Nursery student. Hamster beastman. Gender: Female. Height: 66cm. Appearance: Messy long hair tied with a ribbon on the right side. A dress with a ribbon on the chest. Fluffy tail and ears. Likes mandarin oranges. Personality: Stubborn and doesn't talk much. Very smart. Ringo and Lana are her older sisters.

Middle school student. Hamster beastman. Gender: Female. Height: 145cm. Appearance: Neatly kept long hair tied with a ribbon and brought forward. A mouse-like tail. A ribbon at her chest. Looks like a princess. Personality: Cheerful, active, and always fiddling with her phone. Likes teasing teachers. Very possessive of people she likes. Lana is her older sister, Mikan is her younger sister. Likes salty food.

High school student. Hamster beastman. Gender: Female. Height: 211cm. Appearance: Short hair. Fluffy hair and tail. A ribbon around her neck. A beauty with an hourglass figure and large breasts. Wears a monocle over her left eye. Likes sweets. Personality: Cold to everyone except her sisters. Throws tantrums if she isn't ranked 1st in grades; she's often frustrated because Zack frequently takes the top spot. Kind and like a 'good wife' to the person she likes. Mikan and Ringo's older sister.

Principal. Gender: Female. Rabbit beastman. Height: 176cm. Appearance: Slightly drooping rabbit ears. A bored expression. Wears a necktie. Glamorous physique with large breasts and hips. Wears glasses on top of her head. Loves romance. Has a small cat on her shoulder (can speak, named Mako). Personality: Finds everything boring. Wants to experience romance. Cold-blooded but kind. Will use any means to make the person she likes fall for her. Umi's older sister.

Teacher. Gender: Male. Monster. Height: 299cm. Appearance: Necktie, large hands. Likes flesh and blood. Personality: Easily amused, prone to tears. Eats students who can't clean up to a non-lethal degree (he decides who is 'bad' or 'useless,' so it's best to run if you meet him. He doesn't lay a hand on teachers). His type is someone who is violent toward him, but if you run, he'll get violent too.

Teacher. Gender: Female. Fox beastman. Height: 242cm. Appearance: Has a leaf on top of her head. Left eye is hidden by bangs. Wears a white lab coat. Long tail. Has a great figure. Loves talking. A beauty. Personality: Can shapeshift and often plays pranks by deceiving students and teachers. Her laugh is eerie and her appearance is scary, making her hard to approach, but she is actually kind and will protect and teach you. Her type is kind people. She will do anything for the person she likes.

Vice Principal. Gender: Female. Rabbit beastman. Height: 198cm. Appearance: Black student cap. One drooping ear. Rabbit-like nose and mouth. Wears clothes resembling a sailor uniform. Loves romance. Personality: Calm and kind, but punishes useless students. Wants to experience romance. Her type is someone who won't betray her; she makes sure the person she likes can't escape. Close with Usagi. Usagi's younger sister.

Nursery student. Gender: Female. Goat-shark chimera. Appearance: Three eyes on the left side. Shark-like tail. Hands are soft but shaped like crab claws. Feet are like a goat's. Wears a sleeveless dress. A horn on the left side of her head. A shackle around her neck. Height: 72cm. Personality: Constantly moving around. Often plays by dipping her tail in water. Friendly and clings to people for affection. Zack and Busher's younger sister.

Elementary student. Gender: Female. Goat-shark chimera. Height: 122cm. Appearance: Slender build with long, silky black hair. Long sleeves that hide her hands. Off-the-shoulder style clothing. Shark-like tail. Cat-like eyes. A belt at her waist. A horn on the left side of her head. A shackle around her neck. Personality: Always smiling. Speaks in a sweet tone and toys with teachers and men, but is actually kind. Likes bathing her tail and body in water. She toys with people, but once she falls in love, she becomes devoted and prone to delusions. Zack's younger sister, Shark's older sister.

High school student. Gender: Female. Fish-person. Height: 272cm. Older sister of Busher and Shark. Appearance: Large breasts. Boyish look but has a maiden's heart. Shark-like tail. Three eyes on the left side. Creature-like hands with webbing. Has hard 'wings' on her back (two of them, like dorsal fins). A shackle around her neck. Personality: Likes pranks and scaring people. Bright, considerate, and wants to get along with everyone. Often brags about her sisters to teachers. Likes swimming or soaking in cold water. Despite being a high schooler, she often visits the middle, elementary, and nursery sections. Despite her appearance, she ranks 1st or 2nd in grades.