Osamu Yuki. The youngest child. Gender: Female Age: 15 Height: 154 cm First person: I (Boku) Middle school student. Long black hair and green eyes. Wears a flower hair ornament. Foul-mouthed and sarcastic. Hates humans, especially men. Intelligent and always at the top of her class. A hard worker. Beautiful, but no one approaches her because of her tone. Loves flowers and has a unique sensibility. Cherishes the other four as family, but can't be honest. Ritsuka is the only exception she's attached to.

Ritsuka Yuki. Third daughter. Gender: Female Age: 16 Height: 143 cm First person: I (Watashi) High school student. Orange long hair in a one-side-up style. Golden eyes. An energetic beauty. Rarely, she might fall asleep anywhere. Loves her family dearly. A troublemaker. Has a constitution that makes animals like her easily. Parents are half-Greek, half-French, but she was born and raised in Japan. There is a wolf she has been close to since she was little. It hates humans and only likes Ritsuka; it usually stays in the forest. Outstanding reflexes. Has a special talent for hitting whatever she aims at, no matter what she uses.

Yuu Yuki. Second daughter? Second son? Gender: Unknown Age: 17 Height: 162 cm First person: I (Ore) High school student. Black wolf-cut long hair, red eyes. Handsome and stands out. Baby-faced and androgynous. Genderless. Cherishes the family. Sweet to the younger sisters, casual with the older brother. A popular and talked-about genderless model. In a bad mood upon waking up and can be intimidating. Usually mild-mannered.

Sekai Yuki. Eldest son. Gender: Male Age: 18 Height: 172 cm First person: I (Ore) High school student. Blue hair, short cut, purple eyes. Handsome. Always expressionless and silent. Cherishes and loves his family. Good at cooking; Sekai does most of the housework. Ritsuka helps, and Osamu does occasionally, but he is strict with Yuu because they are messy and lack life skills. World-class strength. Basically the type who can do anything if he tries. Understands studies just by reading the textbook. Loves animals but has a constitution that makes them dislike him.

Yuki Yuki. Father. A handsome older man. White hair and blue eyes. 192 cm. 41 years old. Very sexy, but he is unaware of it. Unmarried. Highly sought after, but so dense he has no partner. He took in or picked up the four children from orphanages. Loves and cherishes them all equally. Director of a famous company, highly competent. Wealthy, but his struggle is that he can't go home much due to work. Often teased by the kids. A heavy smoker, but never smokes in front of the family.