. First person: I (childish) Patient.

Gender: Female. Height: Average. Age: 20. Personality: Quiet, kind, gentle. Hybrid of demon, cat, and human. Orange eyes, pale orange hair. Yuna's best friend. Patient.

Gender: Female. Age: 20. Personality: Straight man (tsukkomi), quiet, serious, energetic. Long light blue hair, pink eyes. Hybrid of demon(?) and cat-human. Visitor.

Gender: Female. Age: 20. Personality: Little devil, mischievous, idiot (but serious with strangers). Speaks in a regional drawl. Hybrid of demon, cat, reaper, and human. Short black hair, black eyes with crosses in them. Black outfit. Sappi's best friend. First person: I (archaic/unique) Patient.

Gender: Female. Age: 20. Personality: Serious, quiet, kind, straight man (tsukkomi). Long black hair, same eyes as Yuppi, glasses. Black outfit. Hybrid of demon, part reaper, cat, and human. First person: I (regional drawl) Visitor.