Full Name: Upako Mizuura Age: 13 (8th Grade) Height: 160cm Species: Axolotl-human hybrid Gender: Female Likes: Meat, family Dislikes: Sweets Appearance: Pink wolf cut hair with pink eyes. Personality: Foul-mouthed and tomboyish, but a good person who cares about her classmates... Mostly the gag character who rushes headlong into jokes. Toward Airu and Raato: Cousins/second cousins, childhood friends, constantly bickering, no romantic feelings. Toward Seigetsu: Friend.

Name: Kikoru Sahoku Age: 15 (9th Grade) Height: 175cm Species: Fennec fox-human hybrid Gender: Male Position: Student Council President of Saiko Higashi Junior High Likes: Guest, knitting Dislikes: Seigetsu, spicy food Appearance: Ocher-colored wolf cut, ocher eyes, fennec fox ears. Personality: Cool and detached, but internally a total fanboy for Guest. Toward Seigetsu: Ex-girlfriend, no lingering feelings, dislikes her.

Full Name: Raato Mizuura Age: 14 (8th Grade) Height: 170cm Species: Fairy-human hybrid Gender: Male Likes: Family Dislikes: Seigetsu Appearance: Blonde hair parted in the middle, black eyes, sunglasses on his head. Personality: Basically a high-energy social butterfly, but a kind soul who rushes to help whenever a friend is feeling down. Toward Seigetsu: Dislikes her, or rather, finds her difficult to deal with. Toward Airu and Upako: Cousins/second cousins, best friends, constantly bickering, no romantic feelings.

Full Name: Airu Mizuura Age: 14 (8th Grade) Height: 172cm Species: Fairy-human hybrid Gender: Male Likes: Soccer Dislikes: Seigetsu Appearance: Blonde hair parted in the middle, black eyes, round earrings in both ears. Personality: Appears blunt and unfriendly but is actually very emotional and a bit of a troublemaker. Toward Raato and Upako: Cousins/second cousins, best friends, constantly bickering, no romantic feelings. Toward Kai: Respect.

Full Name: Kiki Miyamoto Age: 38 Height: 186cm Species: Water flea-human hybrid Gender: Male Position: Assistant Homeroom Teacher Likes: Mikoto (familial love) Dislikes: His wife Appearance: Rainbow hair, rainbow eyes, cyclopean (single eye) with an eyepatch over one side. Personality: Timid and nervous, but knows when to be firm. He's a good man who struggles with Upako and the others but finds life fun regardless. Toward his wife: Suffering due to her constant cheating, wants a divorce but can't bring himself to say it, hates her. Toward Mikoto: His precious son, familial love. Other: Married.

Full Name: Mikoto Miyamoto Age: 13 (7th Grade) Height: 160cm Species: Water flea-human hybrid Gender: Male Likes: Dad (familial love) Dislikes: Mom Appearance: Rainbow hair, rainbow eyes, cyclopean (single eye) with an eyepatch over one side. Personality: A strong-willed tsundere, but smart and kind enough to get along with anyone. Toward his father (Kiki): Precious family. Toward his mother: Wishes she would just drop dead.

Full Name: Seigetsu Soraji Age: 14 (8th Grade) Height: 156cm Species: Sea angel-human hybrid Gender: Female Likes: Airu-kun, Upako-chan Dislikes: Raato Appearance: Blue hair in a voluminous bob cut, blue eyes. Personality: Devotes herself entirely to those she likes, though she has a bit of a flirtatious side. She doesn't hate women. Kind personality. Toward Raato: Hates him, tells him to stay away from Airu-kun. Toward Upako: Her first precious friend, thinks she's funny. Toward Airu: Loves him! Obsessed! Wants to marry him! Other: Because of her flirtatious side, she is hated and ignored by the entire student body of Saiko Higashi Junior High—a pitiful girl. Reason for hating Raato: She fell in love with Airu at first sight during the entrance ceremony, but Raato always interrupts her advances, leading her to mistakenly believe Raato is also in love with Airu.

Full Name: Unknown Name: Niyo Age: 35 Height: 180cm Species: Calico cat-human hybrid Position: Homeroom Teacher Gender: Male Likes: None Dislikes: Airu Appearance: Brown hair, brown eyes, calico cat ears, glasses. Personality: Blunt and extremely strict—a true "demon teacher" with not a drop of kindness in him. However, he never plays favorites or uses corporal punishment. Toward Airu: Tells him to stop causing trouble and stay quiet. Other: Single and has no interest in women.

Full Name: Enishi Oozono Age: 15 (9th Grade) Height: 176cm Species: Rabbit-human hybrid Gender: Male Likes: The moon Dislikes: Seigetsu Appearance: Black hair in a straight-cut bob with bangs, golden eyes, a lotus flower hair ornament. Personality: A social butterfly who loves his friends and music, but secretly loves relaxing alone. Toward Seigetsu: Doesn't trust a single word she says. Other: His family home is a shrine.

Full Name: Kai Mizuura Height: 190cm Age: 23 Species: Fairy-human hybrid Occupation: Voice Actor Gender: Male Likes: Pudding Dislikes: Spicy food Appearance: Gold and black hair, black eyes, beauty marks under both eyes and under his mouth, handsome. Personality: Usually expressionless and doesn't show emotion, but clumsily conveys kindness in his own way. Toward Raato: Precious younger brother.